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904L stainless Steel Pipes Tubes      
904L is a non-stabilised low carbon high alloy austenitic stainless steel. 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. 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 temperatures. 904L does have very substantial contents of the high cost ingredients nickel and molybdenum. Many of the applications in which this grade has previously performed well can now be fulfilled at lower cost by duplex stainless steel 2205 (S31803 or S32205), so it is used less commonly than in the past.

904L Stainless Steel Pipes and Tubes Product Range
904L Stainless Steel Pipes and Tubes Specifications: ASTM A/ASME SA 269/677 904L Stainless Steel Pipes and Tubes Sizes (Seamless): 1/2" NB - 8" NB
904L Stainless Steel Pipes and Tubes Sizes (ERW): 1/2" NB - 24" NB
904L Stainless Steel Pipes and Tubes Sizes (EFW): 6" NB - 100" NB  

904L Stainless Steel Pipes and Tubes Wall Thickness available:
Schedule 5S - Schedule XXS (heavier on request)

» 904L Stainless Steel Pipes and Tubes Other Materials Testing:

 NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.

»904L Stainless Steel Pipes and Tubes Dimensions:
 All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.

Key Properties
These properties are specified for flat rolled product (plate, sheet and coil) in ASTM B625. Similar but not necessarily identical properties are specified for other products such as pipe, tube and bar in their respective specifications.
Composition
Table 1. Composition ranges for 904L grade of stainless steels.


Grade

C

Mn

Si

P

S

Cr

Mo

Ni

Cu

904L

min.
max.

-
0.020

-
2.00

-
1.00

-
0.045

-
0.035

19.0
23.0

4.0
5.0

23.0
28.0

1.0
2.0

Mechanical Properties
Table 2. Mechanical properties of 904L grade stainless steels.


Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B)

Brinell (HB)

904L

490

220

35

70-90 typical

-

Rockwell Hardness value range is typical only; other values are specified limits.

Physical Properties
Table 3. Typical physical properties for 904L grade stainless steels.


Grade

Density
(kg/m3)

Elastic Modulus
(GPa)

Mean Co-eff of Thermal Expansion (µm/m/°C)

Thermal Conductivity
(W/m.K)

Specific Heat 0-100°C
(J/kg.K)

Elec Resistivity
(nΩ.m)

0-100°C

0-315°C

0-538°C

At 20°C

At 500°C

904L

8000

200

15

-

-

13

-

500

850

Grade Specification Comparison
Table 4. Grade specifications for 904L grade stainless steels.


Grade

UNS No

Old British

Euronorm

Swedish SS

Japanese JIS

BS

En

No

Name

904L

N08904

904S13

-

1.4539

X1NiCrMoCuN25-20-5

2562

-

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.


Grade

Why it might be chosen instead of 904L

316L

A lower cost alternative, but with much lower corrosion resistance.

6Mo

A higher resistance to pitting and crevice corrosion resistance is needed.

2205

A 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 duplex

Higher corrosion resistance is needed, together with a higher strength than 904L.

Corrosion Resistance
Although originally developed for its resistance to sulphuric acid it also has a very high resistance to a wide range of environments. A PRE of 35 indicates that the material has good resistance to warm sea water and other high chloride environments. High nickel content results in a much better resistance to stress corrosion cracking than the standard austenitic grades. Copper adds resistance to sulphuric and other reducing acids, particularly in the very aggressive "mid concentration" range.
In most environments 904L has a corrosion performance intermediate between the standard austenitic grade 316L and the very highly alloyed 6% molybdenum and similar "super austenitic" grades.
In aggressive nitric acid 904L has less resistance than molybdenum-free grades such as 904LL and 310L.
For maximum stress corrosion cracking resistance in critical environments the steel should be solution treated after cold work.
Heat Resistance
Good resistance to oxidation, but like other highly alloyed grades suffers from structural instability (precipitation of brittle phases such as sigma) at elevated temperatures. 904L should not be used above about 400°C.
Heat Treatment
Solution Treatment (Annealing) - heat to 1090-1175°C and cool rapidly. This grade cannot be hardened by thermal treatment.
Welding
904L can be successfully welded by all standard methods. Care needs to be taken as this grade solidifies fully austenitic, so is susceptible to hot cracking, particularly in constrained weldments. No pre-heat should be used and in most cases post weld heat treatment is also not required. AS 1554.6 pre-qualifies Grade 904L rods and electrodes for welding of 904L.
Fabrication
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.
Bending to a small radius is readily carried out. In most cases this is performed cold. Subsequent annealing is generally not required, although it should be considered if the fabrication is to be used in an environment where severe stress corrosion cracking conditions are anticipated.
Applications

  • Typical applications include
  • Processing plant for sulphuric, phosphoric and acetic acids
  • Pulp and paper processing
  • Components in gas scrubbing plants
  • Seawater cooling equipment
  • Oil refinery components
  • Wires in electrostatic precipitators


  • 904L Stainless Steel Pipe and Tube Packing

    904L Stainless Steel Seamless Pipes and Tubes is sleeved into plastic bag individually, pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

    SS 904L ASTM A312 Seamless Pipe packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.

    Delivery: Within 10-25days or asap if we have enough stock

    Types of Packaging:
    • - Bundles (hexagonal)
    • - Wooden Boxes
    • - Crates (steel/wooden)
    • - Special crates for U-Bend tubes with each radius separated
    • - Packaging for SS 904L ASTM A312 Seamless Pipe as per customer's requirements
    Special Features:
    • - Each bundle covered with plastic for protection against extreme weather.
    • - End of SS 904L ASTM A312 Seamless Pipe protected by plastic caps.
    • - Bundles strapped with plastic strips.
    • - Each radius of U-Bend tube separated by a separator.
    • - Packaging list (laminated) placed with box/crate.

    • 904L Stainless Steel Seamless Pipe Sizes Available in Stock with Price
      • 1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 3/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 1" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 1-1/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 1-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 2-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 3" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 3-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 5" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 6" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 8" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 10" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 12" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 14" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 16" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
      • 18" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS

      904L Stainless Steel Seamless Tube Sizes in Thickness SWG/BWG Available in Stock with Price
      • 1/4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 5/16" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 3/8" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 1/2" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 3/4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 1" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 1-1/4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 1-1/2" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 1-3/4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 2" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 2-1/4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 2-1/2" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 2-3/4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 3" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 3-1/2" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 4" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 4-1/2" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
      • 5" OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge

      We export 904L Stainless Steel Seamless Pipe and Seamless Tube to Iran, Iraq, Oman, Qatar, Albania, Muscat, Bahrain, Turkey, Egypt, Maldives, Italy, UAE, Bahrain, Indonesia, Australia, Kuwait, Saudi Arabia, South Africa, Germany, UK, Denmark, Canada, USA, Peru, Brazil, Nizeria, Mexico, Venezuela (Latin America), South America, Russia, kazakhstan etc.


      Raaj Sagar Steels is a well known worldwide exporter of 904L Stainless Steel Seamless Pipes and Tubes, Raaj Sagar Steels is committed to provide each and every customer with the highest standard of customer service. We deals in 904L Stainless Steel Seamless Pipes and Tubes in India & Overseas, offering a wide range of 904L Stainless Steel Seamless Pipes and Tubes.


      We Keep Stock:




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