904 L ASTM B 677 Pipe and Tubing Manufacturers in India, astm a 312 tp 904l

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Purnima Metal Treat is India's largest independent multi-metals pipe & tube supplier & stockholder. Our range covers 904 L ASTM B 677 Pipe and Tubing, mild steel, stainless steel, cold drawn, structural, tubular, galvanized tubes, pipe, black pipe, and welded tube and pipe.

Widely regarded as being the leading supplier of 904 L ASTM B 677 Pipe and Tubing in India, Purnima Metal Treat is the preferred choice for 904 L ASTM B 677 Pipe and Tubing in India, South & west Africa & Gulf countries.

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Purnima Metal Treat is a India based Stockholder of Pipe, Tube & Tubing of multiple Origins – Our stock Materials are from China, India, Malaysia and Western European Origins.

 904 L ASTM B 677 Pipe and Tubing

904 L ASTM B 677 Pipe and Tubing

904 L ASTM B 677 Pipe and Tubing Specification

904 L ASTM B 677 Pipes and Tubing

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Material Grades :

Stainless SteelASTM 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
Alloy SteelASTM A335 P1, P5, P9, P11, P12, P22, P91, ASTM A161, ASTM A199,
ASTM A200, ASTM A209, ASTM A213, ASTM A423
Carbon SteelA106 Gr. B/C, ASTM A53, ASTM A161, ASTM A179, ASTM A192,
ASTM A210, ASTM A556, API 5L Gr. B
Low TemperatureASTM A333, ASTM A334
Duplex/ Super duplexASTM A789, ASTM A269
Ferritic - Martenitic steelASTM A268
TitaniumASTM B338, ASTM B861
Nickel & Nickel AlloysASTM B161, ASTM B163, ASTM B165, ASTM B167, ASTM 407,
ASTM B423, ASTM B444, ASTM B622, ASTM B668, ASTM B729
Aluminium & Aluminium AlloyASTM B210, ASTM B234, ASTM B241
Copper & Copper AlloyASTM 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.

Corrosion Resistance

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.

Chemical Composition

Table 1.Composition ranges for 904L grade of stainless steel.

904Lmin. max.- 0.020- 2.00- 1.00- 0.045- 0.03519.0 23.04.0 5.023.0 28.01.0 2.0

Mechanical Properties

Table 2.Mechanical properties of 904L grade stainless steel.

GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B)Brinell (HB)
904L4902203570-90 typical-
Rockwell Hardness value range is typical only; other values are specified limits.

Physical Properties

Table 3. Typical physical properties for 904L grade stainless steel tube.

Elastic Modulus
Mean Co-eff of Thermal Expansion (µm/m/°C)Thermal Conductivity
Specific Heat 0-100°C
Elec Resistivity
0-100°C0-315°C0-538°CAt 20°CAt 500°C

Grade Specification Comparison

Table 4. Grade specifications for 904L grade stainless steel tubes.

GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Possible Alternative Grades

Table 5. Possible alternative grades to 904L stainless steel tubing.

GradeWhy it might be chosen instead of 904L
316LA lower cost alternative, but with much lower corrosion resistance.
6MoA higher resistance to pitting and crevice corrosion resistance is needed.
2205A very similar corrosion resistance, with the 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.)
Super duplex2507 has an higher corrosion resistance is needed, together with a higher strength than 904L.


Packaging & Shipping

Utmost care is taken towards Packing of the finished products so as to ensure that the resultant Coils, Foils, Tubes ,Pipes and Fittings reach in the same condition as desired by our valued customers.
Packing specifications for various products are:

  • Larger Dia Fusion Welded Pipes are packed with aluminium end caps in a wooden crates.
  • S.S. Automotive Exhaust Pipes & Scheduled pipes both are packed with plastic end caps in wooden crates.
  • Cold Drawn Seamless Stainless Tubes are packed with plastic end caps in a wooden box with an inside thermocoal covering.
  • Coils and Foils are packed in wooden crates.

 904 L ASTM B 677 Pipe and Tubing Packaging

Packed 904 L ASTM B 677 Pipe and Tubing

 Nickel Alloy Tube Packaging

Packed 904 L ASTM B 677 Pipe and Tubing

Other Packaging information:
  • Bundle Packing
  • Bundle Packing
  • Wooden Case
  • Wooden Case
  • Wooden Case for U Tubes
  • Reinforced by angle bar

Why us?

  • Stainless Steel Seamless Pipes & Tubes Manufacturer since 1996
  • The annual capacity of the plant equals about 12.000 tons
  • Specialized in Pipes & Tubes, Stainless Steel Pipe & Carbon Steel Pipe
  • We export seamless tubes / welded tubes everywhere in the world
  • We have our own warehouse of 10,000 feet, so we can offer best price in the market
  • Supplier and trader of IBR Materials like IBR approved Pipes, IBR Certified Tubes


  • Pipes up to 24" made in continuous production from coil
  • Pipes up to 80" made from single plates
  • Maximum thickness 40 mm


  • Contacts with major mills & stockists around the world.
  • Can offer ex-stock materials as well as mill delivery with nominal margins.
  • Complete in-house testing facilities viz. hydro, eddy current, UT, chemical analysis,
  • physical/mechanical, PMI, microscopic examination, etc…
  • Prime and genuine materials with co-relating original test certificates.

Available Stock at Purnima Metal Treat
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We have Exported Steel Pipe Tube / Tubing to over 60 countries including IndiaUnited Arab EmiratesKenyaQatarUSAMalaysiaSouth KoreaIndonesiaSingaporeUKBangladeshJapanChinaThailandTaiwanItalyIranVietnamPolandEgyptCanadaTurkeySri LankaPakistanSaudi ArabiaKuwaitRussiaNigeriaFranceDenmarkGermanyGreeceUkraineOmanSwitzerlandSouth AfricaRomaniaColombiaIraqAustraliaNetherlandsPortugalSpainBrazilNorwayParaguayAzerbaijanTrinidad & TobagoMexicoHong KongPhilippinesTunisiaBahrainSerbiaBelarus
List of Countries where Purnima Metal Treat supply Pipes & Tubes:-

List of Countries where Purnima Metal Treat supply Pipes / Tubes :-

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