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Q345FRC

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China YB Q345FRC 耐火热轧 H型钢(Hot rolled fire-resistant H section steel) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q345FRC / Q345FRC
Category Grade Standard Region/Area Standard Content
Metals Q345FRC YB/T 4261 China 耐火热轧 H型钢(Hot rolled fire-resistant H section steel)

Chemical composition(mass fraction)(wt.%) of the Q345FRC

Element Min Max Similar
V - 0.1500 -
Mo - 0.9000 -
Cr - 0.7500 -
Nb - 0.2000 -
S - 0.0300 -
P - 0.0300 -
Mn - 1.7000 -
Si - 0.6000 -
C - 0.2000 -

Mechanical Properties of steel grade Q345FRC

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)
343 (≥) 673 (≥) 11 13 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade Q345FRC

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
43 - -     0.42 -  
824 821 - 41.3 233   -  
899 - 24 31.2   312 221

Heat Treatment of steel grade Q345FRC

Heat treated : 1283°C - 1449°C

Technological Curves of steel grade Q345FRC

Cross Reference Table (Equivalent Grade) of Q345FRC

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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Jiangyou Longhai Special Steel Co.,Ltd.

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