China Stainless Steel
Seamless Pipe & Tube
As a leading Chinese stainless steel pipe & tubes supplier, CIVMATS produce and manufacture a wide range of stainless steel seamless pipes & tubes.
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Custom Size
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- CIVMATS
- Stainless Steel Pipe & Tube
- Seamless Pipe & Tube
Description
As a leading Chinese stainless steel pipe supplier, CIVMATS produce and manufacture a wide range of stainless steel seamless pipes & tubes. The supply of our SS seamless pipes & tubes comes with multiple sizes and various grades which are both customizable. Choose CIVMATS and find the best stainless steel seamless pipes & tubes. CIVMATS boasts its production capacity of stainless steel seamless pipe tube, roughly 2100 tons per month. As per your requirement, we can produce according to American Standard, Germany Standard, Japanese standard, Russian Standard as well as national GB standard. While the most commonplace is our Austenitic (316, 316L, 316Ti, 317L, 321, 321H, 347, 904L) stainless steel seamless pipe tube, which enjoys good reputation home and abroad, special mention should be given to special alloy seamless pipe, like 904L, S31803, S32205, Duplex, Super Duplex, Nickel Alloy, Monel, Inconel, Incoloy, Hastelloy. They are gaining momentum in international market for their good comprehensive performance, reasonable price and satisfactory customer buying experience. We welcome you for further consultation.
Specifications
- • Outer Diameter: Φ4-Φ1219mm (Minimum - Maximum)
- • Wall Thickness: 0.5-100mm (Minimum – Maximum)
- • Length: 24000mm (Maximum)
- • *Customized size needs to be confirmed with us
Standards
- • American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213, ASTM A511, ASTM A789, ASTM A790, ASTM A268
- • Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85
- • Japanese Standard: JIS G3463-2006, JIS G3459-2012
- • Russian Standard: GOST 9941-81
- • GB Standard: GB14975, GB14976, GB95, GB13296, GB5310, GB9948, GB/T12771
Features
- Anti-corrosion (the degree is susceptible to the alloys contained), heat-resistance, good cold and hot working properties, good toughness, good comprehensive performances and wide application.
Applications
- Home appliances, electric appliances, construction materials, medical equipment, auto parts, petroleum, chemical application, agricultural irrigation, edible oil refinery factories, paper plants, shipyard, nuclear power plant etc.
Manufacturing Process
Round Bar
Analytic
Cut to Length
Centering
Heating
Perforation
Inspection of Size
Pickling
Inspection of Surface
Lubricating
Cold Drawing
(Cold Rolling)
Degreasing
Annealing
Straightening
Cut
Pickling / Passivating
Inspection
Analytic
Marking
Packing & Shipping
Drawing & Formula
Formula: m = (OD - THK) × THK (mm) × L (m) × 0.02491
* For 316, 316L, 310S, 309S, etc., ratio=0.02507
OD = Outer diameter, THK = Wall Thickness, L = Length
Tolerence
| NPS Designator | Tolerance, % from Nominal | |
|---|---|---|
| Over | Under | |
| ⅛ to 2½ incl., all t/D ratios | 20.0 | 12.5 |
| 3 to 18 incl., t/D up to 5% incl. | 22.5 | 12.5 |
| 3 to 18 incl., t/D > 5% | 15.0 | 12.5 |
| 20 and larger, welded, all t/D ratios | 17.5 | 12.5 |
| 20 and larger, seamless, t/D up to 5% incl. | 22.5 | 12.5 |
| 20 and larger, seamless, t/D > 5% | 15.0 | 12.5 |
| NPS [DN] Designator | Tolerance in %, from specified | |
|---|---|---|
| Over | Under | |
| ⅛ to 2½ [6 to 65] incl., all t/D ratios | 20 | 12.5 |
| Above 2½ [65], incl, t/D ≤ 5% | 22.5 | 12.5 |
| Above 2½ [65], incl, t/D > 5% | 15 | 12.5 |
| Group | Size, Outside Diameter, in. | Permissible Variations in Outside Diameter, in. (mm) | Permissible Variations in Wall Thickness, % | Permissible Variations in Cut Length, in. (mm) | Thin Walled Tubes | |
|---|---|---|---|---|---|---|
| Over | Under | |||||
| 1 | Up to ½ | ±0.005(0.13) | ±15 | ⅛(3.2) | 0 | ... |
| 2 | ½ to 1½, excl | ±0.005(0.13) | ±10 | ⅛(3.2) | 0 | less than 0.065 in. (1.65 mm) nominal |
| 3 | 1½ to 3½, excl | ±0.010(0.25) | ±10 | 3/16(4.8) | 0 | less than 0.095 in. (2.41 mm) nominal |
| 4 | 3½ to 5½, excl | ±0.015(0.38) | ±10 | 3/16(4.8) | 0 | less than 0.150 in. (3.81 mm) nominal |
| 5 | 5½ to 8, excl | ±0.030(0.76) | ±10 | 3/16(4.8) | 0 | less than 0.150 in. (3.81 mm) nominal |
| 6 | 8 to 12, excl | ±0.040(1.01) | ±10 | 3/16(4.8) | 0 | less than 0.200 in. (5.08 mm) nominal |
| 7 | 12 to 14, excl | ±0.050(1.26) | ±10 | 3/16(4.8) | 0 | less than 0.220 in. (5.59 mm) nominal |
Delivery State
| Delivery State Choice | Surface Condition |
|---|---|
| HFD: Hot finished heat treated, descaled | Metallically Clean |
| CFD: Cold finished heat treated, descaled | Metallically Clean |
| CFA: Cold finished bright annealed | Metallically Bright |
| CFG: Cold finished heat treated, ground | Metallically bright-ground, the type and degree of roughness shall be agreed at the time of enquiry and order b |
| CFP: Cold finished heat treated, polished | Metallically bright-ground, the type and degree of roughness shall be agreed at the time of enquiry and order b |
| Note: 1. If you require different deliver state than the above listed, kindly confirm with us. 2. In case of any enquiry or order, please kindly let us know any extra requirement not indicated here. |
|
Package
Plastic Bag
Wooden case
In CIVMATS, all of our stainless steel seamless pipe & tubes are packaged as per international standard to prevent any possible damage or loss. By default, we will use thick woven plastic bag to bundle the finished pipes together in batches. However, for some special pipes & tubes that are vulnerable to dirt, scratches, stress or rough handling, we will suggest wooden case for protection. Kindly note, wooden case can incur extra cost, not only its own cost, but also the increased freight cost, which is especially true for air transportation. For enhanced customer experience, we also provide dedicated package as per your special requirements.
Logistics
By Sea
By Air
By default, we will quote based on sea transportation, such as FOB, CFR, CIF and the like for most enquiries or orders. Quotation based on air transportation is also optional upon your request for urgent demands.
FAQ
Can you process SS seamless pipes & tubes into polished finish?
Yes, for stainless steel seamless pipe & tube, polished finish is also available, like simple rough polishing. For precise polishing, we can polish the pipes & tubes to # 240 and # 320 as per your demand. Stainless steel sanitary seamless tube is such an example. By default, SS seamless pipe & tube features pickled finish as many of our photos illustrate.
What is the standard length? Can I have the tubes/pipes cut into the length I want?
Our standard length of SS seamless pipe & tube is 5.8m or 6 meter for most overseas orders. We can also make the length as long as 12 or 13 meters for your reference.
Yes, we can cut pipes into the length you want, but this can incur extra cost. In case of order, please also indicate the cutting method you prefer. We have laser cutting, plasma cutting and water-jet cutting for your options.
Do you also have SS pipe fittings?
Yes, we have, like elbows, flanges, reducers, etc. For detailed information, please kindly refer to our product.
Where's your main market?
South America, South-East Asia, Middle-East, Europe and so on.
What's your package for SS seamless pipe & tube?
By default, our package is thick woven plastic bag, but we also provide wooden case or dedicated package as per your requirement. You can also refer to our pictures for better understanding.