8Application:China structural steel and alloy steel
Category	Type	Steel grade	Standard	Country
Grades	Special Alloy	8	GBT	China

Chemical composition%of the ladle analysis of grade8

C(％)	Si(％)	Mn(％)	P(％)	S(％)	Cr(％)	Ni(％)	Cu(%)
0.05-0.11	0.17-0.37	0.35-0.65	0.035	0.035	0.1	0.3	0.25

Mechanical properties of grade8
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)
319(≥)	191(≥)	33	21	14	Solution and Aging,Annealing,Ausaging,Q+T,etc	122

Physical properties of grade8
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
266(≥)	691(≥)	42	32	24	Solution and Aging,Annealing,Ausaging,Q+T,etc	442
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0)N/mm2	Creep rupture strength (10000h) (Rp1,0)N/mm2
147	756	433

8Range 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
Y1Cr18Ni9	GBT	China	Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut
1Cr18Ni9	GBT	China	High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts
1Cr18Mn10Ni5Mo3N	GBT	China	Of urea with good corrosion resistance, can produce urea corrosion of the equipment.
Y1Cr18Ni9Se	GBT	China	Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
0Cr18Ni9	GBT	China	Seamless stainless steel tubes for boiler and heat exchanger
1Cr18Mn8Ni5N	GBT	China	Nickel steel, instead of 1cr18ni9
00Cr18Ni10N	GBT	China	In 00cr19ni10 adding N, on the basis of the above grades also features, use the same as the 0 cr19ni9n, but better intergranular corrosion resistance
1Cr18Ni12	GBT	China	Compared with 0 cr19ni9, processing low hardenability. Used for spinning processing, special drawing, cold heading
1Cr18Ni12Mo2Ti	GBT	China	Seamless stainless steel tubes for boiler and heat exchanger
0Cr18Ni12Mo2Ti	GBT	China	Seamless stainless steel tubes for boiler and heat exchanger
G1800	GBT	China	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
F10008	GBT	China	Used in the products of the automobile, truck, tractor, and allied industries. Diesel engine castings, liners, cylinders, and pistons.
W108 Commerial	GBT	China	Water quenching tool steel
00Cr17Ni14Mo2	GBT	China	Austenitic stainless steel. Grade 00Cr17Ni14Mo2 was replaced by new designation 022Cr17Ni12Mo2 according to GB/T 20878 (2007)
X2CrNiMo18-14-3	GBT	China	Austenitic stainless steel. Grade 00Cr17Ni14Mo2 was replaced by new designation 022Cr17Ni12Mo2 according to GB/T 20878 (2007)
1.4435	GBT	China	Austenitic stainless steel. Grade 00Cr17Ni14Mo2 was replaced by new designation 022Cr17Ni12Mo2 according to GB/T 20878 (2007)
Z 3 CND 17-11-02	GBT	China	Austenitic stainless steel. Grade 00Cr17Ni14Mo2 was replaced by new designation 022Cr17Ni12Mo2 according to GB/T 20878 (2007)
TS 60	GBT	China	Austenitic stainless steel. Grade 00Cr17Ni14Mo2 was replaced by new designation 022Cr17Ni12Mo2 according to GB/T 20878 (2007)
0Cr18Ni12Mo2Cu2	GBT	China	0Cr18Ni12Mo2Cu2 stainless steel corrosion resistance, resistance to corrosion resistance is better than 0Cr17Ni12Mo2. 0Cr18Ni12Mo2Cu2 stainless steel used in the sulphuric acid resistant material.
00Cr18Ni14Mo2Cu2	GBT	China	00Cr18Ni14Mo2Cu2 0Cr18Ni12Mo2Cu ultra-low carbon steel, stainless steel 00Cr18Ni14Mo2Cu2 stainless steel is better than 0Cr18Ni12Mo2Cu2 resistance to intergranular corrosion.

Relevant products

8 Steel Stock

Steel grade	Dimension	Shape	Unit	Quantity	Delivery state	Query
Cr8 flat bar	12355L	Flat or Square bar	Kgs	3965	Forged+Annealed+black	Enquiry
IncoloyA-286 / GH 2132 Stock	Φ8-65mm*L	Round Bar	Kgs	489	Hot-Rolled+Annealed+black	Enquiry
Incoloy800 round bar	Φ115*1400	Round Bar	Kgs	169	Hot-Rolled+Annealed+black	Enquiry
1.2083 Forged Plate	T:105-185mmW:510L	Plate or Sheet	Tons	26	Forged+QT	Enquiry
1.4882 strip/sheet/plate stock	3.5x200x1000-2000mm	Coil or Strip	Kgs	200	Cold-Rolled+Annealed	Enquiry
A387 F5 & Grade 5 sheet Coil strip	0.5mmx200mmxC	Coil or Strip	Tons	3	Cold-Rolled+Annealed	Enquiry
A387 F5 & Grade 5 Hot Coil stock		Select	Tons	3	Hot-Rolled+Annealed+black	Enquiry
PH13-8Mo Forgings		Select		0	Select	Enquiry
0Cr13Ni8Mo2Al, PH13-8Mo, 13-8Mo, XM-13 round bar stock		Select		0	Select	Enquiry

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Chemical composition%of the ladle analysis of grade8

Relevant products

A387 F5 / Grade 5 Coil / Sheet

1.4980 Round Bar

1.4980

GH 3536 Sheet

UNS NO7718 Coil/Strip/Sheet

Cr8 flat bar

IncoloyA-286 / GH 2132

S66286 round bar

Inconel718 round bar

NO8020 round bar

Incoloy800 round bar

Incoloy825 round bar

NO8825 round bar

Inconel825 round bar

Incoloy800 round bar

NO8020/No8031/N08367/NO8810/NO8825 Forging

GH 3536 Sheet

06Cr19Ni10/S30408/304/S30400/1.4301 Tube

S30409/304H/S30409/1.4948 Tube

S32168/321/S32100/1-4541 Tube

8 Steel Stock

Enquiry