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Seamless Tube require the precision of size tolerance, which are mainly used in ships, marine platforms, bullet train, aerospace equipment and so on for the fine dense card sets connected instrument tube, hydraulic brake tube, oil well control pipeline, chemical injection pipe and electric heating steam heating tube.
Advanced bright annealing process is used in a closed furnace under the protection of argon and nitrogen to keep the surface not exposed to oxygen, maintaining a bright and clean original metal surface inside and outside. Precise temperature control (±5ºC) ensures even annealing and optimal mechanical performance for bending and reaming treatments.
Quality is ensured through an automatic heat piercing production line, temperature-controlled natural gas annealing furnace, precision cold rolled equipment, and automatic picking passivation equipment. Testing capabilities include direct-reading spectrometers, ultrasonic fault detectors, eddy current flaw detectors, hydrostatic test machines, and universal testing machines.
304, 1.4301, 304L, 1.4306, S30403, 304H, S30415, 316L, 1.4401, 1.4404, 316Ti, S31635, 321, 321H, 1.4541, 317, 317L, 347, 347H, 310, 310S, 309S, etc.
N08904(904L), 1.4539, S31254, S254Mo, 1.4547, S30432, S31042, N08367(6Mo), S30803/253Ma
S31500, S32101, 1.4162, S32304, 1.4362, S31803, S32205, 1.4462, S32750, 1.4410, 2507, S32760, 1.4501
Alloy B/B2/B3, Alloy C4/C22/C276/C2000, Alloy G30/G35, Alloy 600/601/617/625, Alloy 718, Alloy 800/800H/800HT/825, Alloy 400/K500, 254SMO, 17-4PH, 17-7PH.
GR1, GR2, GR3, GR4, GR5, GR7, GR9, GR11, GR12
| Products Name | Size Range | Max Length | Processing Technic | Delivery Status | Standard | Surface |
|---|---|---|---|---|---|---|
| SEAMLESS TUBE | OD: 2-38.1mm T.W: 0.2~3mm |
Max 38M | Cold-rolled or Cold Draw | Annealing/Bright Annealing | ASTM B622, B829, SB163, SB165, SB167, SB407, SB423, SB444, SB622, SB668, SB677, SB690, SB729 | Pickling, Bright Tube, Passivation, Polishing |













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