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30CrNiMo8

Description

France AFNOR NF EN 10083-1, NF EN 10083-3, NF EN 10250-3, NF EN 10269, NF EN 10297-1, 30CrNiMo8 Specialsteel Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 30CrNiMo8
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 30CrNiMo8 AFNOR France Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes

Chemical composition(mass fraction)(wt.%) of the 30CrNiMo8

C Si Mn P S Cr Ni Mo
0.26 -0.34 ≤0.40 0.30 -0.60 ≤0.035 ≤0.035 1.80 -2.20 1.80 -2.20 0.30 -0.50

Mechanical Properties of steel grade 30CrNiMo8

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)
333 (≥) 446 (≥) 42 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 30CrNiMo8

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
41 - -     0.11 -  
181 827 - 33.3 222   -  
343 - 42 44.2   441 343

Heat Treatment of steel grade 30CrNiMo8

Heat treated : 1445°C - 1879°C

Technological Curves of steel grade 30CrNiMo8

Cross Reference Table (Equivalent Grade) of 30CrNiMo8

Grade Standard Country Application
30CrNiMo8
30CrNiMo8
30CrNiMo8

Relevant standard of 30CrNiMo8

NF EN 10083-1 Steels for quenching and tempering - Part 1: General technical delivery conditions NF-EN-10083-1.pdf
NF EN 10083-3 Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels NF-EN-10083-3.pdf
NF EN 10250-3 Open die steel forgings for general engineering purposes - Part 3: Alloy special steels NF-EN-10250-3.pdf
NF EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties NF-EN-10269.pdf
NF EN 10297-1 Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes NF-EN-10297-1.pdf

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