EN 1.4938 (X12CrNiMoV12-3) Stainless Steel

Other Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus200GPa

Tensile Strength870MPa

Yield Strength640MPa

Brinell Hardness270HB

Maximum Service Temperature750°C

Weight Calculator

Chemical Composition

0.080 to 0.15%

11 to 12.5%

2.0 to 3.0%

1.5 to 2.0%

0.4 to 0.9%

0 to 0.5%

0.020 to 0.040%

0 to 0.025%

0 to 0.015%

0.25 to 0.4%

80.5 to 84.8%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

17 %

Fatigue Strength

390 MPa

Poisson's Ratio

0.28

Shear Modulus

76 GPa

Shear Strength

540 MPa

Tensile Strength: Ultimate (UTS)

870 MPa

Tensile Strength: Yield (Proof)

640 MPa

Hardness

Brinell Hardness

270

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

270 J/g

Maximum Temperature: Corrosion

390 °C

Maximum Temperature: Mechanical

750 °C

Melting Completion (Liquidus)

1460 °C

Melting Onset (Solidus)

1420 °C

Specific Heat Capacity

470 J/kg-K

Thermal Conductivity

30 W/m-K

Thermal Diffusivity

8.1 mm 2 /s

Thermal Expansion

11 µm/m-K

Thermal Shock Resistance

30 points

Electrical

Electrical Conductivity: Equal Volume

2.9 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.3 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

140 MJ/m 3

Resilience: Unit (Modulus of Resilience)

1050 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

31 points

Strength to Weight: Bending

26 points

Environmental

Base Metal Price

10 % relative

Embodied Carbon

3.3 kg CO 2 /kg material

Embodied Energy

47 MJ/kg

Embodied Energy

47 MJ/kg 20 x 10 3 BTU/lb

Embodied Water

110 L/kg

Embodied Water

110 L/kg 13 gal/lb

Registered Designations & Aliases

1.49381.4938EN 1.4938 (X12CrNiMoV12-3) Stainless SteelX12CrNiMoV12-3X12CrNiMoV12-3

Standards

EN 10088-1 EN 10088-1: 2005 Stainless steels. List of stainless steels

EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels

EN 10269 EN 10269: 1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

EN 10269 EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

EN 10302 EN 10302: 2008 Creep resisting steels, nickel and cobalt alloys

EN 10302 EN 10302: Creep resisting steels, nickel and cobalt alloys

EN 10302 EN 10302: Creep resisting steels, nickel and cobalt alloys EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016 Creep-Resistant Steels, Fujio Abe et al. (editors), 2008 EN 10088-1: Stainless steels - Part 1: List of stainless steels Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012 Corrosion of Stainless Steels, A. John Sedriks, 1996