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75 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 75

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GBT 75

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This page is mainly introduced the 75 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 75,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
75

Steel Garde:75
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Relevant products:

S32750 Stainless...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Q275		China
C75W	DIN	Germany
1.1750	DIN	Germany
75Cr1	DIN	Germany
75CrMoNiW6-7	DIN	Germany
SK75	JIS	Japan
SS14:2750①	SS	Sweden
SS14:2750①	SS	Sweden
SS14:2752	SS	Sweden
SS14:2752	SS	Sweden
S14:2754①	SS	Sweden
S14:2754①	SS	Sweden
SS14:2756①	SS	Sweden
SS14:2756①	SS	Sweden
CT75	SS	Sweden
CT75	SS	Sweden
Type440FSe	UNS	USA
Type440FSe	UNS	USA
UNS N07500	UNS	USA
UNS N07750	UNS	USA
UNS N07751	UNS	USA
W-Nr 1.4575	DIN	Germany
1.4875	DIN	Germany
2.4975	DIN	Germany
NCF751	JIS	Japan
NCF750	JIS	Japan
1.4875	AFNOR	France
SS14 2375	SS	Sweden
SS14 2375	SS	Sweden
ASTM Grade 485-275(70-40)	ASTM	USA
1.6750	DIN	Germany
1.6759	DIN	Germany
1.7755	DIN	Germany
1.7756	DIN	Germany
SS 2375	SS	Sweden
SS 2375	SS	Sweden
S35750	GBT	China
S31753	GBT	China
2MoNiCrl75	STAS/SR	Romania
10TiMoNiCr175	STAS/SR	Romania
C-75	STAS/SR	Romania
OLC75A	STAS/SR	Romania
T12TiMoNiCrl75	STAS/SR	Romania
T75Cr280	STAS/SR	Romania
S275J0	UNE	Spain
S275J2G3	UNE	Spain
S275J2G4	UNE	Spain
S275N	UNE	Spain
S275NL	UNE	Spain
S275M	UNE	Spain

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	890～406	σb/MPa
Yield Strength	391	σ 0.2 ≥/MPa
Elongation	88	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	933～134	-
HRC	30	-

Physical Properties

Thermal expansion	69-12	e-6/K
Thermal conductivity	35-22	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5768-0571	째C
Density	1747-7131	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)
75 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