1.4923 Stainless Steels to DIN 17240 (1976)

1.4923 - Specification & Application

  • DIN 17240 (1976) - Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications
  • DIN EN 10088-1 - Stainless steels - Part 1: list of stainless steels
  • DIN EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
  • DIN EN 10302 (2002) - Creep resisting steels, nickel and cobalt alloys

DIN 17240 (1976) Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications; Replaced by: DIN EN 10269:1999

Chemical composition(wt.%) of 1.4923 grade: to DIN 17240 (1976)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.18 0.24
Si 0.10 0.50
Mn 0.30 0.80
P - 0.0350
S - 0.0350
Ni 0.30 0.80
Cr 11.0 12.50
Mo 0.80 1.20
V 0.25 0.35

1.4923 - Detail

DIN 17240 (1976) Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications; Replaced by: DIN EN 10269:1999

Mechanical properties of grade 1.4923 DIN 17240 (1976)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
671 (≥) 658 (≥) 31 24 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical properties of grade 1.4923 DIN 17240 (1976)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
687 (≥) 541 (≥) 12 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 211
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
823 289 314
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