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G4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G4

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SS G4

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G4 Profile
G4 Chemical composition
G4 Mechanical Properties
G4 Physical Properties
G4 Heat treatment
G4 Size Availability
G4 Relevant products

Profile

This page is mainly introduced the G4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:G4
Type:Special Alloy
Country:Sweden
Standard:SS
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
YG4C		China
TG4	AFNOR	France
TG4	AFNOR	France
TG4	AFNOR	France
TG4	AFNOR	France
G40	AFNOR	France
G40	AFNOR	France
G50	AFNOR	France
G50	AFNOR	France
H03	AFNOR	France
H03	AFNOR	France
CG40	SS	Sweden
CG40	SS	Sweden
G4	SS	Sweden
S235J2G4	UNE	Spain
S275J2G4	UNE	Spain
S355J2G4	UNE	Spain
S355K2G4	UNE	Spain
G42	CSN	Czech Republic
EN S355J2G4	EN	Euronorm
EN S355K 2G4	EN	Euronorm
EN S235J2G4	EN	Euronorm
EN S275J2G4	EN	Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	371～636	σb/MPa
Yield Strength	788	σ 0.2 ≥/MPa
Elongation	05	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	559～475	-
HRC	30	-

Physical Properties

Thermal expansion	26-47	e-6/K
Thermal conductivity	99-08	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9337-0604	째C
Density	4466-3631	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)
G4 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