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GBT10 20
#15

Description

China GBT 15 China structural steel and alloy steel and 15 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 15
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 15 GBT China China structural steel and alloy steel
Q235GJZ-D
Q235GJZ-E
Q345GJZ-C
Q345GJZ-D
Q345GJZ-E
08F
10F
15F
8
GBT10

Chemical composition(mass fraction)(wt.%) of the 15

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.12-0.18 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.3 0.25

Mechanical Properties of steel grade 15

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)
725 (≥) 867 (≥) 12 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 15

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
33 - -     0.24 -  
888 613 - 14.3 144   -  
171 - 42 14.2   421 113

Heat Treatment of steel grade 15

Heat treated : 1623°C - 1796°C

Technological Curves of steel grade 15

Cross Reference Table (Equivalent Grade) of 15

Grade Standard Country Application
Q215 China Engineering and welding
Q215 B China Engineering and welding
ASTM 1015 ASTM USA General use carbon steel bar
UNS G10150 UNS USA General use carbon steel bar
7Mn15Cr2A13V2WMo China Alloy tool steel - Without magnetic steel mold
T31501 UNS USA Alloy tool steel
T31506 UNS USA Alloy tool steel
T31507 UNS USA Alloy tool steel
T15 ASTM USA Tungsten series High-Speed Tool Steel
T12015 UNS USA Tungsten series High-Speed Tool Steel
CPM Rex T15 AISI USA Powder metallurgy high-speed tool steel
CPM Rex T15HS AISI USA Powder metallurgy high-speed tool steel
CQ-15 AISI USA W-Co class carbide
Stellite 156 Stellite alloy
Stellite 157 Stellite alloy
Stellite 158 Stellite alloy
Stellite 159 Stellite alloy
1.1525 DIN Germany Carbon tool steel
1.1520 DIN Germany Carbon tool steel
1.1545 DIN Germany Carbon tool steel
GBT10 20
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Jiangyou Longhai Special Steel Co.,Ltd.

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