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75Application:China structural steel and alloy steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy 75GBTChina

Chemical composition%of the ladle analysis of grade75

C(％)Si(％)Mn(％)P(％)S(％)Cr(％)Ni(％)Cu(%)
0.72-0.800.17-0.370.50-0.800.0350.0350.250.30.25
75
Mechanical properties of grade75
Proof strength
Rp0.2(MPa)		Tensile strength
Rm(MPa)		Impact energy
KV(J)		Elongation at fracture
A(%)		Reduction in cross section on fracture
Z(%)		As-Heat-Treated ConditionBrinell hardness(HBW)
476(≥)499(≥)343321Solution and Aging,Annealing,Ausaging,Q+T,etc241
Physical properties of grade75
PropertyDensity
kg/dm3		Temperature T
°C/F		Specific heat
J/kgK		Thermal conductivity
W/mK		Electric resistance
µΩ·cm		Modulus of elasticity
kN/mm2		Expansion rate
355(≥)841(≥)343134Solution and Aging,Annealing,Ausaging,Q+T,etc223
Temp.
°C/°F		Creep strain limit
(10000h)
(Rp1,0)N/mm2		Creep rupture strength
(10000h)
(Rp1,0)N/mm2
294512125
75Range of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
317LNGBTChina
Chemical compositions of SAE wrought stainless steels
A 167 Type 317LNGBTChina
Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip
A 240 Type 317LNGBTChina
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 959 Type 317LNGBTChina
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
SUS317LNGBTChina
Specification for stainless steel bars
A 240 S40975GBTChina
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 959 S40975GBTChina
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
S40975GBTChina
Ferritic Chromium Stainless Steel with Nickel
SA-240 S40975GBTChina
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 1049 S32750GBTChina
Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components
A 240 S32750GBTChina
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 270 S32750GBTChina
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 276 S32750GBTChina
Stainless Steel Bars and Shapes
A 479 S32750GBTChina
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 511 S32750GBTChina
Seamless Stainless Steel Mechanical Tubing
A 789 S32750GBTChina
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
A 790 S32750GBTChina
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A 815 CRS32750GBTChina
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 815 WPS32750GBTChina
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 928 S32750GBTChina
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

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