| Size | OD: 0.5''-24'' WT:6mm-30mm |
| Length | FIXED LENGTH AND RANDOM LENGTH accord to client's requirement |
| Material | Q235A,Q235B, Q345(16Mn),L245(B),L290(X42),L320(X46),L360(X52),L390(X56) |
| L415(X60),L450(X65),L485(X70),L555(X80), L290NB/MB(X42N/M),L360NB/MB(X52N/M) | |
| L390NB/MB(X56N/M),L415NB/MB(X60N/M),L450MB(X65),L485MB(X70),L555MB(X80) | |
| Standard | GB/T3091-2008,GB/T9711.1, GB/T9711.2,GB/T9711.3,API5L PSL1,JIS G3460-2006 etc |
| SY/T5037-2000 The spiral steel pipe used for transportation of fluid | |
| GB/T9711.1-1997 the spiral steel pipe used for gas and oil | |
| API-5L(PSL1 AND PSL2) spiral line pipe Used for oil | |
| SY/T5040-2000 spiral welded steel pipe for pile | |
| Usage | OIL, GAS, COAL AND MINE TRANSMISSION |
| Ends | Beveled,flange,Plain, beveled/straight cut, plastic or mental ends protectors |
| Surface | Bared,or Black painting,3PE,FBE,PP |
| Technical | SAW,ERW,SSAW |
| Payment | L/C, T/T ETC |
| Delivery | 10 · 30 days after receiving the deposit or the LC |
| MOQ | 10Tons |
| FOB Port | Tianjin or any port |
| Package | 1. in bulk 2. packed by steel strip into bundle 3. according to client |
| Inspection | With hydraulic testing,eddy current,infrared test |
| Place of export | Urope, North America, the Middle East, Africa, Asia and other countries |
| Coating | PP,3PE,FBE, OIL PAINTING, BLACK PAINTING OR AS PER CLIENT'S |
| Packing | PP, PE, IN BUNDLE, BLACK PAINTING AND CAPS ON BOTH ENDS, OR AS PER THE CLIENT'S REQUIREMENT |
II. Flow chart
IIi. what we do
IV. Why you should choose us
1.We are specialized in manufacturing seamless steel pipe with rich experience, superior quality and OEM services, cost performance can be controlled.
2.Reasonable and competitive price according to your drawings
3.Material inspection, producing inspection, final inspection, factory in-house testing
4.All of the sales members dedicated ourselves to provide you with professional and realible services.
VII.Who we are: Dingsheng pipe Co.,established in 2009, is located in the cangzhou hebei province Expressway, boasting superior geographic location, convenient transportion and increased communication.
IX. We are Reliable and Certified
Since the establishment of
| Certified Picture | Certification Name | Certified By | Certificate No. | Product Name & Model No. | Available Date · Expired Date |
|---|---|---|---|---|---|
| ISO 9001:2008 | CCS, CNAS | 00511Q21092R1M | Scope: Production of Steel Pipe Fittings, Forged Flange and Metal Bellows Expansion Joint. | 2011/09/08 · 2014/09/07 | |
| CE | CEOC | 2816/3/2010 | 20G, 15CrMoG, 12Cr1MoVG, SA-106B, Sal106C, SA-335P11, SA-335P12, SA-335P22, SA-335P91,SA-335P92, 15NiCuMoNb5-6-4, TP-304, TP-304H, TP-304N, TP-304LN, TP-316, TP-316H, TP-316N, TP-316LN & DN15-DN1200 | 2010/10/28 · 2015/10/28 | |
| ISO 14001:2004 | CQM | CN-00211E21026R0S | Scope: Production and Relevant Management Activities of Steel Piping, Steel Flange and Metal Bellows Expansion Joints. | 2011/07/29 · 2014/07/28 |
| Models of Steel Pipes | Chemical Component | |||||||
| Steel 20 (ASTM A106B) | C | Si | Mn | P | S | Cu | Ni | Cr |
| 0.17~0.24 | 0.17~0.37 | 0.35~0.65 | 0.035max | 0.035max | 0.25max | 0.25max | 0.25max | |
| Steel45 (ASTM 1045) | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | 0.035max | 0.035max | 0.25max | 0.25max | 0.25max |
| 16Mn(Q345B) | 0.12~0.20 | 0.20~0.55 | 1.20~1.60 | 0.035max | 0.035max | 0.25max | 0.25max | 0.25max |
| 45Mn2 ( ASTM1345) | 0.42~0.49 | 0.17~0.37 | 1.40~1.80 | 0.035max | 0.035max | 0.3max | 0.3max | 0.30max |
100% ultrasonic flaw detection for the material plate
100% automatic on-line UT test after welding
100% whole-length seam X-ray test
100% inside weld line industrial TV test
100% hydrostatic test
100% automatic on-line seam UT test after hydrostatic test, expanding
100% X-ray test and make X-ray film or picture record on pipe ends
100% pipe appearance and plate appearance inspection.




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Step 1
Payment and order readiness
Minimum order: 10 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
7 days
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Step 3
Packaging and dispatch
Packaging details are available on request.
Final packing, freight, and delivery dates are confirmed before dispatch.
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