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Q345S Grade C

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China GB Q345SGradeC 水电站压力钢管用钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q345SGradeC / Q345S Grade C
Category Grade Standard Region/Area Standard Content
Metals Q345S Grade C GB/T 31946 China 水电站压力钢管用钢板

Chemical composition(mass fraction)(wt.%) of the Q345S Grade C

Element Min Max Similar
Al 0.0150 - -
S - 0.0150 -
P - 0.0250 -
B - 0.0020 -
Cu - 0.3000 -
V - 0.0500 -
Nb - 0.0500 -
Ti - 0.0500 -
Mo - 0.0800 -
Cr - 0.1000 -
Ni - 0.2000 -
Mn 1.2000 1.6000 -
Si - 0.5000 -
C - 0.2000 -

Mechanical Properties of steel grade Q345S Grade C

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)
982 (≥) 382 (≥) 12 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade Q345S Grade C

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
22 - -     0.44 -  
181 582 - 42.3 142   -  
381 - 12 14.2   223 412

Heat Treatment of steel grade Q345S Grade C

Heat treated : 1767°C - 1665°C

Technological Curves of steel grade Q345S Grade C

Cross Reference Table (Equivalent Grade) of Q345S Grade C

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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