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Stainless Steel 904L Pipe & Tube

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904L Stainless Steel Pipe Supplier

Stainless Steel 904L Pipe & Tube

At Sachin Steel Center, we are one of the leading 904L stainless steel pipe suppliers in India. We proivde high-quality stainless steel 904L pipes and tubes that are designed to perform reliably even in the most aggressive environments. We ensure every product meets strict international standards while also offering customization to suit specific project requirements.

Our SS 904L pipes are manufactured using premium raw materials and advanced production techniques, giving them exceptional resistance to stress corrosion cracking, intergranular corrosion, and pitting in chloride-rich conditions. The unique alloy composition of 904L, containing chromium, nickel, molybdenum, and copper, makes it ideal for applications in many industries. We also supply a wide range of 904L stainless steel tubes, available in round, square, rectangular, and hollow forms, ensuring versatility for diverse industrial applications. Our tubes are valued for their precision, durability, and ability to handle corrosive fluids and gases with ease. With an extensive stock range, adherence to ASTM and ASME standards, and the ability to deliver most reliable products. Each SS 904L pipe and tube undergoes rigorous testing, including hydraulic tests and dimensional checks, to ensure flawless performance. Our dedicated team works closely with clients to understand their technical requirements and provide solutions that meet their needs. With years of experience in serving global markets, we have built a strong reputation not only for supplying superior materials but also for providing unmatched customer service and support.

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Table Of Content

Why Choose Stainless Steel 904L Pipe?

904L Stainless Steel Pipes and Tubes are high-alloy, low-carbon austenitic grades designed for superior performance in highly corrosive environments. Known for their excellent resistance to strong reducing acids, chlorides, and pitting corrosion, these products are widely used across industries such as chemical processing, oil & gas, marine engineering, and pharmaceuticals. The unique chemical composition of SS 904L pipe includes high levels of chromium, nickel, molybdenum, and copper, which provide outstanding protection against stress corrosion cracking and intergranular corrosion.

Available in both seamless and welded forms, 904L stainless steel tubes and pipes deliver reliable performance under high-pressure and high-temperature conditions. The grade is fully non-magnetic, offers excellent formability and weldability, and maintains toughness even at sub-zero temperatures. Standards such as ASTM 904L, ASTM B673, and TP904L ensure consistency in quality, making these pipes and tubes suitable for critical industrial applications.

Whether it’s seamless tubes for heavy-duty applications or welded pipes for economical solutions, 904L is trusted for its durability and long service life. With its superior corrosion resistance, especially in sulfuric, phosphoric, and other aggressive acids, ASTM 904L pipes and tubes are the preferred choice for industries that demand strength, safety, and reliability.

Types of SS 904L Pipe

seamless-pipes

AISI 904L EFW Pipe

Welded Pipe

SUS 904L Polished Pipe

seamless-tubes

INOX 904L Round Pipe

Welded Tube

Schedule 10 SUS904L Stainless Steel Pipe

Rectangular Pipe

DIN 1.4539 Rectangular Pipe

Square Pipe

UNS N08904 Square Pipe

Request Quote on Types of SS 904L Pipes
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904L Austenitic Stainless Steel Pipes, Stainless Steel 904L ERW Pipes, ASTM A312 Stainless Steel 904L Welded Pipe, Stainless Steel N08904 Seamless Pipe, Stainless Steel ASTM A312 TP904L Pipe, Stainless Steel 904L ERW Pipes

904L Stainless Steel Pipe Specification

Standard Specification ASTM A 312/ ASME SA 312/ A790/ SA790/ EN10216-5
Size ½” to 6” NB Sch 10s, 40s, & 80s, 160s
Wall Thickness 0.1 – 60 mm
SS Seamless Pipe Length
  • Single Random Length 5to7 mtr
  • Double Random Length 10-12 mtr
Seamless SS Pipe Surface Finish Cold Finish, Bright, Polished, Annealing, Pickling, or as per client requirements
Standard JIS, AISI, ASME, ASTM, AMS, GB, DIN, EN, GOST
Manufacturing types Seamless, Welded, ERW, EFW
Manufacturing Shapes Round, Square, Rectangle, Box Section
Manufacturing Technology Hot / Cold Formed
Other Grades SS 446
Inspection, Test Reports EN 10204 3.1, Mill Test Certificates, PMI Test Reports, Chemical Reports, Mechanical Reports, NABL Approved Lab Reports, Visual Inspection Reports, Destructive and Non Destructive Test Reports, Third Party Inspection
Technique Cold Rolled Hot Rolled

SS 904L Pipe Schedule and Wall Thickness

Nominal O.D. Inches 10s 10 40s & Std 40 80s & E.H. 80 160
1/8 .405 .049 .049 .068 .068 .095 .095  
1/4 .540 .065 .065 .088 .088 .119 .119  
3/8 .675 .065 .065 .091 .091 .126 .126  
1/2 .840 .083 .083 .109 .109 .147 .147 .187
3/4 1.050 .083 .083 .113 .113 .154 .154 .218
1 1.315 .109 .109 .133 .133 .179 .179 .250
1 1/4 1.660 .109 .109 .140 .140 .191 .191 .250
1 1/2 1.900 .109 .109 .145 .145 .200 .200 .281
2 2.375 .109 .109 .154 .154 .218 .218 .343
2 1/2 2.875 .120 .120 .203 .203 .276 .276 .375
3 3.500 .120 .120 .216 .216 .300 .300 .437
3 1/2 4.000 .120 .120 .226 .226 .318 .318  
4 4.500 .120 .120 .237 .237 .337 .337 .531
4 1/2 5.000     .247   .355    
5 5.563 .134 .134 .258 .258 .375 .375 .625
6 6.625 .134 .134 .280 .280 .432 .432 .718
7 7.625     .301   .500    
8 8.625 .148 .148 .322 .322 .500 .500 .906
9 9.625     .342   .500    
10 10.750 .165 .165 .365 .365 .500 .593 1.125
11 11.750     .375   .500    
12 12.750 .180 .180 .375 .406 .500 .687 1.312
14 14.000 .188 .250 .375 .437 .500 .750 1.406
16 16.000 .188 .250 .375 .500 .500 .843 1.593
18 18.000 .188 .250 .375 .562 .500 .937 1.781

Equivalent Grade of 904L Stainless Steel Tube

Grade UNS No Old British Japanese JIS Euronorm
En BS Name No
904L N08904 X1NiCrMoCu25-20-5 904S13 SUS 890L – 1.4539

Stainless Steel 904L Pipes Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
904L min. – – – – – 19.0 4.00 23.00 0.10
max. 0.20 2.00 1.00 0.045 0.035 23.0 5.00 28.00 0.25

904L Stainless Steel Tubing Mechanical Properties

  Yield Strength
0.2% Proof
(MPa)		 Tensile strength
(MPa)		 Elongation
(% in 50mm)		 Hardness
(HRB)
MIN 220 490 35.00  
MAX       90

Stainless Steel 904L Pipe Physical Properties

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

Tolerance Chart of 904L Stainless Steel Tube

Stainless Steel 904L Pipe ODastm b677 tp 904l Pipe Tolerance
4 to 35 milimeter+/- 0.08 milimeter
35 to 38 milimeter+/- 0.15 milimeter
38 to 60 milimeter+/- 0.20 milimeter
60 and above+/- 0.25 milimeter

Manufacturing Standards of SS 904L Pipe

ASTMASMEDescription
ASTM A312 TP904LSA 312 TP904LStainless Steel 904L Seamless and straight-seam welded austenitic pipe
ASTM A358 TP904LSA 358 TP904LASTM A312 TP904L Electric fusion welded (EFW) austenitic pipe, up to 8 inch
ASTM A213 TP904LSA 213 TP904LSeamless and Welded Austenitic Stainless Steel Tubing
ASTM A249 TP904LSA 249 TP904LWelded Austenitic Steel Boiler, Superheater, Condenser and SS 904L Heat Exchanger, Tubes
ASTM A269 TP904LSA 269 TP904LSeamless and Welded Austenitic Stainless Steel 904L Tubing
ASTM A409 TP904LSA 409 TP904L904L Welded Large Diameter Austenitic Steel Pipe
ASTM A376 TP904LSA 376 TP904LHigh Temperature SS 904L Seamless Austenitic Steel Pipe
ASTM A813 TP904LSA 813 TP904LSingle-seam, single / double 904L welded austenitic pipe
ASTM A814 TP904LSA 814 TP904LCold-worked welded 904L austenitic pipe
ASTM A554 TP904LSA 554 TP904LStainless Steel 904L Welded Stainless Steel Mechanical Tubing and ASTM A312 TP904L Square Pipe
ASTM A511 TP904LSA 511 TP904LStainless Steel 904L Seamless Mechanical Tubing
ASTM A632 TP904LSA 632 TP904LSmall-Diameter Seamless and Welded Austenitic Stainless Steel 904L Tubing
ASTM A688 TP904LSA 688 TP904LAustenitic Stainless Steel 904L Feedwater Heater Tubes, Welded
ASTM A778 TP904LSA 778 TP904LWelded, Unannealed Austenitic Stainless Steel 904L Pipe/ Tube

Dimensions of 904L (ASTM A312 UNS N08904) Pipe

NPS Outside Diameter (OD) Wall Thickness (WT)
mm in mm in
3/4″ 27 1.050 2.870 0.113
1 1/4″ 42 1.660 3.556 0.140
1″ 33 1.315 3.378 0.133
1 1/2″ 48 1.900 3.683 0.145
1/2″ 21 0.840 2.769 0.109
2 1/2″ 73 2.875 5.516 0.203
2″ 60 2.375 3.912 0.154
3″ 89 3.500 5.486 0.216
6″ 168 6.625 4.775 0.188
4″ 114 4.500 6.020 0.237
8″ 219 8.625 4.775 0.188
12″ 324 12.750 4.775 0.188
10″ 273 10.750 4.775 0.188
14″ 356 14 4.775 0.188
18″ 457 18 5.563 0.219
16” 406 16 4.775 0.188
20″ 508 20 6.350 0.250
30″ 762 30 6.350 0.250
24″ 610 24 6.350 0.250
36″ 914 36 6.350 0.250
48″ 1219 48 9.525 0.375
42″ 1067 42 7.925 0.312

904L Stainless Steel Pipe Temperature

Temperature, °F Btu/(lb °F) Temperature, °C J/(kg °C)
1300 0.15 700 615
1200 0.15 600 605
1000 0.14 500 590
800 0.14 400 570
600 0.13 300 545
400 0.12 200 515
200 0.12 100 485
68 0.11 20 460

SS 904L Seamless Tube Weight Chart

NPS Wall Thickness Weight Weight
inch inch Lb/ft kg/Mtr
1/2 .109 .851 1.268
3/4 .113 1.131 1.684
1 .133 1.679 2.501
1 1/4 .140 2.273 3.385
1 1/2 .145 2.718 4.048
2 .154 3.653 5.441
2 1/2 .203 5.793 8.629
3 .216 7.576 11.284
4 .237 1 .790 16.073
6 .188 12.924 19.252
8 .188 16.940 25.233
10 .188 21.207 31.588
12 .188 25.222 37.570
14 .188 27.732 41.308
16 .188 21.748 47.290
18 .219 41.588 61.948
20 .250 52.733 78.547
24 .250 63.413 94.456
30 .250 79.433 118.318
36 .250 95.453 142.180
42 .312 138.911 206.914
48 .375 19 .738 284.112

Industries We Serve as 904L Stainless Steel Pipe Suppliers

    • Petrochemical Industry
    • Chemical Industry
    • Oil and Gas Industry
    • Pulp & Paper Indusry
    • Power Plant Industry
    • Food Processing Industry
    • Pharmaceuticals Industry
    • Energy Industry
    • Aerospace Industry
Application Industries

Frequently Asked Questions About SS 904L Pipe& Tube

Stainless Steel 904L Seamless Pipes are high-alloy austenitic pipes made with nickel, chromium, molybdenum, and copper, designed for superior resistance to corrosion, acids, and harsh environments. They are manufactured as per ASTM 904L standards like ASTM B673 and are widely supplied by leading 904L stainless steel pipe suppliers for chemical, marine, and industrial applications.

Yes, SS 904L Pipe is more expensive than standard stainless steels like 304 or 316 due to its higher alloying elements, which provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking.

No, 904L stainless steel pipe does not rust easily because of its high nickel, chromium, and molybdenum content. It offers excellent protection against chloride attack, making it ideal for marine and chemical process environments where regular stainless steels may corrode.

The 904L stainless steel pipe price depends on market rates, product form (seamless or welded), and order quantity. The 904L stainless steel tube is priced higher compared to standard stainless steels due to its enhanced alloy composition.

SS 904L pipes can be welded using common welding methods like TIG, MIG, and SMAW. It is recommended to use high-alloy filler metals for maximum corrosion resistance. Post-weld heat treatment and proper cleaning enhance the performance of welded joints.

Yes, 904L steel performs better than 316 stainless steel in highly corrosive environments. Its higher nickel and molybdenum content gives 904L stainless steel tubing superior resistance to acids, chlorides, and pitting corrosion, making it more reliable for harsh applications.

The main difference is in corrosion resistance and alloy composition. While 304 stainless steel is economical and widely used, SS 904L pipe contains higher nickel, chromium, and molybdenum, offering better resistance to strong acids and chloride-rich conditions.

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