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Grade DH550

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China 鞍钢Q/ASB GradeDH550 船舶及海洋工程用结构钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GradeDH550 / Grade DH550
Category Grade Standard Region/Area Standard Content
Metals Grade DH550 Q/ASB 141 China 船舶及海洋工程用结构钢板及钢带

Chemical composition(mass fraction)(wt.%) of the Grade DH550

Element Min Max Similar
Pcm - 0.3000 -
Pcm - 0.2800 -
N - 0.0200 -
Al 0.0150 0.0550 -
B - 0.0050 -
Ti - 0.0200 -
V 0.0400 0.1000 -
Nb 0.0200 0.0500 -
S - 0.0200 -
P - 0.0200 -
Mn 0.9000 1.6000 -
Si - 0.5500 -
C - 0.1800 -

Mechanical Properties of steel grade Grade DH550

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)
249 (≥) 888 (≥) 13 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade Grade DH550

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
11 - -     0.23 -  
199 458 - 23.3 244   -  
623 - 32 34.2   314 311

Heat Treatment of steel grade Grade DH550

Heat treated : 1687°C - 1193°C

Technological Curves of steel grade Grade DH550

Cross Reference Table (Equivalent Grade) of Grade DH550

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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