Precision cold-drawn stainless steel seamless coil
Product Name: Precision cold drawn stainless steel bright seamless coil (whole roll pure seamless)
Production process: first cold rolling and then cold drawing and winding.
Surface treatment: vacuum bright annealing (the vacuum bright annealing process is used, the inner and outer surfaces of stainless steel tubes will not contact with oxygen, and no oxide skin will be produced, making the inner and outer surfaces of stainless steel coils cleaner, brighter and more delicate)
Delivery condition: Soft (HRB≤90)
Coil material: 304/304L / 316L / 321/317L / 2205
Production standard: ASTM (ASME) SA/A312 /A213 /A269 and DIN, GB, JIS.
Coil specifications: Outer diameter: Φ4mm-Φ25.4mm, wall thickness: 0.7mm-2.11mm.
Tolerance range: Outer diameter: ±0.1mm, wall thickness: ±10%.
Coil length: 1.1: depending on the outer diameter and wall thickness, the production weight of a seamless coil can reach about 120KG;
1.2: The length of stainless steel coil is converted by the theoretical calculation formula of stainless steel tube according to the outer diameter and wall thickness of the demand;
1.3: Solemnly state: the whole roll of seamless coil without welding points;
1.4: According to demand, it can also be welded with multiple stainless steel seamless coils into ultra-long stainless steel coils over several thousand meters.
Finished product inspection: water pressure test (10MPa-35MPa)/air pressure seal test/eddy current test.
Inkjet identification: according to customer requirements.
Quality control system: ISO9001:2015 / ISO14001:2015 / ISO 45001:2018 / PED
Packing: Using woven bag packing or plywood box, plywood wood shaft, convenient transportation and storage; The finished stainless steel coil will be wrapped into a roll or wrapped in a wooden shaft, which is convenient for sea, land and air transportation, reducing transportation costs and facilitating customer inventory storage.
Delivery time: 2.1: T/T settlement, can be settled with kg price and rice price;
2.2: The production cycle of stainless steel seamless coil with a single roll weight less than 30KG is about 25-30 days;
2.3: stainless steel seamless coil single roll weight 30KG-50KG production cycle is about 35-45 days;
2.4: Stainless steel seamless coil single roll weight 50KG-120KG production cycle in about 50-75 days.
Product advantages: stainless steel bright coil can be cut and bent according to the required length requirements in use, reducing waste and reducing costs. Especially in the pipeline installation to save installation joints, improve safety performance. In the hydraulic system to reduce the risk of system leakage, seamless coil will be a good choice, greatly reduce the use of joints during the installation process, the safety of the entire pipeline system has been completely improved, and the safety of the system operation has been strengthened.
Scope of application: Stainless steel coil is widely used in oil drilling, shipbuilding, aerospace and petrochemical refining equipment, spiral wound tube heat exchanger, wound tube heat exchanger and cold treatment of chemical industry, gas pipeline, fluid pipeline, steam insulation cable, stainless steel tracing coil (tracing coil), high pressure fluid pipeline, stainless steel insulation insulation cable, PVC sheath protection of anti-corrosion stainless steel cable, umbilical cable and other industries.
We can provide stainless steel tubes upon request.