ACI-ASTM CA6NM (J91540) Cast Stainless Steel

Martensitic Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus200GPa

Tensile Strength850MPa

Yield Strength620MPa

Brinell Hardness250HB

Maximum Service Temperature770°C

Weight Calculator

Chemical Composition

0 to 0.060%

11.5 to 14%

3.5 to 4.5%

0.4 to 1.0%

0 to 1.0%

0 to 0.040%

0 to 0.030%

78.4 to 84.6%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

17 %

Fatigue Strength

380 MPa

Poisson's Ratio

0.28

Reduction in Area

40 %

Shear Modulus

76 GPa

Tensile Strength: Ultimate (UTS)

850 MPa

Tensile Strength: Yield (Proof)

620 MPa

Hardness

Brinell Hardness

250

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

390 °C

Maximum Temperature: Mechanical

770 °C

Melting Completion (Liquidus)

1450 °C

Melting Onset (Solidus)

1400 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

25 W/m-K

Thermal Diffusivity

6.7 mm 2 /s

Thermal Expansion

10 µm/m-K

Thermal Shock Resistance

31 points

Electrical

Electrical Conductivity: Equal Volume

2.8 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.2 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

130 MJ/m 3

Resilience: Unit (Modulus of Resilience)

1000 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

30 points

Strength to Weight: Bending

26 points

Environmental

Base Metal Price

10 % relative

Embodied Carbon

2.5 kg CO 2 /kg material

Embodied Energy

34 MJ/kg

Embodied Energy

34 MJ/kg 15 x 10 3 BTU/lb

Embodied Water

110 L/kg

Embodied Water

110 L/kg 13 gal/lb

Registered Designations & Aliases

ACI-ASTM CA6NM (J91540) Cast Stainless SteelJ91540

Standards

ASTM A352 ASTM A352: Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service

ASTM A356 ASTM A356: Standard Specification for Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walled for Steam Turbines

ASTM A356 ASTM A356: Standard Specification for Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walled for Steam Turbines ASTM A352: Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service ASTM A743: Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012 Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Corrosion of Stainless Steels, A. John Sedriks, 1996

ASTM A743 ASTM A743: Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application