Chinese
Available 24/7 at contact@steel-grades.com
SGSG
Post Your Request Now
Toggle menu
Hello, Sign inMy Account

Q390FRB

Favorite Datasheet

China YB Q390FRB 耐火热轧 H型钢(Hot rolled fire-resistant H section steel) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q390FRB / Q390FRB
Category Grade Standard Region/Area Standard Content
Metals Q390FRB 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 Q390FRB

Element Min Max Similar
V - 0.1500 -
Mo - 0.9000 -
Cr - 0.7500 -
Nb - 0.2000 -
S - 0.0350 -
P - 0.0350 -
Mn - 1.7000 -
Si - 0.6000 -
C - 0.2000 -

Mechanical Properties of steel grade Q390FRB

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)
411 (≥) 547 (≥) 11 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade Q390FRB

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
21 - -     0.32 -  
814 368 - 11.3 434   -  
157 - 31 33.2   313 312

Heat Treatment of steel grade Q390FRB

Heat treated : 1835°C - 1412°C

Technological Curves of steel grade Q390FRB

Cross Reference Table (Equivalent Grade) of Q390FRB

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
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this Q390FRB?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top