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H850 Hardened S35500 Stainless Steel

H850 hardened S35500 stainless steel is S35500 stainless steel in the hardened (H) condition. The graph bars on the material properties cards below compare H850 hardened S35500 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

Elastic (Young's, Tensile) Modulus

200 GPa 29 x 106 psi

Elongation at Break

14 %

Fatigue Strength

730 MPa 110 x 103 psi

Poisson's Ratio

0.28

Rockwell C Hardness

33

Shear Modulus

78 GPa 11 x 106 psi

Shear Strength

910 MPa 130 x 103 psi

Tensile Strength: Ultimate (UTS)

1490 MPa 220 x 103 psi

Tensile Strength: Yield (Proof)

1280 MPa 190 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

440 °C 830 °F

Maximum Temperature: Mechanical

870 °C 1610 °F

Melting Completion (Liquidus)

1460 °C 2660 °F

Melting Onset (Solidus)

1420 °C 2580 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

16 W/m-K 9.5 BTU/h-ft-°F

Thermal Expansion

11 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.5 % IACS

Otherwise Unclassified Properties

Base Metal Price

16 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

3.5 kg CO2/kg material

Embodied Energy

47 MJ/kg 20 x 103 BTU/lb

Embodied Water

130 L/kg 16 gal/lb

Common Calculations

PREN (Pitting Resistance)

27

Resilience: Ultimate (Unit Rupture Work)

190 MJ/m3

Resilience: Unit (Modulus of Resilience)

4100 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

53 points

Strength to Weight: Bending

37 points

Thermal Diffusivity

4.4 mm2/s

Thermal Shock Resistance

49 points

Alloy Composition

Iron (Fe)Fe 73.2 to 77.7
Chromium (Cr)Cr 15 to 16
Nickel (Ni)Ni 4.0 to 5.0
Molybdenum (Mo)Mo 2.5 to 3.2
Manganese (Mn)Mn 0.5 to 1.3
Niobium (Nb)Nb 0.1 to 0.5
Silicon (Si)Si 0 to 0.5
Carbon (C)C 0.1 to 0.15
Nitrogen (N)N 0.070 to 0.13
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 A693: Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

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

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