422 , S42200, AISI 616 , B4B, 12-14% Cr MARTENSITIC STAINLESS

Description

422 is a hardenable martensitic stainless steel which is being widely used for high temperatures up to 1200°F. It has excellent creep-rupture properties in the range of 600/1200°F and is capable of being heat treated to various high strength levels depending on section, form, and application involved. Crucible 422 offers designers in the aircraft and power industries high strength/weight ratios from room temperature to 1200°F. The composition is carefully balanced to provide a microstructure which is virtually all tempered martensite after heat treatment. This structure assures uniformity of mechanical properties with a minimum of directionality.

Applications

jet engine parts, brackets, disks, bolts, blades fasteners, aircraft components. Parts for steam and gas turbines, engines.

Specifications

UNS# S42200 422 , AISI 616 , B4B HNV8 MARTENSITIC Cr STAINLESS
UNS# S42201 422 SUPERSTRENGTH 52 MARTENSITIC Cr SUPER STRENGTH STEEL

AMS 5655D 422 BARS, WIRE, AND FORGINGS
ASTM A-437 ( GRADE B4B) ALLOY STEEL TURBINE TYPE BOLTING MATERIAL SPECIALLY HEAT TREATED FOR HIGH TEMPERATURE SERVICE, TYPICALL NOT STOCKED, MOSTLY FORGED PRODUCTS
ASTM A-565 ( GRADE 616 ) BARS, FORGINGS & FORGING STOCK FOR HIGH TEMP. SERV,
ASTM A-579 (SUPERSTRENGTH 52) FORGINGS
SAE J467 SPECIAL PURPOSE ALLOYS "SUPERALLOYS" (422)
SAE J775 ENGINE POPPET VALVE INFORMATION

Available Forms

• Bar
• Forge