80 - Special Alloy -

Location » Home » Grades > Special Alloy > 80

Category
Type
Steel grade
Standard
Country
USE

Grades
Special Alloy
» 80
30
35
40
45
50
55
60
65
70
75
GBT
China
China structural steel and alloy steel

Chemical composition % of the ladle analysis of grade 80

C(％)	Si(％)	Mn(％)	P(％)	S(％)	Cr(％)	Ni(％)	Cu(%)
0.77-0.85	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.3	0.25

Mechanical properties of grade 80
Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
574 (≥)	374 (≥)	42	32	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	334

Physical properties of grade 80
Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2
389 (≥)	844 (≥)	12	32	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	122
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
145	966	338

80 Range of products
Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)WL	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)
Grade	Standard	Country	Application
G1800			Used in the products of the automobile, truck, tractor, and allied industries. Miscellaneous soft iron castings (as cast or annealed) in which strength is not of primary consideration. Exhaust manifolds may be made of this grade of iron, alloyed or unallo
GH4180			Nickel-base superalloy
S21800			Austenitic Chromium Nickel Manganese Stainless Steel
S30803			Austenitic wire for metal inert gas welding. It is suitable for welding corrosion resistant 18/8 CrNi steels for devices, vessels and parts in chemical, pharmacy and cellulose industry for temperature up to 350°C. Welded material has oxidation resistance
S30880			Austenitic Chromium Nickel Stainless Steel Bare Filler Metal
A 240 S34800			Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S34800			Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 S34800			Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 276 S34800			Stainless Steel Bars and Shapes
A 314 S34800			Stainless Steel Billets and Bars for Forging
A 358 S34800			Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S34800			Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 S34800			Stainless Steel Forgings
A 580 S34800			Stainless Steel Wire
A 632 S34800			Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
A 813 S34800			Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 S34800			Cold-Worked Welded Austenitic Stainless Steel Pipe
A 965 S34800			Steel Forgings, Austenitic, for Pressure and High Temperature Parts
S34800			Austenitic Chromium Nickel Stainless Steel
SA-240 S34800			Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications