A 955 XM-29 Grade 40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 955 XM-29 Grade 40

SAE A 955 XM-29 Grade 40

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This page is mainly introduced the A 955 XM-29 Grade 40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 955 XM-29 Grade 40,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A 955 XM-29 Grade 40

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn 11.5  14.5
P   0.06
S   0.03
Cr 17.0  19.0
Ni 2.25  3.75
N 0.20  0.40

Mechanical Properties

Tensile strength 508~003 σb/MPa
Yield Strength 799 σ 0.2 ≥/MPa
Elongation 99 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 195~491 -
HRC 30 -

Physical Properties

Thermal expansion 65-07 e-6/K
Thermal conductivity 30-97 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7674-1506 째C
Density 4081-1777 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
A 955 XM-29 Grade 40 Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download