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45H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 45H

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GBT 45H

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45H Profile
45H Chemical composition
45H Mechanical Properties
45H Physical Properties
45H Heat treatment
45H Size Availability
45H Relevant products

Profile

This page is mainly introduced the 45H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 45H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
45H

Steel Garde:45H
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Relevant products:

4145H Hollow Bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
CPM Rex 45HS	AISI	USA
5145H	AS	Australia
SCM445H	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	778～071	σb/MPa
Yield Strength	099	σ 0.2 ≥/MPa
Elongation	48	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	485～965	-
HRC	30	-

Physical Properties

Thermal expansion	35-82	e-6/K
Thermal conductivity	87-79	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7460-5989	째C
Density	4874-1951	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)
45H 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