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steel
Steel is an alloy of iron and other elements, primarily carbon, that is widely used in construction and other applications because of its high tensile strength and low cost. Steel's base metal is iron, which is able to take on two crystalline forms (allotropic forms), body centered cubic (BCC) and face centered cubic (FCC), depending on its temperature. It is the interaction of those allotropes with the alloying elements, primarily carbon, that gives steel and cast iron their range of unique properties. In the body-centred cubic arrangement, there is an iron atom in the centre of each cube, and in the face-centred cubic, there is one at the center of each of the six faces of the cube. Carbon, other elements, and inclusions within iron act as hardening agents that prevent the movement of dislocations that otherwise occur in the crystal lattices of iron atoms.
The carbon in typical steel alloys may contribute up to 2.1% of its weight. Varying the amount of alloying elements, their presence in the steel either as solute elements, or as precipitated phases, retards the movement of those dislocations that make iron comparatively ductile and weak, and thus controls its qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steel's strength compared to pure iron is only possible at the expense of iron's ductility, of which iron has an excess.
Steel was produced in bloomery furnaces for thousands of years, but its extensive use began after more efficient production methods were devised in the 17th century, with the production of blister steel and then crucible steel. With the invention of the Bessemer process in the mid-19th century, a new era of mass-produced steel began. This was followed by Siemens-Martin process and then Gilchrist-Thomas process that refined the quality of steel. With their introductions, mild steel replaced wrought iron.
Further refinements in the process, such as basic oxygen steelmaking (BOS), largely replaced earlier methods by further lowering the cost of production and increasing the quality of the product. Today, steel is one of the most common materials in the world, with more than 1.3 billion tons produced annually. It is a major component in buildings, infrastructure, tools, ships, automobiles, machines, appliances, and weapons. Modern steel is generally identified by various grades defined by assorted standards organizations.
For sale is a CZ75B Omega, a full steel, ambidextrous, DA/SA, double stack, 9x19mm pistol.
I love CZ pistols, but I need to slim down my handgun collection in order to fund rifle projects.
500 rounds fired
Never carried
Comes with original CZ Box
FFLs near Portland, Oregon only
I have 10 C-Products defense 30 round AR mags for sale. These are stainless steel mags not aluminum. They have orange anti-tilt followers.
7 are still new in the wrapper, 3 have been taken out and only used once. Only selling all 10 at once.
Going for $120 shipped, pm if interested.
No longer a hunter, so these need a better home. The Remington is 20ga. $10.00 per box. Trades would be other ammo: 5.56, .223, 9mm, .45acp or 12ga buck.
I have a literally BRAND NEW 14x11" Tactical Scorpion III+ Curved Swimmer Cut Build-up Coated AR500 steel plate that is sadly too big for my carrier, I need to trade for an equivalent 12x10" plate. Cost of the plate was $124, just FYI
Thank you!
Shoot like a warrior. The target trains you to focus on the three primary areas of vulnerability on the body: The Head, Heart and Pelvis. Or as any modern warrior or shootist would state: The Electrical, Hydraulic, and Chassis kill areas. Our most challenging tactical target yet, The Spartan™...
I have 5 (used but freshly painted) steel GI magazines that I will fill with ammo. 3 are Kay, 1 is FN, 1 is CMMG. Prices are firm. No trades currently. Ftf or buyer pays full shipping cost.
150rnds Winchester 55gr in mags = $100 OR
100rnds Federal 62gr grn tip in mags = $100 OR
150rnds Federal...
This is a partially used pound of Alliant Steel powder (13.7oz). It has been stored in proper condition, and thought someone may get some use out of it cause of all these shortages.
$15
For sale is a brand new, primed, 3/8th thick AR 500 Steel Target. Perfect for shooting rifle and pistol at. Just buy an appropriate mount and you're good to go. Rings loud, and will take thousands of rounds. Bought a few of these, and have this one extra. Here is one of my favorite hangers to...
I picked this up new earlier in the year and stored it away until now whilst going through a decluttering phase, so this is LNIB.
Features:
Two (2) AR500 steel Level III plates.
Dual pockets.
Fully adjustable shoulder straps from small to XX large.
Rated for up to six (6) hits from 7.62㎜...
very very clean Henry Big Boy Steel. Lower round count. I just picked this up not too long ago as a bare rifle to turn into a brush gun. However, im moving and the safe could use a lighten. Has a brand new Henry rail, i will give you the original flat top receiver screws. Brand new Sightmark...
Selling a set of CZ steel scope rings for 550/555 models. These are hard to find for under $100 and most places are no longer allowed to import them for US sale. Very heavy duty, and appear to be used very little, if at all. For one inch diameter scope tubes.
I have a brand new, never used, 2020 Benchmade Gold Class Mini Crooked River. It comes with box, bag, and all documentation. Benchmade just released this knife a couple days ago and it is selling for $800. please text me if interested. 503-754-0787.
Selling M1 Carbine Mags: 2x 15rds (WW2 GI), 1x 30rds, (Commercial NIB) 1x 15rds mag body only (WW2 GI).
Cash is king but I would also trade for 150rds of .38 special/.357 mag, 200rds of 9mm, 80rds .303 Brit, 200rds 7.62x39, 125rds 7.62x54r, Vickers Blue Force 2 point sling + 50rds of 9mm.)...
For sale is a lightly used Sig Sauer P320 XCarry 9mm 2 Tone with Steel Slide. Comes with Box, books, lock and 2 17 round magazines. Pistol will accept the Sig Romeo1 Red Dot. I am the original owner. Pistol was manufactured in February of 2019.
Buyer pays transfer fee and background check at...
I'm selling several cases of Kent Fasteel 20 Gauge #3 waterfowl Shotshells - K203ST24-3. Kent's Fasteel Steel shotshells is the choice for duck and goose hunters across the US, Canada and beyond.
20 Gauge
Length: 3 inch
#3
Weight: 7/8 oz
Velocity: 1550 fps
Rounds Per Box: 25
Boxes Per Case: 10...
** Sale pending
CZ-75 SP 01 with Meprolight Tru Dot tritium night sights. 2 18 round magazines, factory box, 2 18 round magazines
I have somewhere in the neighborhood of 500 rounds through this thing, and it's one of the best shooting pistols I've ever handled. Mainly selling it so I'll stop...
For sale is a complete Level III+ Steel Body Armor set made of AR550 by Spartan Armor Systems. Consists of 2 front and back 12x10" multi-curve contoured plates with buildup anti-spall coating, and 2 smaller 6x6 side plates for extra protection. Comes with a carrier, complete with both...
Brand new... never even tried on...
Timberland 'Rigmaster' Steel Toe Boots.
SIZE: 10.5
$140
$130 for Supporting Members
Trades?
Hera CQR, fde
Complete 556 bcg
Located in Vancouver, can meet in Portland some days... no shipping
Hey Folks,
I have a set of Level IIIA Curved Steel plates from AR500 Armor. I purchased these plates new in 2014 and they've been sitting in a plate carrier indoors for the past few years. Really great condition. They are ultra thin (0.2"....see the picture next to a Quarter) and very light...