AISI 422 / S42200 / 1.4935 SS 422 Stainless Steel Bar

Alloy 422 is a hardenable stainless steel designed for use at temperatures of up to 1200ºF (649ºC). Alloy 422 has good resistance to scaling and oxidation. Through heat treatment, high mechanical properties can be developed. Alloy 422 is used in applications such as compressors or steam turbines and also in aircraft parts, valves, high temperature bolting etc.

Specifications

UNS S42200
AISI 616
AMS 5655 Bars / wire/ forging H&T
ASTM A 565 GRD 616
DOD F 24669/7
MIL S 861
B50A125 (Cap of)
B50A951A1 (Cap of)
BS 970; 442S19
EN61

UNS: ASTM/ASTE 42200

DIN: 1.4935

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

Availability
AISI – 422 / 616 IS AVAILABLE IN ALL THE BELOW SHAPES AND SIZES :

• ROUNDS : DIA 12 – 400 M.M
• SQUARE : 16 – 200 M.M
• HEX : 16 – 200 M.M
• PIPE : 16 OD – 400 OD X ANY ID
• FLAT : 16 X 12 – 300 X 200 M.M

Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.

Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering any other conditions based on the customer’s requirement Surface conditions: scaled (hot working finished)/ground/rough machining/fine machining based on the customer’s special requirements.

Furnaces for metallurgical processing: EAF + LF/ VD/ VOD/ AOD/ ESR/Vacuum consumable electrode.

Ultrasonic inspection: 100% ultrasonic inspection for any inperfection or based on the customer’s requirement.

Excellent service for all kinds of industries With advantages of technologies, equipment and price strategy.

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.

Typical Mechanical Properties (Room Temperature)

Thermal Properties

The thermal properties of grade 422 stainless steel are given in the following table.

General Properties

With better strength at higher temperatures, Type 422 (S42200) is an appealing alternative to Type 403.  Type 422 is a hardenable martensitic stainless steel which is being widely used for high temperatures up to 1200°F. It is capable of being heat treated to various high strength levels. It is often used in aircraft and power industries who require high strength/weight ratios from room temperature to 1200°F.

Corrosion Resistance:

• Adaptable to applications where maximum resistance to corrosion is not required.
• Resistant to the corrosive action of the atmosphere, fresh water, steam, and a variety of the milder acids and alkalies.

Oxidation Resistance:

• Good resistance to destructive scaling or oxidation
• Continuous service at temperatures up to 1250F.
• Temperature will vary with the type of atmosphere, type of construction, and cycle of operation.

Workability

• Initial forging and rolling at 2100° to 2150°F (1149° to 1177°C)
• 1700°F (927°C) minimum to hot work

  Mechanical properties

AISI Type 422 (DIN 1.4935) Mechanical properties,Our production completely according to the AISI Type 422 (DIN 1.4935) standards to meet the AISI Type 422 (DIN 1.4935) mechanical performance, can also according to the customer request, to meet the requirements of customers of AISI Type 422 (DIN 1.4935) mechanical properties.

Heat treatment

AISI Type 422 (DIN 1.4935) Heat treatment,Our production completely according to the AISI Type 422 (DIN 1.4935) standards to meet the AISI Type 422 (DIN 1.4935) Heat treatment, can also according to the customer request, to

meet the requirements of customers of AISI Type 422 (DIN 1.4935) Heat treatment.

• To anneal, heat to 1600° to 1650°F (871° to 899°C), then slowly cool in furnace
• For stress relief, heat to 1100° to 1150°F (593° to 621°C) before furnace or air cooling
• Harden by heating to 1875° to 1925°F (1024° to 1052°C) before oil quenching and tempering

Machining
AISI Type 422 (DIN 1.4935) Machining,Our production completely according to the AISI Type 422 (DIN 1.4935) standards to meet the AISI Type 422 (DIN 1.4935) Machining, can also according to the customer request, to meet the requirements of customers of AISI Type 422 (DIN 1.4935) Machining.

• Comparable to 18-8 but easier to machine
• Help avoid galling with sharply ground tools
• Maintain consistent speed and feed
• Turning tools: 8-14° side rake
• Drilling: 140° point
• Threading: grind tools with 10-15° back rake
• Cobalt high-speed tools: turn at 90-120 sfpm, drill at 40-75 sfpm, mill at 70-120 sfpm, ream at 20-60 sfpm, roughing and finishing at 200-400 sfpm

Welding performance

AISI Type 422 (DIN 1.4935) Welding performance,Our production completely according to the AISI Type 422 (DIN 1.4935) standards to meet the AISI Type 422 (DIN 1.4935) Welding performance, can also according to the customer request, to meet the requirements of customers of AISI Type 422 (DIN 1.4935) Welding performance.

Applications

• jet engine parts
• brackets
• disks
• bolts
• blades fasteners
• aircraft components
• Parts for steam and gas turbines
• Engines
• High heat components
• Rotors