SAE-AISI 94B17 (G94171) Boron Steel

Alloy Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus190GPa

Tensile Strength440MPa

Yield Strength270MPa

Brinell Hardness130HB

Maximum Service Temperature410°C

Weight Calculator

Chemical Composition

0.15 to 0.2%

0.3 to 0.5%

0.3 to 0.6%

0.080 to 0.15%

0.75 to 1.0%

0.15 to 0.35%

0 to 0.035%

0 to 0.040%

0.00050 to 0.0030%

97.1 to 98.3%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

25 %

Fatigue Strength

200 MPa

Poisson's Ratio

0.29

Shear Modulus

73 GPa

Shear Strength

280 MPa

Tensile Strength: Ultimate (UTS)

440 MPa

Tensile Strength: Yield (Proof)

270 MPa

Hardness

Brinell Hardness

130

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

410 °C

Melting Completion (Liquidus)

1460 °C

Melting Onset (Solidus)

1420 °C

Specific Heat Capacity

470 J/kg-K

Thermal Conductivity

39 W/m-K

Thermal Diffusivity

10 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

13 points

Electrical

Electrical Conductivity: Equal Volume

7.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.3 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

96 MJ/m 3

Resilience: Unit (Modulus of Resilience)

200 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

16 points

Strength to Weight: Bending

16 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 8.5 x 10 3 BTU/lb

Embodied Water

49 L/kg

Embodied Water

49 L/kg 5.9 gal/lb

Registered Designations & Aliases

G94171SAE-AISI 94B17 (G94171) Boron Steel

Standards

ASTM A29 ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

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 Boron in Steel, S. K. Banerji and J. E. Morral (editors), 1980 ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993