UNS S17600 (Alloy 635) Stainless Steel

Precipitation-Hardening Stainless Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus200GPa

Tensile Strength940MPa

Yield Strength580MPa

Brinell Hardness270HB

Maximum Service Temperature890°C

Weight Calculator

Chemical Composition

0 to 0.080%

16 to 17.5%

6.0 to 7.5%

0 to 1.0%

0 to 0.040%

0 to 0.030%

0.4 to 1.2%

0 to 0.4%

71.3 to 77.6%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

8.6 %

Fatigue Strength

300 MPa

Poisson's Ratio

0.28

Reduction in Area

50 %

Shear Modulus

76 GPa

Shear Strength

560 MPa

Tensile Strength: Ultimate (UTS)

940 MPa

Tensile Strength: Yield (Proof)

580 MPa

Hardness

Brinell Hardness

270

Rockwell C Hardness

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

550 °C

Maximum Temperature: Mechanical

890 °C

Melting Completion (Liquidus)

1430 °C

Melting Onset (Solidus)

1390 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

15 W/m-K

Thermal Diffusivity

4.1 mm 2 /s

Thermal Expansion

11 µm/m-K

Thermal Shock Resistance

31 points

Electrical

Electrical Conductivity: Equal Volume

2.3 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.7 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

70 MJ/m 3

Resilience: Unit (Modulus of Resilience)

850 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

34 points

Strength to Weight: Bending

28 points

Environmental

Base Metal Price

13 % relative

Embodied Carbon

2.9 kg CO 2 /kg material

Embodied Energy

42 MJ/kg

Embodied Energy

42 MJ/kg 18 x 10 3 BTU/lb

Embodied Water

130 L/kg

Embodied Water

130 L/kg 16 gal/lb

Registered Designations & Aliases

Alloy 635S17600UNS S17600 (Alloy 635) Stainless Steel

Standards

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

ASTM A693 ASTM A693: Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

ASTM A693 ASTM A693: Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip ASTM A564: Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels Corrosion of Stainless Steels, A. John Sedriks, 1996

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