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75 85
#80

Description

China GBT 80 China structural steel and alloy steel and 80 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 80
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 80 GBT China China structural steel and alloy steel
30
35
40
45
50
55
60
65
70
75

Chemical composition(mass fraction)(wt.%) of the 80

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.77-0.85 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.3 0.25

Mechanical Properties of steel grade 80

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)
351 (≥) 635 (≥) 22 13 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade 80

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
24 - -     0.43 -  
486 585 - 24.3 331   -  
177 - 21 13.2   321 244

Heat Treatment of steel grade 80

Heat treated : 1518°C - 1262°C

Technological Curves of steel grade 80

Cross Reference Table (Equivalent Grade) of 80

Grade Standard Country Application
UNS G10080 UNS USA General use carbon steel bar
UNS G10180 UNS USA General use carbon steel bar
C80W1 Germany Carbon tool steel
C80W2 DIN Germany Carbon tool steel
1.2080 DIN Germany Cold working alloy tool steel
80CrV2 DIN Germany Cold working alloy tool steel
80WCrV8 DIN Germany Cold working alloy tool steel
1.2880 DIN Germany Cold working alloy tool steel
SK80 JIS Japan Carbon tool steel
TC80 JIS Japan Carbon tool steel
AC805 JIS Japan Carbide for cutting tools
AC805 JIS Japan Carbide for cutting tools
X80MoCrV42-16 AFNOR France Carbide for cutting tools
X80MoCrV42-16 AFNOR France Carbide for cutting tools
SS14:1880 SS Sweden Carbide for cutting tools
SS14:1880 SS Sweden Carbide for cutting tools
C80U ISO ISO Carbide for cutting tools
C80U ISO ISO Carbide for cutting tools
UNS S42800 UNS USA Martensitic special steel
AISI S13800 USA precipitation hardening
75 85
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