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H12 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of H12

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ASTM H12

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This page is mainly introduced the H12 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of H12,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
H12

Steel Garde:H12
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
BH12		UK
BH12		UK
15X18H12C4TЮ
03X18H12	ГОСТ	Russia
03X18H12T	ГОСТ	Russia
12X18H12T	ГОСТ	Russia
08X18H12Б	ГОСТ	Russia
ISO H12	ISO	ISO
SWRCH12R	CNS	China
SWRCH12A	CNS	China
SWRCH12K	CNS	China
EN FeH12FU	EN	Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	229～355	σb/MPa
Yield Strength	345	σ 0.2 ≥/MPa
Elongation	66	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	679～304	-
HRC	30	-

Physical Properties

Thermal expansion	33-53	e-6/K
Thermal conductivity	88-33	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1177-6878	째C
Density	1291-9666	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)
H12 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