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DD12

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China 首钢Q/SG DD12 冷成型用低碳钢热连轧钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DD12 / DD12
Category Grade Standard Region/Area Standard Content
Metals DD12 Q/SGZGS 314 China 冷成型用低碳钢热连轧钢板和钢带

Chemical composition(mass fraction)(wt.%) of the DD12

Element Min Max Similar
C - 0.0800 -
Si - 0.0500 -
Mn - 0.5000 -
P - 0.0300 -
S - 0.0250 -
Alt 0.0100 - -

Mechanical Properties of steel grade DD12

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)
959 (≥) 643 (≥) 41 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade DD12

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
34 - -     0.32 -  
431 878 - 44.3 244   -  
245 - 24 34.2   114 121

Heat Treatment of steel grade DD12

Heat treated : 1657°C - 1466°C

Technological Curves of steel grade DD12

Cross Reference Table (Equivalent Grade) of DD12

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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