UNS S45500 (Alloy 455, XM-16) Stainless Steel

Precipitation-Hardening Stainless Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.9g/cm³

Elastic Modulus190GPa

Tensile Strength1370MPa

Yield Strength1240MPa

Brinell Hardness280HB

Maximum Service Temperature760°C

Weight Calculator

Chemical Composition

0 to 0.050%

11 to 12.5%

7.5 to 9.5%

0 to 0.5%

0 to 0.040%

0 to 0.030%

1.5 to 2.5%

0 to 0.5%

0.8 to 1.4%

0 to 0.5%

71.5 to 79.2%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

3.4 %

Fatigue Strength

570 MPa

Poisson's Ratio

0.28

Shear Modulus

75 GPa

Shear Strength

790 MPa

Tensile Strength: Ultimate (UTS)

1370 MPa

Tensile Strength: Yield (Proof)

1240 MPa

Hardness

Brinell Hardness

280

Rockwell C Hardness

Physical

Density

7.9 g/cm 3

Thermal

Latent Heat of Fusion

270 J/g

Maximum Temperature: Corrosion

620 °C

Maximum Temperature: Mechanical

760 °C

Melting Completion (Liquidus)

1440 °C

Melting Onset (Solidus)

1400 °C

Specific Heat Capacity

470 J/kg-K

Thermal Expansion

11 µm/m-K

Thermal Shock Resistance

48 points

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

45 MJ/m 3

Resilience: Unit (Modulus of Resilience)

4000 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

48 points

Strength to Weight: Bending

35 points

Environmental

Base Metal Price

17 % relative

Embodied Carbon

3.8 kg CO 2 /kg material

Embodied Energy

57 MJ/kg

Embodied Energy

57 MJ/kg 24 x 10 3 BTU/lb

Embodied Water

120 L/kg

Embodied Water

120 L/kg 14 gal/lb

Registered Designations & Aliases

Alloy 455S45500UNS S45500 (Alloy 455, XM-16) Stainless SteelXM-16

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 Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012 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

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