astm 4140 quanching and tempering alloy steel round bar Related introduction

  1. Standard Specification for Steel Bars, Alloy, Hot …

    Standard Specification for Steel Bars, Alloy, Hot-Wrought or Cold-Finished, Quenched and Tempered1 This standard is issued under the fixed designation A 434; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

  2. Through-Hardening Low Alloy Steel Bar 4340

    Through-Hardening Low Alloy Steel Bar 4340 Colour code: Jade (Band) - Marigold Introduction Atlas 4340 is a nominally 1.8 percent Nickel Chromium Molybdenum low alloy steel of high hardenability, with high strength and toughness in relatively large sections achieved with a "quench-and-temper

  3. Speedy Metals Information for 4140 Hot Roll Rounds Annealed

    4140 HRA is a chromium-molybdenun alloy steel that can be oil hardened to relatively high hardenability. The chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. ... 4140 hot roll bars conforms to ASTM A322; ASTM A331; ASTM A304. ... 4140 has a hardening range of 1525° -1625 ...

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