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2A,2Q

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1A 3A,3Q
#2A #2Q

Description

USA ASTM 2A,2Q Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures and 2A,2Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 2A,2Q
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 2A,2Q ASTM USA Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
J03000
J03001
J03501
J02501
Gr 485
Gr 620
Gr 825
Grade21
Grade31
1A

Chemical composition(mass fraction)(wt.%) of the 2A,2Q

C(％) Si(％) Mn(％) P(％) S(％)
0.25-0.35 0.20-1.00 0.70-1.00 0.04 0.045

Mechanical Properties of steel grade 2A,2Q

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)
621 (≥) 711 (≥) 22 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade 2A,2Q

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
22 - -     0.11 -  
942 139 - 21.3 214   -  
156 - 41 32.2   342 221

Heat Treatment of steel grade 2A,2Q

Heat treated : 1442°C - 1669°C

Technological Curves of steel grade 2A,2Q

Cross Reference Table (Equivalent Grade) of 2A,2Q

Grade Standard Country Application
7Mn15Cr2A13V2WMo China Alloy tool steel - Without magnetic steel mold
W6Mo5Cr4V2Al China High-speed tool steel
T12A JIS Japan Carbide for cutting tools
T12A JIS Japan Carbide for cutting tools
BD2A UK Carbide for cutting tools
BD2A UK Carbide for cutting tools
BT1 UK Carbide for cutting tools
BT1 UK Carbide for cutting tools
у12A-1 ГОСТ Russia Carbide for cutting tools
у12A-1 ГОСТ Russia Carbide for cutting tools
у12A-2 ГОСТ Russia Carbide for cutting tools
у12A-2 ГОСТ Russia Carbide for cutting tools
у12A-3 ГОСТ Russia Carbide for cutting tools
у12A-3 ГОСТ Russia Carbide for cutting tools
SUS304N2A JIS Japan martensitic stainless steel
Z2CND25-22Az AFNOR France Stainless steel palte & Steel Strip
Z3CND17-12Az AFNOR France Stainless Steel Plate & Steel Strip
Z2CND25-22Az AFNOR France Boiler & Pressure Vessel Plate (NF A 35-209(1992))
Z20CN21-12Az AFNOR France Steel Exhaust Valves
Z50CMNNb21-09-02Az AFNOR France Steel Exhaust Valves
1A 3A,3Q
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