ARK Steel Tube | Steel Tube Solution | Steel Tube Specialist

Ark Steel Tube is a leading manufacturer and supplier of steel tube products, KWK STEEL is the subsidiary of Ark with over 12 years of experience. We are the preferred global solutions provider for stainless steel, duplex steel, carbon steel, alloy steel and special nickel alloy tubing products.

What's unique about us as a manufacturer is that we have the capability to manufacture both seamless and welded tubes, in a wide range of stainless steel, alloy, carbon, and nickel alloys. This gives our customers great product flexibility with the choice between straight lengths or coils. With an experienced sales staff, onsite quality team, and dedicated account managers, we are able to provide reliable products backed by outstanding service from order to delivery. Whatever application you have in mind, we'll do our utmost to meet and surpass your expectations.

What materials can we provide?
Ferrite/Martensite:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439, TP446, etc.
Alloy Steel:
T1, T1a, T2, T5, T9, T11, T12, T17, T21, T22, T23, T24, T36, T122, P12, P5, P91, 15Mo3, 12CrMo, 15CrMoG, 1Cr5Mo, etc.
Austenitic/Super Austenitic Steel:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S, 253MA, 330, 904L, S31254, XM-19, etc.
Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219, N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925, N08926, N010276, N06022, etc.
Duplex/Super Duplex Stainless Steel:
S31803, S32304, S31500, S32550, S32750, S32760, etc.
Carbon steel tube:A179,A192,A210,DIN17175,etc.