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GB GT88
#GB

Description

France AFNOR GB Carbide for cutting tools and GB Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: GB
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy GB AFNOR France Carbide for cutting tools
G10
G30
G30
G40
G40
G50
G50
GC20
GC20
GB

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

Mechanical Properties of steel grade GB

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)
284 (≥) 621 (≥) 11 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade GB

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
32 - -     0.23 -  
959 325 - 41.3 122   -  
896 - 12 13.2   422 133

Heat Treatment of steel grade GB

Heat treated : 1928°C - 1561°C

Technological Curves of steel grade GB

Cross Reference Table (Equivalent Grade) of GB

Grade Standard Country Application
GB AFNOR France Carbide for cutting tools
GB AFNOR France Carbide for cutting tools
GB/T 10 GBT China Australia Structural steel
GB GT88
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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...

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