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Description

UK 1.4401 austenitic special steel and 1.4401 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 1.4401
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 1.4401 UK austenitic special steel
NCF800TP
NCF800TB
NCF800HTB
NCF800HTP
NCF825TB
NCF825TP
X2CrNiM0l7-12-2
1.4404
X2CrNiM0Nl7-11-2
1.4406

Chemical composition(mass fraction)(wt.%) of the 1.4401

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) N(%)
Max 0.070 Max 1.00 Max 2.00 Max 0.045 Max 0.015 16.5-18.5 10.0-13.0 2.00-2.50 Max 0.11

Mechanical Properties of steel grade 1.4401

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
519 (≥) 987 (≥) 33 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade 1.4401

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
23 - -     0.13 -  
569 971 - 32.3 131   -  
138 - 14 33.2   243 431

Heat Treatment of steel grade 1.4401

Heat treated : 1582°C - 1491°C

Technological Curves of steel grade 1.4401

Cross Reference Table (Equivalent Grade) of 1.4401

Grade Standard Country Application
1.4401 UK austenitic special steel
1.4401(AFNOR) AFNOR France Austenite

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