cold drawn precision seamless steel pipe

Product Description

cold drawn precision seamless steel pipe

Specification:
OD: 3mm-150mm
Wall thickness: 0.4mm-15mm
Tolerance of diameter: ≤±0.05mm；
Tolerance of W.T.: ≤±0.05mm；
Concentricity: ≤0.05mm
Straightness : 0.30mm/m
Application:
1.Auto parts ;
2.Gas spring;
3. Motor housing, dc motor;
4. Industrial processing: machine parts, bearing sleeve
5. Hydraulic cylinder ,air cylinder;
6. Other: electrical gas transmission, water generation fluid pipeline, etc.

Material Grade and Standard:

Chemical Composition& Mechanical Properties
Grade	C	Mn	P≤	S≤	Si	Cr	Mo
1008	≤0.10	0.30-0.50	0.040	0.050	-	-	-
1010	0.08-0.13	0.30-0.60	0.040	0.050	-	-	-
1018	0.15-0.20	0.60-0.90	0.040	0.050	-	-	-
1020	0.18-0.23	0.30-0.60	0.040	0.050	-	-	-
1025	0.22-0.28	0.30-0.60	0.040	0.050	-	-	-
1035	0.32-0.38	0.60-0.90	0.040	0.050	-	-	-
1045	0.43-0.50	0.60-0.90	0.40	0.50	-	-	-
4130	0.28-0.33	0.40-0.60	0.040	0.040	0.15-0.35	0.8-1.10	0.15-0.25
4140	0.38-0.43	0.75-1.00	0.040	0.040	0.15-0.35	0.8-1.10	0.15-0.25

GB/T	ASTM	JIS	DIN
10	1010	S10C	ST35,ST37,ST37.4,CK10
15	1015	S15C	CK15
20	1020	S20C	CK22
16Mn/Q345			ST52,ST52.4,17Mn4
35	1035	S35C	CK35
45	1045	S45C	CK45
15Crmo		SCM420	13CrMo44
20Crmo		SCM420	25CrMo4
30Crmo	4130	SCM430
35Crmo	4130	SCM435	34CrMo4
40Crmo	4140	SCM440	42CrMo4

Advantage:

1. High dimensional accuracy, the tolerance of inner and outer diameter size can be accurate to within 0.05mm, better tolerance can controled wihthin 0.025mm. Precision H8-H10
2. Good surface smoothness finish;
3. Good cleanliness， inside and outside surface no oxide layer
4. Can withstand high pressure, cold bending, flaring flattening, without cracking/ wrinkled
5. Excellent overall performance, can make a variety of complex deformation and machining.

Delivery Condition:

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.
Equipment&Production

Factory Equipment

Factory ProductionPacking & DeliveryPacking1. Plastic bag +wooven bag,Bundle packing by steel belt
2.Wooden case by customer requirement
3.Label as customer requirement WarehouseCertifications Our Company

SHANDONG WAN STEEL Import and Export Co., Ltd., belong to WAN STEEL Group ,locate at Taishan steel Industry park ,Tai’an City, Shandong province. We are professional steel pipe supplier with more than 30 years experience. We cooperate closely with many large companies at home and abroad, and have set production base in Shandong , Jiangsu,Tianjin , Foshan ect. Our main products are seamless steel pipe, spiral steel pipe, welded steel pipe, hot dipped galvanized steel pipe, precision alloy seamless steel pipe and stainless steel seamless pipe . We have various kinds of pipe in large stock at any time, can meet your individual requirements in terms of quantity and quality. Our products get the ISO9001 quality certificate; French BV, SGS ,China CCS. API; Britain CE certificate, the approval of ISO14000 environmental management system and OSHMS occupational health and safety management system.

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FAQ

Q: Are you trading company or manufacturer ?
A: We are factory with more than 30 years experience. We cooperate closely with many large companies at home and abroad, and have set production base in Shandong , Jiangsu,Tianjin , Foshan ect.

Q: How long is your delivery time?
A: 20-30 working days after receiving deposit

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact us as below:

Seamless Steel Pipe mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the cold drawn precision seamless steel pipe mechanical properties of the corresponding standard specifies. Seamless Steel Pipe surface quality, appearance, dimensional accuracy cold drawn precision seamless steel pipe better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.
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Seamless Steel Pipe deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, cold drawn precision seamless steel pipe laminating steel plates, etc, so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.