Available 24/7 at contact@steel-grades.com

China NB P280GH 压水堆核电厂阀门 第4部分:碳素钢锻件技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P280GH / P280GH
Category Grade Standard Region/Area Standard Content
Metals P280GH NB/T 20010.4 China 压水堆核电厂阀门 第4部分:碳素钢锻件技术条件

Chemical composition(mass fraction)(wt.%) of the P280GH

Element Min Max Similar
Al 0.0200 0.0500 -
Sn - 0.0300 -
Mo - 0.1000 -
Cr - 0.2500 -
Ni - 0.5000 -
Cu - 0.2500 -
P - 0.0250 -
S - 0.0200 -
Mn 0.8000 1.6000 -
Si 0.1000 0.4000 -
C - 0.2200 -
Al 0.0200 0.0500 -
Sn - 0.0300 -
Mo - 0.1000 -
Cr - 0.2500 -
Ni - 0.5000 -
Cu - 0.2500 -
P - 0.0200 -
S - 0.0150 -
Mn 0.8000 1.6000 -
Si 0.1000 0.3500 -
C - 0.2000 -

Mechanical Properties of steel grade P280GH

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)
999 (≥) 349 (≥) 33 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade P280GH

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 - -     0.23 -  
652 954 - 13.3 214   -  
393 - 32 22.2   421 112

Heat Treatment of steel grade P280GH

Heat treated : 1373°C - 1746°C

Technological Curves of steel grade P280GH

Cross Reference Table (Equivalent Grade) of P280GH

Available Suppliers

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 P280GH?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top