High strength cylinder pipe

High strength cylinder pipe has high strength & tenacity, brittle fracture resistance and good weldability. S700 and S890 high strength cylinder pipes also have good hardenability and uniform performance after heat treatment. They are especially suitable for manufacturing high strength cylinders with large OD, medium & large wall thickness.

Application Fields

High strength cylinder pipe are mainly used for hydraulic support of coal collection face, hydraulic cylinder, engineering machinery, ship lock and offshore platform etc.

Production Range

OD: 42mm-760mm
WT: 4mm-120mm

Standard and Steel Grade

GB/T 8162
GB/T 8163
GB/T 17396 or technical agreement.

Requirements for Mechanical Properties
Steel Grade	Delivery Condition	Tensile	Yield	Elongation	R.A.	Absorbed-engergy
		(MPa)	(MPa)	(%)	(%)	(J)
		Not Less Than
27SiMn	Quenching+Tempering	980	835	12	40	20℃(AKU2)	39
30CrMnSiA	Quenching+Tempering	1080	835	10	35	20℃(AKU2)	39
30CrMoA	Quenching+Tempering	930	735	12	50	20℃(AKU2)	71
20MnTiB	Quenching+Tempering	1050	930	10	45	20℃(AKU2)	50
S700	Quenching+Tempering	750	650	14	40	-20℃(AKV2)	47
S890	Quenching+Tempering	810	700	14	35	-40℃(AKV2)	60

Seamless pipe is used for supply or transportation of water, oil, gas and other liquids under the specification of seamless pipe (GB / T8163-1999).

Mechanical Properties(%) of GB/T8163 steel pipe

Standard codes	Models of steel tubes	Tensite strength（MPa）	Yield strength（MPa）	Elongation（％）
GB/T8163	10	335-475	≥205	≥24
	20	410-550	≥245	≥20
	Q345	490-665	≥325	≥21

Chemical Composition(%) of GB/T8163 steel pipe

Standard codes	Models of steel tubes	Chemical compositions（％）
Standard codes	Models of steel tubes	C	Si	Mn	P	S	Cr	Ni	Cu
GB/T8163	10	0.07-0.14	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.15	≤0.25	≤0.25
	20	0.17-0.24	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	≤0.25	≤0.25
	Q345	0.12-0.20	0.20-0.55	1.20-1.60	≤0.045	≤0.045	/	/	/

此博客中的热门博文

High Chromium Cast Iron Bimetal Cladding Pipe

High Chromium Cast Iron Bimetal Cladding Pipe, High Chromium Cast Iron pipe, Bimetal Cladding Pipe We are manufacturer of High Chromium Cast Iron Bimetal Cladding Pipe and supply high quality High Chromium Cast Iron Bimetal Cladding Pipe in both large and small quantities worldwide and offer you the best prices in the market. These Steel-high chromium cast iron bimetal cladding pipe is a new type of abrasion proof piping developed by our company. Outer of straight pipe is common steel pepe, cladding realized by forming high chromium lining via centrifugal forming technique. Outer of bend uses hot-bending bend and lining is cast with high-chromium cast iron. Compared with traditional wear-resistant alloy cast iron, wear-resistant alloy cast steel, general cladding steel pipe and cast stone pipe. 1. Good wear-resistance, giving full play to wear-resistance of high chromium cast iron. 2. Withstanding high pressure: It can be used for any pressure rating. Close bonding of outer and lining ...

阅读全文

ASTM A213 alloy tube

ASTM A213 alloy tube ASTM A213, ASTM A213 T91, ASTM A213 T22, ASTM A213 T12, ASTM A213 T11, ASTM A213 T9, ASTM A213 T5 ASTM A213 Standard covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. Our products for ASTM A213 alloy steel tubes have been listed as follows: A STM A213 T911 Seamless alloy tube ASTM A213 T23 Seamless alloy tube ASTM A213 T17 Seamless alloy tube ASTM A213 T22 Seamless alloy pipe ASTM A213 T9 Alloy Steel tubes ASTM A213 T91 alloy tube ASTM A213 T24 Seamless alloy tube ASTM A213 T21 Seamless alloy tube ASTM A213 T11 Seamless boiler tube ASTM A213 T5 Superheater Tubes ASTM A213 T12 Seamless alloy tube ASTM A213 T91 Seamless alloy tube ASTM A213 T91 Standard covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. Grades containing the letter H in their designation have requirements different from those of similar grades not containing the letter H. These different requirements prov...

阅读全文

Laser Welded Finned Tubes process

This line was developed by our engineers combining both our large experience manufacturing extended surface and the most modern laser technology available in the market. The fins (solid or serrated) are helically wound and continuously welded to the tube by a fully automatic laser finning machine. This new laser finning process produces a perfect fin-to-tube bond with lower heat input and improved efficiency in heat flow and resistance to corrosion. Advantages of Finned Tubes Welded by Laser Highest quality product Wider range of products in both geometry and materials Price saving Highest Quality Product The perfect bond between fin and tube improves efficiency in heat transfer and resistance to corrosion resulting in a clean weld fin to tube joint and fully straight fins (no corrugation). Lower energy consumption, reduced cost of consumables and increased efficiency of the process allow us to offer very competitive prices

阅读全文

Alloy pipe

搜索此博客