Commodity

Precision Cold Drawn Stainless Steel Seamless Coiled Tubes

Production Process

Cold drawing(cold-drawn)

Surface Finish

Vacuum bright annealing (adopting vacuum bright annealing process, the inside and outside surface of stainless steel pipe will not contact with oxygon, and no oxide skin will be roduced, so that the surface of stainless steel coiled tubes will be cleaner, brighter and more delicate)

Delivery Status

Soft state (HRB≤90)

Steel Grade

TP304 / TP304L / TP316L / TP321 / TP317L / 2205

Standard

ASTM (ASME) SA / A312 / A213 / A269 and DIN, GB, JIS.

Size

OD 3/16" - 1 1/4" (4.76mm-31.3mm), WT 0.028"- 0.083"(0.7mm-2.11mm).

Tolerance

Outer Diameter: ±0.08mm(0.00315"), Wall Thickness: ±10%

Length

1.1: According to the different outer diameter and wall thickness, the weight of one coil of seamless coiled tubes is about 80kgs-100kgs.
1.2: Please Note: The longer the length of seamless coiled tubes, the more expensive the price is. The most economical price is that the weight of single coil is less than 28kgs.
1.3: According to the required outer diameter and wall thickness, the length of stainless steel seamless coiled tubes in converted by the theoretical calculation fomula of stainless steel tube.
1.4. Solemnly Note: There is no welding point is the whole coils of seamless coiled tubes.
1.5. According to the demand, multi coils stainless steel seamless coiled tubes can also be used to form super long stainless steel coil tubes of several thousand meters by butt welding.

Testing

Hydrostatic Test / Air Pressure Airtight Detection / Eddy Current Testing

Marking on tubes

As Customer' s Requirement.

Certification

ISO9001:2015 / ISO14001:2015 / ISO45001:2018 / HSE / PED

Delivery

2.1. Both can be in ton price and per meter price or per foot price.
2.2. The production cycle of stainless steel seamless coiled tubes with single coil weight less than 30kgs is about 25-45 days.
2.3. The single coil weight of stainless steel seamless coiled tubes is 30kgs-50kgs and the production cycle is about 60-70 days.
2.4. The single coil weight of stainless steel seamless coiled tubes is 50kgs-100kgs and the production cycle is about 75-100 days.

Packing

Packed with woven bags or plywood case,plywood spool, convenient for transportation and storage. The finished stainless steel coiled tubes with be wound into a roll and packed into plywood case, or it's wrapped inplywood spools. Maritime, ground and air transport are convenient. Reduce transportation costs and facilitate customer inventory storage.

Advantages

Stainless steel bright coiled tubes can be cut and bent according to the required length in use, which can reduce waste and cost. Especially in the installation of the pipeline. The installation joint is saved and the safety performance is improved. Especially in the hydraulic system to reduce the risk of system leakage. The seamless coiled tubes will be the best choice, greatly reducing the use of joints in the installation process, the safety of the entire pipeline system is completely improved and strengthened the security of the system operation.

Application Scope

Stainless steel coiled tubes is widely used in oil drilling, shipbuilding, aerospace and petrochemical oil refining equipment, spiral wound heat exchanger and chemical industry of cold treatment, gas transmission pipeline, fluid pipeline, steam insulation pipe cable, stainless steel heat tracing coiled tubes, high pressure fluid pipeline, stainless steel thermal insulation pipe cable, anticorrosive stainless steel pipe cable and umbilical cord protected by PVC sheath pipe and cable industries.

Stainless Steel Seamless Coiled Tubes can be provided according to the customer's requirements.

 Peeling lines

2

         Φ50-200mm

 Piercing lines

6

         Φ60-200mm

 Cold drawing lines

26

         Φ6-850mm

 Cold rolling lines

16

         Φ15-355mm

 Straightening machine

6

         Φ12-426mm

 Annealing furnace

2

 Pickling pool

8