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T12A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T12A

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JIS T12A

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This page is mainly introduced the T12A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T12A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
T12A
Hardness quartile HRA:92
Bending strength frequency/MPa:1700

Steel Garde:T12A
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
T12A	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	340～611	σb/MPa
Yield Strength	315	σ 0.2 ≥/MPa
Elongation	50	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	663～782	-
HRC	30	-

Physical Properties

Thermal expansion	85-48	e-6/K
Thermal conductivity	56-20	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3426-6597	째C
Density	2996-9630	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
T12A Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk