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TH1050 Hardened S17700 Stainless Steel

TH1050 hardened S17700 stainless steel is S17700 stainless steel in the hardened (H) condition. The graph bars on the material properties cards below compare TH1050 hardened S17700 stainless steel to: wrought precipitation-hardening stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

390

Elastic (Young's, Tensile) Modulus

200 GPa 28 x 106 psi

Elongation at Break

5.9 %

Fatigue Strength

510 MPa 73 x 103 psi

Poisson's Ratio

0.28

Reduction in Area

28 %

Rockwell C Hardness

41

Shear Modulus

76 GPa 11 x 106 psi

Shear Strength

740 MPa 110 x 103 psi

Tensile Strength: Ultimate (UTS)

1270 MPa 180 x 103 psi

Tensile Strength: Yield (Proof)

1040 MPa 150 x 103 psi

Thermal Properties

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

410 °C 770 °F

Maximum Temperature: Mechanical

890 °C 1640 °F

Melting Completion (Liquidus)

1440 °C 2620 °F

Melting Onset (Solidus)

1400 °C 2550 °F

Specific Heat Capacity

480 J/kg-K 0.12 BTU/lb-°F

Thermal Conductivity

15 W/m-K 8.9 BTU/h-ft-°F

Thermal Expansion

11 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.3 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.7 % IACS

Otherwise Unclassified Properties

Base Metal Price

13 % relative

Density

7.7 g/cm3 480 lb/ft3

Embodied Carbon

2.8 kg CO2/kg material

Embodied Energy

40 MJ/kg 17 x 103 BTU/lb

Embodied Water

150 L/kg 17 gal/lb

Common Calculations

PREN (Pitting Resistance)

17

Resilience: Ultimate (Unit Rupture Work)

71 MJ/m3

Resilience: Unit (Modulus of Resilience)

2770 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

46 points

Strength to Weight: Bending

34 points

Thermal Diffusivity

4.1 mm2/s

Thermal Shock Resistance

42 points

Alloy Composition

Iron (Fe)Fe 70.5 to 76.8
Chromium (Cr)Cr 16 to 18
Nickel (Ni)Ni 6.5 to 7.8
Aluminum (Al)Al 0.75 to 1.5
Manganese (Mn)Mn 0 to 1.0
Silicon (Si)Si 0 to 1.0
Carbon (C)C 0 to 0.090
Phosphorus (P)P 0 to 0.040
Sulfur (S)S 0 to 0.030

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

ASTM A564: Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes

ASTM A276: Standard Specification for Stainless Steel Bars and Shapes

Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005

ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993

Corrosion of Stainless Steels, A. John Sedriks, 1996

ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994

Advances in Stainless Steels, Baldev Raj et al. (editors), 2010

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015