A-487 Steel Castings Suitable for Pressure Service


This specification covers low-alloy steel and martensitic stainless steels in the normalized and tempered, or quenched and tempered conditions, suitable for pressure-containing parts. All castings shall receive the specified heat treatment requirement: austenitizing temperature, medium, quenching cool, and tempering temperature. Preliminary heat treatment and multiple tempering are permitted. Recording-type pyrometers shall be used to control the furnace temperature. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, vanadium, boron, and copper. Residual elements include: copper, nickel, chromium, tungsten, molybdenum, and vanadium. Tensile properties of the steel shall conform to the requirements for tensile strength, yield strength, elongation, reduction of area, hardness, and maximum thickness. Product analysis tolerance is specified. Repair by welding may be done.


A-487 Steel Castings Suitable for Pressure Service
Most Commonly Poured Grades Include:

400 Series Stainless Steel:
410, CA15, UNS# J91150
CA15M, UNS# J91151
420, CA40, UNS# J91153
CA6NM, UNS# J91540

Carbon, Low Alloy, Chrome:
4330, 10B, UNS# J23015

This is only a partial list of the grades listed in ASTM A-487

Available Forms

  • Centrifugal Castings
  • Pattern Casting