Especially desirable when faced with severe impact, high-heat, and extreme wear conditions. Known to be tough and shock-resistant, 4340 is also capable of being oil-hardened to increase toughness, strength, and durability. Specially formulated for manufacturing forging equipment and tooling.
Optionally, 4140 can be purchased in the Pre-hardened (PH) condition with a higher Rockwell hardness rating. We offer annealing services to all customers purchasing 4140 burn-outs. In the Rockwell range of 28 – 32 (and higher through hardening.) Precision Grinding has an onsite furnace for Annealing. Especially suitable for tooling die and press plates. Annealing is recommended following Flame Cutting in order to improve machinability and to prevent stress cracks.ĪISI 4140 is suitable for heavy-duty service because of strength, high hardenability, good abrasive characteristics, and its impact resistance. 1045 steel can be heat-treated and hardened for increased durability. Chosen for general & non-critical structural parts.Ī medium hard steel often used for machine parts, for those machines that manufacture parts from ceramic, plastic, steel, other metals, and other composite materials. Easily ground, machined, and welded into fabrications. The additional strength may be purchased for a relatively low cost difference.ġ020 steel is a mild carbon steel denoted solely by a Chemistry specification. This alloy is often specified for various structural steel applications whenever durability and hardness demands are slightly greater than 36ksi ASTM A36. At 50ksi, a higher strength steel than A36. Recommended for riveted, bolted, or welded structures, such as Gussets and Bridge Plates, when intended for construction of bridges. Considered a mild steel due to hardness.Ī572 grade 50 steel plate is a high-strength, low-alloy plate, specified for bridges, higher strength structural duties, and light pressure vessel requirements. Very good welding properties along with 36ksi yield strength. Among the least expensive of the carbon steels. A36 plate is the highest demand hot-roll steel plate in the world, as engineers specify ASTM A36 for more structural steel fabrications than any other type of plate.
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