Project Description

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We are committed to integrate steel resources in china and serve the global steel market. We have 15+ years of experience in steel researching, production, managing and sales.

Our ability to purchase materials directly from leading mills will give you the competitive edge. Any Questions Just Call +86-731-89903933

904L Stainless Steel Tube

Fushun Metal is manufacturer of 904L seamless or welded stainless steel tube pipe in china. We produce 904L tube with seamless(OD 12-377mm;WT 1-30mm) and welded(OD 10-2000mm;WT 1-40mm).

Stainless Seamless Fluid Pipe Quality Control

  1. Raw materials pipe blank quality classification: high quality, medium, economical
  2. Raw materials inspection after receive in factory
  3. After pickled, tube will be grinded careful to less defect
  4. Multiple cold drawn/rolled process for precision dimension
  5. Standard heat-treated of continuous annealed/solution for better property, intergranular corrosion
  6. Full Inspection: ET, UT, Hydraulic Test, Penetration Test, Grinded, Sand Blast, Print Making

*Besides bleow, we can supply comfortable price with equivalents quality for you! Welcome contact us.

We also can supply other kinds of:

  • Seamless Stainless Steel Pipe & Tube
  • Welded Stainless Steel Pipe & Tube
  • U Type Stainless Steel Pipe & Tube
  • Coil Type Stainless Steel Pipe & Tube(Max 300meter), seamless or welded
  • Annealed Pickled AP Stainless Steel Pipe & Tube (Ra ≤5μm)
  • Bright Annealed BA Stainless Steel Pipe & Tube (Ra ≤8μm)
  • Mechanical Polished MP Stainless Steel Pipe & Tube (Ra ≤8μm)
  • Electro Polished EP Stainless Steel Pipe & Tube (Ra ≤25μm)
  • Sanitary Stainless Steel Pipe & Tube
  • Capilllary Stainless Steel Pipe & Tube
  • Instrument Stainless Steel Pipe & Tube

Specification

Steel Grade 904L
Standard
OD range Seamless:12-377mm

Welded:10-2000mm

WT range Seamless:1-30mm

Welded:1-40mm

Length Range 4-9meter; Random Length; Fixed Length
Forming Hot finished; Cold Rolled; Cold Drawn; ERW welded
Heat-treat Solution
Surface Acid Pickled; Polished
Inspection Chemical; Tensile; Hardness; UT; Eddy Current
Package Steel rope or wooden case
MOQ 1 tons
Delivery Time 10-30 days
Trade Item FOB CIF CFR PPU PPD

alloy 904L tubing (UNS N08904) for use in applications that require moderate to high corrosion resistance. Alloy 904L is a low carbon high alloy austenitic stainless steel, originally developed to resist corrosion in dilute sulfuric acid. Because of the combination of chromium, nickel, molybdenum and copper, this grade has greatly improved resistance to strong reducing acids, particularly sulfuric acid. Alloy 904L tubing is also extremely resistant to chloride attack from both pitting/crevice corrosion and stress corrosion cracking. Alloy 904L is non-magnetic in all conditions, possesses amazing toughness, and has good formability and weldability.

Because of these properties, one can find alloy 904L tube in many applications. These range from utility scrubber assemblies to acid and fertilizer production equipment, pulp and paper processing, seawater cooling facilities. Used in processes containing sulfuric or phosphoric acids, 904L displays its excellent resistance to corrosion from those acids. The paper, gas, pharmaceutical and chemical industries also use 904L for its resistance and use to 400-450 degrees C. Alloy 904L tubing can be welded, machined, heat treated, annealed, hardened and cold worked for many purposes.

UNS NO8904, commonly known as 904L, is a low carbon high alloy austenitic stainless steel which is widely used in applications where the corrosion properties of AISI 316L and AISI 317L are not adequate.

The addition of copper to this grade gives it corrosion resistant properties superior to the conventional chrome nickel stainless steels, in particular to sulphuric, phosphoric and acetic acids. However, there is limited use with hydrochloric acids. It also has a high resistance to pitting in chloride solutions, a high resistance to both crevice and stress corrosion cracking. Alloy 904L performs better than other austenitic stainless steels due to the higher alloying of nickel and molybdenum.

The grade is non-magnetic in all conditions and has excellent formability and weldability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures.

The high chromium content promotes and maintains a passive film which protects the material in many corrosive environments.904L has a greater resistance to precipitation of ferrite and sigma phases on cooling and welding than other stainless steels containing molybdenum such as 316L and 317L. There is no risk of intercrystalline corrosion on cooling or welding due to the low carbon content. Its maximum service temperature is at 450°C.

This grade is particularly useful in control and instrumentation tubing applications where 316 and 317L are not suitable.

904L stainless steel combines molybdenum and copper with iron for tremendously increased resistance to reducing acids like sulphuric acid. It stands up extremely well to chlorides in the environment for low pitting and crevice corrosion, as well as stress corrosion cracking.

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:

»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.

Applications

904L stainless steel is widely used in the chemical, pharmaceutical, oil and gas industries. Typical applications include tanks, valves, heat exchangers, flanges and manifolds. The addition of copper to the composition of 904L stainless steel aids its suitability for components such as tanks and other products used in handling sulphuric and phosphoric acid.

Quality Standard

ASTM A182 Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts

EN 10088 part3 stainless steel

Available tube product forms

Straight

Coiled

Seamless

Typical Applications

Seawater cooling equipment

Chemical processing for sulphuric, phosphoric and acetic acids

Gas washing

Condenser tubes

Control and instrumentation

Heat exchangers

Typical manufacturing specifications

ASTM A213

ASTM A269

ASTM A312

BS EN 10216 pt.5

Also individual customer specifications.

Industries predominantly using this grade

Chemical processing

Oil and gas

Pharmaceutical

Technical Data

Mechanical Properties

Temper Annealed
Tensile Rm 71 ksi (min)
Tensile Rm 490 MPa (min)
R.p. 0.2% Yield 32 ksi (min)
R.p. 0.2% Yield 220 MPa (min)
Elongation (2” or 4D gl) 35 % (min)

Physical Properties (Room Temperature)

Specific Heat (0-100°C) 450 J.kg-1.°K-1
Thermal Conductivity 11.5 W.m -1.°K-1
Thermal Expansion 15.8 μm/μm/°C
Modulus Elasticity 190 GPa
Electrical Resistivity 9.52 μohm/cm
Density 7.95 g/cm3

Chemical Composition Of SS 904L Pipes & SS 904L Tubes:

Steel Grade C Si Mn P S Cr Ni Mo Cu N
904L 0.02 max 1.0 max 2.0 max 0.040 max 0.030 max 19.0-23.0 23.0-28.0 4.0-5.0 1.0-2.0 0.10 max

Mechanical properties Of SS 904L Pipes & SS 904L Tubes:

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 Of Stainless Steel 904L Pipes & Stainless Steel 904L Tubes:

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 specifications

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.

Corrosion Resistance

Where a level of resistance to pitting corrosion better than 316 is required 904L stainless steel may be suitable. With its high nickel content at 25% it offers improved resistance to chloride stress corrosion cracking compared to other austenitic grades such as 304.

Welding

904L stainless steel can be welded using common fusion and resistance methods. A more highly alloyed filler is recommended to give the optimum corrosion properties in the weld. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding 904L stainless steel.

Material Alloy 904L 1.4539 N08904 X1NiCrMoCu25-20-5
Alloy 904l Tubing Standards ASTM B/ASME SB674 / SB677, ASTM A312/ ASME SA312
Standard Specification for UNS N08904 Tubes ASTM B677 UNS N08904, ASTM B673 UNS N08904, ASTM B674 UNS N08904
Seamless Tube Size 3.35 mm OD To 101.6 mm OD
Welded Tube Size 6.35 mm OD To 152 mm OD
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Schedule SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
AISI 904l Tube wall thickness 0.020″ –0.220″, (special wall thicknesses available)
Manufacturing Specifications ASTM A312

ASTM A213

ASTM A269

BS EN 10216 pt.5

As per customer’s specifications.

Length Single Random, Double Random, Standard & Cut length
Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
904L Steel Pipe Form Straight, Coiled, Square Pipes/ Tubes, Rectangular Pipe/ Tubes, Coiled Tubes, Round Pipes/ Tubes, “U” Shape for heat exchangers, Hydraulic Tubes, Pan Cake Coils, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc.
904l Stainless Tube Type Seamless, ERW, EFW, Welded, Fabricated
End Plain End, Beveled End, Treaded
Marking All Stainless Steel 904L tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Application Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger
Value Added Service Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Specialize in 904L Stainless Steel Capillary Tube & Other Odd Size
904L Stainless Steel Heat Exchanger & Condenser Tubes
Top 10 Manufacturer of 904L Tubes Posco Korea, VDM Germany, Tubacex, Nippon Steel Corporation, Sumitomo Japan, Indian Mills, Walsin, SP Metal, RONSCO, BAOSTEEL, JISCO, TISCO
Test Certificate Manufacturer Test Certificate
Laboratory Test Certificate from Govt. Approved Lab.
Under Third Party Inspection
Manufacturers of 904L Stainless Steel Tubes & Tubing Sumitomo Metals, Japan

Nippon Steel Corporation, Japan

Kobe Special Tube, Japan

Sanyo Special Steel, Japan

Tubacex Tubos Inoxidables S.A., Spain

Schoeller Bleckmann, Austria

Seah Steel Corporation, Korea

904L Stainless Steel Seamless Tubes Surface Finish

Surface Finish Internal Surface(ID) Exterbal Surface(OD)
Roughness Average(RA) Roughness Average(RA)
μ inch μm μ inch μm
AP Annealed & Pickled Not defined Not defined 40 or Not defined 1.0 or Not defined
BA Beight Annealed 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
MP Mechanical Polish 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
EP Electro Polish 15,10,7,5 0.38,0.25,0.20;0.13 32 0.8

Experienced 15+ Years

Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets.

We Can Supply Follows Products with High Quality:

  1. Cold Rolled Steel Tube
  2. Cold Drawn Steel Tube
  3. Hollow Bar
  4. Honed Tube
  5. Plated Tube
  6. Plated Bar
  7. Boiler Tube

All Products According Quality Standard Strictly:

  1. ASTM: ASTM A519, ASTM A513.
  2. JIS:JIS G3441, JIS G3445, JIS G3466, JIS G3459.
  3. DIN: DIN1626, DIN1629, DIN2391, DIN2393, DIN2448, DIN2458.
  4. EN: EN10305.
  5. BS: BS6323.

Wide Range of Pipes to Fit Your Industry:

  1. OD from 5mm to 820mm.
  2. Wall Thickness from 0.1 to 100mm.
  3. Length up to 50mtr per pc.

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