Welded steel pipes
Usage: used for low pressure liquid delivery, such as water, gas, and oil.
Process:
Erw (electric resistance welded)
Hfi (high frequency induction)
Efw(electric fusion welded tube)
Lsaw (longitudinal submerge-arc welded) uo(uoe)íórb(rbe)íójco(jcoe)
Dsaw (double submerged arc welded)
Saw (spiral welded)
Ssaw (spiral submerged-arc welded)
Quality standard:
Erw hfi , efw, lsaw, dsaw:
Gb/t3091 welded steel pipe for low pressure liquid delivery
Gb/t9711 petroleum and natural gas industries--steel pipe for pipelines
Is: 3589 steel tubes for water and sewage
Is : 1978-1982 steel tubes for use in transportation of oil; gas & petroleum products
Bs: 1387 steel tubes for use for water, gas, air and steam
Astm a53 standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless
Din 2458 welded steel pipes and tubes
En10217 welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
Api 5l line pipe
In bundle, or according to your requirement
Seamless steel pipe for liquid transport
Usage: applicable to transport liquid, gas, oil etc.
Quality standard:
Gb/t 8163: seamless steel tubes for liquid service
Gb 3087: seamless steel tubes for low and medium pressure
Gb 5310: seamless steel tubes and pipes for high pressure boiler
Astm a106: standard specification for seamless carbon steel pipe for high-temperature service
Astm a179: standard specification for seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes
Astm a192: standard specification for seamless carbon steel boiler tubes for high-pressure service
Astm a333: standard specification for seamless and welded steel pipe for low-temperature service
Astm a335: standard specification for seamless ferritic alloy-steel pipe for high-temperature service
Jis g3452: carbon steel pipes for ordinary piping
Jis g3454: carbon steel pipes for pressure service
Bs 3059: steel boiler and superheater tubes
Din 1629: seamless circular tubes of non alloy steels with special quality requirements
Din 17175: seamless steel tubes for elevated temperatures
Api 5l: line pipe
In bundle or according to your requirements
Mechanical seamless steel tubing
Usage: applicable to the general structure, mechanical structure with seamless steel tubes.
Quality standard:
Astm a 53 standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless
Astm a519 seamless carbon and alloy steel mechanical tubing
Gb/t8162 seamless steel tubes for structural purposes
Jis g3441 alloy steel tubes for machine purposes
Jis g3444 carbon steel tubes for general structural purposes
Jis g3445 carbon steel tubes for machine structural purposes
Din 2391 seamless precision steel tubes
En10305 steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubes
En 10210:seamless structural steel pipes
Steel grade:
Astm a 53: grade a, grade b, grade c, type f, type e
Astm a519: 1010-1045, 4130-4142, 5135
Gb/t8162: 10, 20, 35, 45, 16mn, 12c rmo, 15crmo, 12c rl mov
Jis g3441: scm 415 tk, scm 418 tk, scm 420 tk, scm 430 tk, scm 435 tk, scm 440 tk
Jis g3444: stkm 11a, stkm 12, stkm 13, stkm 14, stkm 15, stkm 16, stkm 17, stkm 18
Stkm 19, stkm 20
Din 2391: st30si, st30a1, st35, st45, st52
En10305: e235, e355
En 10210: s235jrh; s275j0h, s275j2h; s355j0h, s355j2h; s275nh, s355nh; s275nlh, s355nlh
In bundle or according to your requirements
Hollow sections for structural purpose
Shape:
Hollow sections: square, rectangular, round, triangular, hexagonal, eliptical hollow sections
Scaffolding
Usage:
Hollow sections:
Construction: hall structure, sea trestle, airport structure, shipbuilding, security door frames, garage doors, strengthening liners of steel doors and windows, indoor partition walls, cable bridge structures and expressway safety guards, balustrade, decorating, residential, ornamental pipes
Automotive parts: motorcar case, car and bus manufacture, vehicles
Agriculture: agricultural equipment
Industry: machinery, solar stent, offshore oil field, mine equipment, electromechanical hardware, , heavy engineering, mining and resources, process engineering, materials handling, mechanical parts
Traffic: walking rails, roll-up doors, guardrail, plaza structure, signage, road furniture, fencing
Logistics storage: supermarket shelves, containers, transport industries, commercial construction
Other: sports apparatus, leisure equipment, furniture, school furniture
Scaffolding tube:
Material storage racks, pallets, hydraulic platforms, trusses, columns, purlins, greenhouse stands towers
Quality standard:
Hollow sections:
Gb/t 13793 longitudinal electric resistance welded steel tubes
Gb/t 6728 cold formed steel hollow sections for general structure--dimensions, shapes, weight and permissble deviations
Astm a500 cold formed welded and seamless carbon steel steel structural tubing in round and shapes
Astm a 53 standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless
En 10210 hot finished structural hollow sections of non-alloy and fine grain structural steels
En 10219 cold formed welded structural hollow sections of non-alloy and fine grain steels
Jis g 3466 carbon steel square for general structural purposes
Bs 1387 steel tubes for use for water, gas, air and steam
In bundle or according to your requirements
