SAE-AISI 4130 (SCM430, G41300) Cr-Mo Steel

Alloy Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus190GPa

Tensile Strength530MPa

Yield Strength460MPa

Brinell Hardness220HB

Maximum Service Temperature420°C

Weight Calculator

Chemical Composition

0.28 to 0.33%

0.8 to 1.1%

0.15 to 0.25%

0.4 to 0.6%

0.15 to 0.35%

0 to 0.035%

0 to 0.040%

97.3 to 98.2%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

22 %

Fatigue Strength

320 MPa

Poisson's Ratio

0.29

Shear Modulus

73 GPa

Shear Strength

340 MPa

Tensile Strength: Ultimate (UTS)

530 MPa

Tensile Strength: Yield (Proof)

460 MPa

Hardness

Brinell Hardness

220

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

420 °C

Melting Completion (Liquidus)

1460 °C

Melting Onset (Solidus)

1420 °C

Specific Heat Capacity

470 J/kg-K

Thermal Conductivity

43 W/m-K

Thermal Diffusivity

12 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

16 points

Electrical

Electrical Conductivity: Equal Volume

7.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.3 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

110 MJ/m 3

Resilience: Unit (Modulus of Resilience)

560 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

19 points

Strength to Weight: Bending

19 points

Environmental

Base Metal Price

2.4 % relative

Embodied Carbon

1.5 kg CO 2 /kg material

Embodied Energy

20 MJ/kg

Embodied Energy

20 MJ/kg 8.4 x 10 3 BTU/lb

Embodied Water

50 L/kg

Embodied Water

50 L/kg 6.0 gal/lb

Registered Designations & Aliases

G41300SAE-AISI 4130 (SCM430, G41300) Cr-Mo SteelSCM430

Standards

ASTM A322 ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades

ASTM A752 ASTM A752: Standard Specification for General Requirements for Wire Rods and Coarse Round Wire, Alloy Steel

ASTM A752 ASTM A752: Standard Specification for General Requirements for Wire Rods and Coarse Round Wire, Alloy Steel ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades