904L ASTM B 677 Pipes and Tubing Manufacturer
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904L ASTM B 677 Pipes and Tubing
We are leading stocking distributors of industrial pipes & tubes, with strategic inventories for quick call-outs. With our extensive knowledge, we can support your company from maintenance to construction of new projects.we are one of the major Indian manufacturers, exporter & suppliers of 904L ASTM B 677 Pipes and Tubing & OCTG, CRA (Corrosion-Resistant Alloy) Seamless Tubes, Stainless Steel , Super Duplex , Duplex , Welded & Semaless, Carbon Steel Seamless Pipes, Tubes, Capillary Pipes & ‘U’ Tubes for applications in oil & gas, LNG, Thermal & Nuclear Power Plants, Chemical Industries, Fertilizers Plants, (petro) chemical, shipbuilding, desalination, water treatment, energy industries, EPC and Pipes for General Engineering Purpose.
We operates according to an ISO 9001:2008 certified quality programme. A complete range of testing facilities on-site contributes to consistent quality control.
904L is a non-stabilised low carbon high alloy austenitic stainless steel pipe. The addition of copper to this grade gives it greatly improved resistance to strong reducing acids, particularly sulphuric acid. It is also highly resistant to chloride attack both pitting / crevice corrosion and stress corrosion cracking.
Material Grades :
||ASTM A312 TP 304/L/H, 310/H, 316/L/H, 316Ti, 321/H, 347/H, 904L;
ASTM A213, ASTM A269, ASTM A271, ASTM A376, ASTM B677
||ASTM A335 P1, P5, P9, P11, P12, P22, P91, ASTM A161, ASTM A199,
ASTM A200, ASTM A209, ASTM A213, ASTM A423
||A106 Gr. B/C, ASTM A53, ASTM A161, ASTM A179, ASTM A192,
ASTM A210, ASTM A556, API 5L Gr. B
||ASTM A333, ASTM A334
|Duplex/ Super duplex
||ASTM A789, ASTM A269
|Ferritic – Martenitic steel
||ASTM B338, ASTM B861
|Nickel & Nickel Alloys
||ASTM B161, ASTM B163, ASTM B165, ASTM B167, ASTM 407,
ASTM B423, ASTM B444, ASTM B622, ASTM B668, ASTM B729
|Aluminium & Aluminium Alloy
||ASTM B210, ASTM B234, ASTM B241
|Copper & Copper Alloy
||ASTM B43, ASTM B68, ASTM B75, ASTM B88, ASTM B111, ASTM B315,
ASTM B395, ASTM B466
Other properties included:
– Good resistance to pitting and crevice corrosion ability
– High resistance to stress corrosion cracking capacity
– Good resistance to intergranular corrosion ability
– Good machinability and weldability
This grade is non-magnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperature.
Although originally developed for its resistance to sulphuric acid it also has a very high resistance to a wide range of environments.
904L can be successfully welded by all standard methods.
904L is a high purity, low sulphur grade, and as such will not machine well. Despite this the grade can be machined using standard techniques.