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30 ChNML

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Bulgaria BDS 30ChNML Low alloyed steel castings. Designations and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30ChNML / 30 ChNML
Category Grade Standard Region/Area Standard Content
Metals 30 ChNML BDS 6550 Bulgaria Low alloyed steel castings. Designations

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

Element Min Max Similar

Mechanical Properties of steel grade 30 ChNML

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)
749 (≥) 973 (≥) 12 34 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade 30 ChNML

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
24 - -     0.44 -  
995 239 - 11.3 422   -  
723 - 24 31.2   112 144

Heat Treatment of steel grade 30 ChNML

Heat treated : 1482°C - 1688°C

Technological Curves of steel grade 30 ChNML

Cross Reference Table (Equivalent Grade) of 30 ChNML

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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