Bright Round Bar Special Stainless Steel XM-13 Precipitation Hardening ASTM A564

XM-13 Precipitation Hardening Stainless Steel per ASTM A564 Bright Round Bar

PH 13-8 Mo is a precipitation hardening stainless steel that combines excellent strength, good toughness, and good general corrosion resistance. It is a through-hardening alloy, which allows it to be used in parts with large cross sections, where yield strengths in excess of 200 ksi. (1,380 MPa) may be required. Good transverse toughness properties are achieved by tight chemical composition control (to prevent the formation of delta phase), low carbon content (to minimize grain boundary precipitation), and double vacuum melting (to reduce alloy segregation). Since the rate of cooling from the solution temperature is not critical, large cross sections can be air-cooled. This alloy is produced by a primary vacuum induction melt process (VIM), followed by a consumable vacuum arc remelting (VAR) step. Typical uses are aircraft parts, rocket engine mounts, nuclear reactor parts, landing gear components, high performance shafts, and petrochemical parts that require high strength combined with good resistance to stress corrosion.

Chemical composition

Specifications

•  PLATE: AMS 5864, AMS 5629, ASTM-A-564, ASME-SA-564, ASTM-A-693, ASME-SA-693
•  SHEET: AMS 5864 ASTM-A-693(XM-13)
•  BAR: AMS 5629, ASTM-A-564, ASME-SA-564 ST0160LB0013, HMS 6-1105, DMS 2100

Equal grades

•  13-8 Mo
•  13-8PH
•  UNS S13800
•  XM-13
•  Vasco13-8
•  WNr 1.4534

Advantages

•  Excellent strength
•  Good toughness
•  Good general corrosion resistance
•  Good fabrication characteristics

Applications

•  Valve parts
•  Fittings 
•  Cold-headed and machined fasteners
•  Shafts 
•  Landing gear parts
•  Pins
•  Lockwashers
•  Aircraft components
•  Nuclear reactor components
•  Petrochemical applications

Forms of supply
Round bar, forging, plate, sheet, strip