AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel

AISI 422, 1.4935, AISI 616, Alloy 616, X20CrMoWV12-1 Martensitic Stainless Steel, Creep resisting Steel acc. to EN 10088-3 and EN 10302 Spec.

#422 #616 #X20CrMoWV12 #1.4935

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AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel - Introduction and Application

AISI 422 Creep resistant steel used for thermal engine components in power plants, use turbine blades, fasteners as. Hardenable. Max temperature for continous operating is 580°C. Cr-Ni steel with an austenitic structure with carbides. AISI 616 Alloying additions of Mo, V and W increase the melting temperature, thus having a positive effect on creep resistance.

Melted process

ESR

AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel - Chemical composition WT %

GradeChemical composition WT %
CSiMnPSCrMoNiVWCu
1.4935, X20CrMoWV12-10.17-0.240.1-0.50.3-0.8Max 0.025Max 0.01511.0-12.50.8-1.20.3-0.80.25-0.350.4-0.6-
SUH 6160.20-0.25Max 0.50.5-1.0Max 0.04Max 0.0311.0-13.00.75-1.250.5-1.00.2-0.30.75-1.25Max 0.3
AISI 422, AISI 616, S422000.20-0.25Max 0.75Max 1.0Max 0.04Max 0.0311.0-12.50.75-1.250.5-1.00.15-0.300.75-1.25Max 0.5

Mechanical Property of AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel

Creep limit for max elongation 0.2% Rp0.2 - high temperature test:

  • Testing temperature: 400 °C - > 420 MPa
  • Testing temperature: 500 °C - > 335 MPa

Mechanical properties of +QT700 class forgings:

  • Ambient temperature: 
    • Re: > 500 MPa
    • Rm: 700-850 MPa
    • A: 15 %
  • Yield strength Re in high temperature: 
    • Testing temperature: 50 °C - > 465 MPa
    • Testing temperature: 100 °C - > 460 MPa
    • Testing temperature: 150 °C - > 445 MPa
    • Testing temperature: 200 °C - > 430 MPa
    • Testing temperature: 250 °C - > 415 MPa
    • Testing temperature: 300 °C - > 390 MPa
    • Testing temperature: 350 °C - > 380 MPa
    • Testing temperature: 400 °C - > 360 MPa
    • Testing temperature: 450 °C - > 330 MPa
    • Testing temperature: 500 °C - > 290 MPa
    • Testing temperature: 550 °C - > 250 MPa

Mechanical properties of +QT800 class forgings:

  • Ambient temperature: 
    • Re: > 600 MPa
    • Rm: 800-950 MPa
    • A: 14 %
  • Yield strength Re in high temperature: 
    • Testing temperature: 50 °C - > 585 MPa
    • Testing temperature: 100 °C - > 560 MPa
    • Testing temperature: 150 °C - > 545 MPa
    • Testing temperature: 200 °C - > 530 MPa
    • Testing temperature: 250 °C - > 505 MPa
    • Testing temperature: 300 °C - > 480 MPa
    • Testing temperature: 350 °C - > 450 MPa
    • Testing temperature: 400 °C - > 420 MPa
    • Testing temperature: 450 °C - > 380 MPa
    • Testing temperature: 500 °C - > 335 MPa
    • Testing temperature: 550 °C - > 280 MPa

Physical Property of AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel

  • Density: 7.7 g/cm3
  • Linear expansion coefficient: 10.5-12.5 *10-6m/(m*K)
  • Thermal conductivity: 24 W/(m*K)
  • Specific heat capacity: 460 J/(kg*K)
  • Young's modulus: 216 GPa
  • Electrical resistivity: 0.6 µΩ*m
  • Tensile strength Rm: > 600 MPa
  • Creep limit for max elongation 0.2% Rp0.2: > 800 MPa
  • Creep-rupture strength Ru: > 275 MPa; 500°C; 100000 h

Heat Treatment of AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel

Quenching: 1020-1070 °C 

Tempering: 680-780 °C


Welding of AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel

The steel is hard to welding

Equivalent grades of AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel

AISI 422, AISI 616, S42200, SUH616, 1.4935, X22CrMoWV12-1, Grade 616

AISI 422, AISI 616, Alloy 616, 1.4935, X20CrMoWV12-1 Martensitic Stainless Steel Martensitic & Precipitation hardened stainless steel stock list

Grade Shape Dimensionmm Qty.kg
616 Round bar Φ55mm 1180
616 ESR ingot 35000

Steel grade

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Special steel

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