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China Bike Specialized Venge Frame Seamless Steel Pipe

China Bike Specialized Venge Frame Seamless Steel Pipe

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Negotiable Min Order Quantity Unit

Required Quantity

Place of Origin: China

Payment Terms: Negotiable

Production method: Negotiable

Shipping / Lead Time: Negotiable / Negotiable

Keyword: seamless alloy pipe, steel pipe, carbon stee, bike frame

Category: Spring Steel , Steel Pipes

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Changzhou Chengqi Steel Pipe Factory

Membership: BIZ

Country / Year Established: China /

Business type: Manufacturer

Verified Certificate: 8

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PRODUCT DESCRIPTION COMPANY INFORMATION Related Products

Product name	China Bike Specialized Venge Frame Seamless Steel Pipe	Certification	-
Category	Spring Steel Steel Pipes	Ingredients	-
Keyword	seamless alloy pipe , steel pipe , carbon stee , bike frame	Unit Size	-
Brand name	-	Unit Weigh	-
origin	China	Stock	-
Supply type	-	HS code	-

Product Information

Tolerance Table of Steel Tube:

NAME	Scope(mm)	DIN series(mm)	GB series(mm)	Internalcontrol Standard(mm)	Special High-pressure (mm)
Out Diameter	3-30	±0.08	±0.1	±0.05	±0.03
	31-40	±0.15	±0.15	±0.05	±0.03
	41-50	±0.20	±0.20	±0.08	±0.03
	51-60	±0.25	±0.25	±0.08	±0.03
WallThickness	0.5-8	±10%	±10% MIN ±0.12	±10% MIN ±0.05	±10% MIN ±0.03

Mechanical Property:

Standard	Steel Grade	Mechanical Performance
		GBK(+A)		NBK(+N)
		Tensile Strength (Rm mpa)	Elongation rate (A5 %)	Tensile Strength (Rm mpa)	Yield Strength (Reh mpa)	Elongation rate (A5 %)
DIN 2391	St35	≥315	≥25	346-478	≥235	≥25
	St37	≥315	≥25	346-478	≥235	≥25
	St37.4	≥315	≥25	346-478	≥235	≥25
	St45	≥390	≥21	440-570	≥255	≥21
	St44	≥390	≥21	440-570	≥255	≥21
	St52	≥490	≥22	490-630	≥355	≥22

Common Grade Chemical Analysis :

Standard	Steel Grade	Chemical Composition %
		GBK(+A)		NBK(+N)
		C	Si	Mn	S	P
DIN 2391	St35	≤0.17	≤0.35	≥0.40	≤0.025	≤0.025
	St37	≤0.17	≤0.35	≥0.40	≤0.025	≤0.025
	St37.4	≤0.17	≤0.35	≥0.40	≤0.025	≤0.025
	St45	≤0.21	≤0.35	≥0.40	≤0.025	≤0.025
	St44	≤0.21	≤0.35	≥0.40	≤0.025	≤0.025
	St52	≤0.22	≤0.55	≥1.60	≤0.025	≤0.025
DIN EN 10305	E235	≤0.17	≤0.35	≤1.20	≤0.025	≤0.025
	E255	≤0.21	≤0.35	0.40-1.10	≤0.025	≤0.025
	E355	≤0.22	≤0.55	≤1.60	≤0.035	≤0.025
GB/T3639	Q195	0.17-0.13	0.17-0.37	0.35-0.65	≤0.035	≤0.035
	Q235	0.17-0.13	0.17-0.37	0.35-0.65	≤0.035	≤0.035
	Q345	≤0.20	≤0.55	1.00-1.60	≤0.035	≤0.035

Other Specification:

End Shape	Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements
Surface Treatment	Oiled, Galvanized, Phosphate etc
Technique	Cold drawn
Application	1. Automotive and mechanical pipes
	2. Petroleum cracking pipes
	3. High Pressure Boiler Pipe
	4. Low and middle pressure fluid transportation pipeline
	5. Chemical fertilizer equipment pipes
	6. Heat exchanger pipes
very Conditions	1. BK (+C)	No heat treatment after last cold forming process.
	2. BKW (+LC)	After last heat treatment there is a light finishing pass (cold drawing)
	3. BKS (+SR)	After the final cold forming process the tubes are stress relieve annealed.
	4. GBK (+A)	After the final cold forming process the tubes are annealed in a controlled atmosphere.
	5. NBK (+N)	After the final cold forming process the tubes are annealed above the upper transformation point in acontrolled atmosphere.
Package	1. Bundle Packing.
	2. Plain end or vanished as per customer's request.
	3. Wrapped in waterproof paper.
	4. Sackcloth with several steel strips.
	5. Pack in heavy tri-wall boxes.

B2B Trade

Price (FOB)	Negotiable	transportation	-
MOQ	Negotiable	Leadtime	Negotiable
Payment Options	Negotiable	Shipping time	Negotiable

Changzhou Chengqi Steel Pipe Factory

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Country / Year Established: China /

Membership: BIZ

Business type: Manufacturer

President: Zhou

Product Category: Other Minerals & Metallurgy Products,Steel Pipes

No. of Total Employees: 51-100

Company introduction: Changzhou Chengqi Steel Pipe Factory Was established in 2006, It is an enterprise incorporating industry and trade. We have our own foreign trade platform - Changzhou Drake International Trade Co.,Ltd. . Chengqi and Drake are located in Wujin District, Changzhou City, Jiangsu Province，China. Where is Yangtze Rive Delta Economic Development Zone and nearby Hu-Ning Railway, the Changzhou port, the Zhangjiagang port, the Shanghai Port. And the national Highway. The convenient transportation, developed commercial law enable it to be first choice place for foreign friends all over the world to find business opportunities in China.
    With 8 years efforts, Chengqi has developed into the leader manufacturer of precision steel pipes, covering 20000 square meters, including 10000 square meters of constructed area. “Small but professional ” is the development direction and ultimate aim of Chengqi Factory, and our products mainly include the following four series：
    1、DIN series cold-drawn precision steel pipes: are mainly applied in Engineering Hydraulic System, High-pressure Oil System, Automotive Air-conditioning System, Automotive Power Steering System, Automotive Braking System, and so on
    2、DIN high precision galvanized steel pipe: This kind steel pipe is widely used in the field of high requirements for brightness, cleanness and non-corrosibility, such as automotive industry.
    3、DIN high precision galvanized steel pipe: This kind steel pipe is widely used in the field of high requirements for brightness, cleanness and non-corrosibility, such as automotive industry.
    4、High precision cold-rrolled seamless steel pipes:are mainly used for producing Gas Spring, Automotive Shock Absorber Cylinder, Hydraulic Oil Tank, and so on.
    “Dedication leads to profession”, Chengqi Factory emphasizes on the modeling of enterprise image and the accumulation of intangible assets. Depending on the advanced business management and high quality products, Chengqi obtained ISO9001:2008 quality management system certificate in year 2010.