|
Most expensive steel
Quick question of curiousity here. What's the most expensive kind of steel you guys have ever seen, per pound? What's the craziest, most expensive stuff out there? For tools, guns, armour... or even for backhoe teeth :-)?
Chris |
Most expensive steel
On Mon, 16 Oct 2017 14:28:58 -0700 (PDT), Christopher Tidy
wrote: Quick question of curiousity here. What's the most expensive kind of steel you guys have ever seen, per pound? What's the craziest, most expensive stuff out there? For tools, guns, armour... or even for backhoe teeth :-)? Chris The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. -- Ed Huntress |
Most expensive steel
Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress:
The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris |
Most expensive steel
On Tue, 17 Oct 2017 09:21:55 -0700 (PDT), Christopher Tidy
wrote: Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress: The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris Just checking one place for the Rex 121 (Alpha Knife Supply), a 0.142" thick slab, 23.0" long and 6.0" wide, is $394.00. That must be for making some kind of nasty little sword, I guess. When it first came out, most of it was sold for making gear hobs. Those blanks were a lot more expensive then. OnLine Metals will sell you 3 ft. long bar, 1.5" diameter, of maraging steel for $920.51. -- Ed Huntress |
Most expensive steel
On Tue, 17 Oct 2017 09:21:55 -0700 (PDT), Christopher Tidy
wrote: Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress: The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris Interesting steel! https://www.google.com/search?q=CPM+...utf-8&oe=utf-8 Thanks! --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Most expensive steel
On Monday, October 16, 2017 at 2:29:00 PM UTC-7, Christopher Tidy wrote:
Quick question of curiousity here. What's the most expensive kind of steel you guys have ever seen, per pound? Well, doing science stuff sometimes requires isotopically pure iron. Not exactly steel, but for pricey, consider a gram of Fe56 and then "call for quote". |
Most expensive steel
If you buy metal from these and in little chunks you pay more
and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin On 10/17/2017 11:52 AM, Ed Huntress wrote: On Tue, 17 Oct 2017 09:21:55 -0700 (PDT), Christopher Tidy wrote: Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress: The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris Just checking one place for the Rex 121 (Alpha Knife Supply), a 0.142" thick slab, 23.0" long and 6.0" wide, is $394.00. That must be for making some kind of nasty little sword, I guess. When it first came out, most of it was sold for making gear hobs. Those blanks were a lot more expensive then. OnLine Metals will sell you 3 ft. long bar, 1.5" diameter, of maraging steel for $920.51. |
Most expensive steel
On Tue, 17 Oct 2017 19:03:42 -0500, Martin Eastburn
wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin Well, Crucible CPM Rex 121 is hot-isostatically-pressed powdered metal. You can put their biggest pieces -- a lot of them -- into the back seat of a Fiat 500. g As for maraging steel, most customers are governments. We embargoed maraging steel to Iran, because one of its critical uses is in making uranium centrifuges. It's not something that you buy in large quantities unless you're making ICBMs, air-superiority fighters, or equipment for making nuclear warheads. There's a growing use for it in 3D printing, but that's another story. -- Ed Huntress On 10/17/2017 11:52 AM, Ed Huntress wrote: On Tue, 17 Oct 2017 09:21:55 -0700 (PDT), Christopher Tidy wrote: Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress: The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris Just checking one place for the Rex 121 (Alpha Knife Supply), a 0.142" thick slab, 23.0" long and 6.0" wide, is $394.00. That must be for making some kind of nasty little sword, I guess. When it first came out, most of it was sold for making gear hobs. Those blanks were a lot more expensive then. OnLine Metals will sell you 3 ft. long bar, 1.5" diameter, of maraging steel for $920.51. |
Most expensive steel
Oh you mean it is a Craft Metal. Not a Production Metal.
No wonder. Martin On 10/17/2017 8:03 PM, Ed Huntress wrote: On Tue, 17 Oct 2017 19:03:42 -0500, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin Well, Crucible CPM Rex 121 is hot-isostatically-pressed powdered metal. You can put their biggest pieces -- a lot of them -- into the back seat of a Fiat 500. g As for maraging steel, most customers are governments. We embargoed maraging steel to Iran, because one of its critical uses is in making uranium centrifuges. It's not something that you buy in large quantities unless you're making ICBMs, air-superiority fighters, or equipment for making nuclear warheads. There's a growing use for it in 3D printing, but that's another story. |
Most expensive steel
On Tue, 17 Oct 2017 20:54:10 -0500, Martin Eastburn
wrote: Oh you mean it is a Craft Metal. Not a Production Metal. No wonder. Martin I wouldn't call either of them "craft." They're just very expensive, special-purpose steels. Rex 121 is a tool steel, sometimes called a "bridge material," bridging the gap between ordinary HSS and tungsten carbide; maraging has an extraordinary combination of properties (extremely high strength, combined with ductility) that sometimes justifies its very high cost. -- Ed Huntress On 10/17/2017 8:03 PM, Ed Huntress wrote: On Tue, 17 Oct 2017 19:03:42 -0500, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin Well, Crucible CPM Rex 121 is hot-isostatically-pressed powdered metal. You can put their biggest pieces -- a lot of them -- into the back seat of a Fiat 500. g As for maraging steel, most customers are governments. We embargoed maraging steel to Iran, because one of its critical uses is in making uranium centrifuges. It's not something that you buy in large quantities unless you're making ICBMs, air-superiority fighters, or equipment for making nuclear warheads. There's a growing use for it in 3D printing, but that's another story. |
Most expensive steel
On 2017-10-18, Martin Eastburn wrote:
If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin, composition wise, it is a steel with a little extra manganese and bits of nickel and moly, I cannot see how it should be so dense. Martin On 10/17/2017 11:52 AM, Ed Huntress wrote: On Tue, 17 Oct 2017 09:21:55 -0700 (PDT), Christopher Tidy wrote: Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress: The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris Just checking one place for the Rex 121 (Alpha Knife Supply), a 0.142" thick slab, 23.0" long and 6.0" wide, is $394.00. That must be for making some kind of nasty little sword, I guess. When it first came out, most of it was sold for making gear hobs. Those blanks were a lot more expensive then. OnLine Metals will sell you 3 ft. long bar, 1.5" diameter, of maraging steel for $920.51. |
Most expensive steel
On Wed, 18 Oct 2017 06:55:58 -0500, Ignoramus4513
wrote: On 2017-10-18, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin, composition wise, it is a steel with a little extra manganese and bits of nickel and moly, I cannot see how it should be so dense. https://www.google.com/url?sa=t&rct=...FVvEeVkL3 q0U Per cubic foot: Steel, Cast/Rolled 490.00 lbs Nickel 555.72 Manganese 463.10 Molybdenum 637.63 Martin On 10/17/2017 11:52 AM, Ed Huntress wrote: On Tue, 17 Oct 2017 09:21:55 -0700 (PDT), Christopher Tidy wrote: Am Montag, 16. Oktober 2017 23:46:54 UTC+2 schrieb Ed Huntress: The most expensive *commercially available* steel I've even seen is Cricible's CPM Rex 121, although it must have come down recently, because it's even being sold for making knife blades. It's an extreme high-speed steel. As for steel used in structural applications, the maraging grades are 'way up there. So how much do those steels cost? Chris Just checking one place for the Rex 121 (Alpha Knife Supply), a 0.142" thick slab, 23.0" long and 6.0" wide, is $394.00. That must be for making some kind of nasty little sword, I guess. When it first came out, most of it was sold for making gear hobs. Those blanks were a lot more expensive then. OnLine Metals will sell you 3 ft. long bar, 1.5" diameter, of maraging steel for $920.51. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Most expensive steel
On 10/18/2017 10:39 AM, Gunner Asch wrote: On Wed, 18 Oct 2017 06:55:58 -0500, Ignoramus4513 wrote: On 2017-10-18, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin, composition wise, it is a steel with a little extra manganese and bits of nickel and moly, I cannot see how it should be so dense. https://www.google.com/url?sa=t&rct=...FVvEeVkL3 q0U Per cubic foot: Steel, Cast/Rolled 490.00 lbs Nickel 555.72 Manganese 463.10 Molybdenum 637.63 Martin AR 500 is far more complex than that. It contains secret amounts of many of the high end metals. Your Mang and Moly are in rows 4 and 5 along with Cr and Vanadium and Iron and Colbolt. Baby stuff for keeping out large bullets. Try atomic numbers 104 - 108, 58-60 and all of yours. Massive Atoms are Heavy. They also tend to stick together. e.g. U92 is near by and it takes a Boom to make it split apart. Hf (72) Hafnium is used as a source of electrons in Plasma torches. You add electrons to it and it showers that amount back to the tip. https://www.chapelsteel.com/ar500-ar500f.html https://www.chapelsteel.com/weight-steel-plate.html AR500 / AR500F AR500 and AR500F are quenched & tempered through hardened wear resistant grades of abrasion resistant steel plate used for severe impact and abrasion. Chapel Steel's premium grade of these products are Chapalloy 500 and Chapalloy 500F. Chapel Steel recommends the F chemistry in applications where there will be forming or higher impact. Mechanical Properties: Tensile: 247 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Yield: 187 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Elongation: 11.1% in 8 Brinell: 450 min / 500 nominal Chapel also makes this : Chapalloy Armor Plate A proprietary ballistic steel plate which is through hardened, quenched and tempered and is guaranteed to meet various NIJ and UL specifications. Acceptance criteria is based on the specification desired and the thickness of the plate required to meet that standard. The Houston facility is mostly ship and offshore with armor car and fixing CAT machines..... Chapel at : LOCATIONS Philadelphia, PA Chicago, IL Birmingham, AL Houston, TX Portland, OR Hamilton, ON Cleveland, OH Martin |
Most expensive steel
On Wed, 18 Oct 2017 16:30:06 -0500, Martin Eastburn
wrote: On 10/18/2017 10:39 AM, Gunner Asch wrote: On Wed, 18 Oct 2017 06:55:58 -0500, Ignoramus4513 wrote: On 2017-10-18, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin, composition wise, it is a steel with a little extra manganese and bits of nickel and moly, I cannot see how it should be so dense. https://www.google.com/url?sa=t&rct=...FVvEeVkL3 q0U Per cubic foot: Steel, Cast/Rolled 490.00 lbs Nickel 555.72 Manganese 463.10 Molybdenum 637.63 Martin AR 500 is far more complex than that. It contains secret amounts of many of the high end metals. Your Mang and Moly are in rows 4 and 5 along with Cr and Vanadium and Iron and Colbolt. Baby stuff for keeping out large bullets. Try atomic numbers 104 - 108, 58-60 and all of yours. Massive Atoms are Heavy. They also tend to stick together. e.g. U92 is near by and it takes a Boom to make it split apart. Hf (72) Hafnium is used as a source of electrons in Plasma torches. You add electrons to it and it showers that amount back to the tip. https://www.chapelsteel.com/ar500-ar500f.html https://www.chapelsteel.com/weight-steel-plate.html AR500 / AR500F AR500 and AR500F are quenched & tempered through hardened wear resistant grades of abrasion resistant steel plate used for severe impact and abrasion. Chapel Steel's premium grade of these products are Chapalloy 500 and Chapalloy 500F. Chapel Steel recommends the F chemistry in applications where there will be forming or higher impact. Mechanical Properties: Tensile: 247 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Yield: 187 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Elongation: 11.1% in 8 Brinell: 450 min / 500 nominal Chapel also makes this : Chapalloy Armor Plate A proprietary ballistic steel plate which is through hardened, quenched and tempered and is guaranteed to meet various NIJ and UL specifications. Acceptance criteria is based on the specification desired and the thickness of the plate required to meet that standard. The Houston facility is mostly ship and offshore with armor car and fixing CAT machines..... Chapel at : LOCATIONS Philadelphia, PA Chicago, IL Birmingham, AL Houston, TX Portland, OR Hamilton, ON Cleveland, OH Martin Martin, AR500 is about the same density as any other low-alloy zteel. As Gunner said, the composition is very mild. It gets its strength from having carbon-multipliers (chromium, moly and manganese, mostly) that allow it to be quenched-and-tempered to a higher hardness than the carbon (0.30) would normally suggest. n that regard, but not in others, it's like 4130. There's nothing magic or special about it. It's an abrasion-resistant, hard low-allow steel with good impact resistance. -- Ed Huntress |
Most expensive steel
On Wed, 18 Oct 2017 16:30:06 -0500, Martin Eastburn
wrote: On 10/18/2017 10:39 AM, Gunner Asch wrote: On Wed, 18 Oct 2017 06:55:58 -0500, Ignoramus4513 wrote: On 2017-10-18, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin, composition wise, it is a steel with a little extra manganese and bits of nickel and moly, I cannot see how it should be so dense. https://www.google.com/url?sa=t&rct=...FVvEeVkL3 q0U Per cubic foot: Steel, Cast/Rolled 490.00 lbs Nickel 555.72 Manganese 463.10 Molybdenum 637.63 Martin AR 500 is far more complex than that. It contains secret amounts of many of the high end metals. Your Mang and Moly are in rows 4 and 5 along with Cr and Vanadium and Iron and Colbolt. Baby stuff for keeping out large bullets. Try atomic numbers 104 - 108, 58-60 and all of yours. Massive Atoms are Heavy. They also tend to stick together. e.g. U92 is near by and it takes a Boom to make it split apart. Hf (72) Hafnium is used as a source of electrons in Plasma torches. You add electrons to it and it showers that amount back to the tip. https://www.chapelsteel.com/ar500-ar500f.html https://www.chapelsteel.com/weight-steel-plate.html AR500 / AR500F AR500 and AR500F are quenched & tempered through hardened wear resistant grades of abrasion resistant steel plate used for severe impact and abrasion. Chapel Steel's premium grade of these products are Chapalloy 500 and Chapalloy 500F. Chapel Steel recommends the F chemistry in applications where there will be forming or higher impact. Mechanical Properties: Tensile: 247 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Yield: 187 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Elongation: 11.1% in 8 Brinell: 450 min / 500 nominal Chapel also makes this : Chapalloy Armor Plate A proprietary ballistic steel plate which is through hardened, quenched and tempered and is guaranteed to meet various NIJ and UL specifications. Acceptance criteria is based on the specification desired and the thickness of the plate required to meet that standard. The Houston facility is mostly ship and offshore with armor car and fixing CAT machines..... Chapel at : LOCATIONS Philadelphia, PA Chicago, IL Birmingham, AL Houston, TX Portland, OR Hamilton, ON Cleveland, OH Martin Martin...what Thickness do I need for a front and back plate if I assemble it using A500 plate? 5.56 FMJ-3006 172gr FMJs I see a lot of hype on the various ads so I thought Id ask you. What would be a proper backing/under wear for those plates? Some sort of foam? Any idea how thick? Can I get raw plate and then use bed liner to coat the plates for antispalling? Thanks! Gunner --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Most expensive steel
On 2017-10-18, Gunner Asch wrote:
Martin...what Thickness do I need for a front and back plate if I assemble it using A500 plate? 5.56 FMJ-3006 172gr FMJs I see a lot of hype on the various ads so I thought Id ask you. What would be a proper backing/under wear for those plates? Some sort of foam? Any idea how thick? Can I get raw plate and then use bed liner to coat the plates for antispalling? I have a target made of 3/4" steel plate, with a piece of 3/4 plywood clamped in front. I only use it for .22s though. i |
Most expensive steel
On Wed, 18 Oct 2017 22:29:21 -0500, Ignoramus4513
wrote: On 2017-10-18, Gunner Asch wrote: Martin...what Thickness do I need for a front and back plate if I assemble it using A500 plate? 5.56 FMJ-3006 172gr FMJs I see a lot of hype on the various ads so I thought Id ask you. What would be a proper backing/under wear for those plates? Some sort of foam? Any idea how thick? Can I get raw plate and then use bed liner to coat the plates for antispalling? I have a target made of 3/4" steel plate, with a piece of 3/4 plywood clamped in front. I only use it for .22s though. i 22 LR? 5/16" mild steel plate makes decent enough lifetime targets for 22lr...from point blank range out to however far you care to shoot at them. The 3/4" ply wood will simply stop bullet splatter and do nothing else. Well..it gives you something to staple targets to...shrug --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Most expensive steel
On 2017-10-19, Gunner Asch wrote:
On Wed, 18 Oct 2017 22:29:21 -0500, Ignoramus4513 wrote: On 2017-10-18, Gunner Asch wrote: Martin...what Thickness do I need for a front and back plate if I assemble it using A500 plate? 5.56 FMJ-3006 172gr FMJs I see a lot of hype on the various ads so I thought Id ask you. What would be a proper backing/under wear for those plates? Some sort of foam? Any idea how thick? Can I get raw plate and then use bed liner to coat the plates for antispalling? I have a target made of 3/4" steel plate, with a piece of 3/4 plywood clamped in front. I only use it for .22s though. i 22 LR? 5/16" mild steel plate makes decent enough lifetime targets for 22lr...from point blank range out to however far you care to shoot at them. The 3/4" ply wood will simply stop bullet splatter and do nothing else. Well..it gives you something to staple targets to...shrug Right , that is why there is this plywood. |
Most expensive steel
Interesting thread. Thanks for the replies!
|
Most expensive steel
I would go with 3/8" thick. Or margin with 1/2.
either will keep a 308 at 25 feet from more than a dimple. Martin On 10/18/2017 6:16 PM, Gunner Asch wrote: On Wed, 18 Oct 2017 16:30:06 -0500, Martin Eastburn wrote: On 10/18/2017 10:39 AM, Gunner Asch wrote: On Wed, 18 Oct 2017 06:55:58 -0500, Ignoramus4513 wrote: On 2017-10-18, Martin Eastburn wrote: If you buy metal from these and in little chunks you pay more and a lot more. I used to buy AR500 (expensive) by the 4x10' have it cut into 4 so I could carry it. 3/8" thick weighs like 1/2" A36. It is extremely dense and full of exotic metal. It is a registered product. (with the FBI). I bought mine from a MILL company. They barge the large sheets in and use 80' rail cars to tote them from the barge to their facility. Martin, composition wise, it is a steel with a little extra manganese and bits of nickel and moly, I cannot see how it should be so dense. https://www.google.com/url?sa=t&rct=...FVvEeVkL3 q0U Per cubic foot: Steel, Cast/Rolled 490.00 lbs Nickel 555.72 Manganese 463.10 Molybdenum 637.63 Martin AR 500 is far more complex than that. It contains secret amounts of many of the high end metals. Your Mang and Moly are in rows 4 and 5 along with Cr and Vanadium and Iron and Colbolt. Baby stuff for keeping out large bullets. Try atomic numbers 104 - 108, 58-60 and all of yours. Massive Atoms are Heavy. They also tend to stick together. e.g. U92 is near by and it takes a Boom to make it split apart. Hf (72) Hafnium is used as a source of electrons in Plasma torches. You add electrons to it and it showers that amount back to the tip. https://www.chapelsteel.com/ar500-ar500f.html https://www.chapelsteel.com/weight-steel-plate.html AR500 / AR500F AR500 and AR500F are quenched & tempered through hardened wear resistant grades of abrasion resistant steel plate used for severe impact and abrasion. Chapel Steel's premium grade of these products are Chapalloy 500 and Chapalloy 500F. Chapel Steel recommends the F chemistry in applications where there will be forming or higher impact. Mechanical Properties: Tensile: 247 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Yield: 187 ksi TYPICAL NOT INTENDED FOR STRUCTURAL USE Elongation: 11.1% in 8 Brinell: 450 min / 500 nominal Chapel also makes this : Chapalloy Armor Plate A proprietary ballistic steel plate which is through hardened, quenched and tempered and is guaranteed to meet various NIJ and UL specifications. Acceptance criteria is based on the specification desired and the thickness of the plate required to meet that standard. The Houston facility is mostly ship and offshore with armor car and fixing CAT machines..... Chapel at : LOCATIONS Philadelphia, PA Chicago, IL Birmingham, AL Houston, TX Portland, OR Hamilton, ON Cleveland, OH Martin Martin...what Thickness do I need for a front and back plate if I assemble it using A500 plate? 5.56 FMJ-3006 172gr FMJs I see a lot of hype on the various ads so I thought Id ask you. What would be a proper backing/under wear for those plates? Some sort of foam? Any idea how thick? Can I get raw plate and then use bed liner to coat the plates for antispalling? Thanks! Gunner --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
| All times are GMT +1. The time now is 12:50 AM. |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright 2004 - 2014 DIYbanter