904L Stainless Steel Pipe

Jan 09, 2026

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Factory Manufacturers 904L Stainless Steel Pipes and Tubes of Seamless / Welded / ERW / EFW Suppliers in China, Contact US Buy ASTM A312 UNS N08904 Pipe

 

904L Stainless Steel Pipe

 

904L stainless steel pipe is suitable for the chemical industry. The addition of copper to N08904 material improves resistance to strong reducing acids such as sulfuric, phosphoric, and acetic acids, surpassing traditional chromium-nickel TP316/L and TP317/L stainless steels. Its lower carbon content makes it easier to weld, and its high-temperature resistance reaches approximately 450°C.

 

Our supplier offers both welded and seamless AISI 904L pipe. We manufacture in strict accordance with ASTM A312 standards, and every 904L pipe is supplied in the heat-treated condition. Contact us for more information and pricing.

 

What Is The Specification Of 904l Pipe?

 

International Specification

ASTM A213, ASTM B677, ASTM A269, ASTM A312, NACE, MR0175, EN 10216-5

Standard Specification

ASME, ASTM, AISI, AMS, JIS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB

904L Seamless Pipe Size

OD: 4 to 219mm

Wall Thickness: 0.5 to 20mm

904L Welded Pipe Size

OD: 5.0 - 1219.2 mm

SS 904L EFW Pipe Size

OD: 5.0 - 1219.2 mm

WT

SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Types

Seamless / ERW / EFW/ Welded / Fabricated / CDW/ LSAW/ Seam-Welded / Redrawn

904L SS Pipe Length

Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded

Delivery Condition

Annealed and Pickled, Hot Finished, Polished, Bright Annealed, Cold Drawn

 

Alloy 904l (Uns n08904) Composition %

 

C
Carbon

Mn
Manganese

P
Phosphorus

S
Sulfur

Si
Silicon

Cr

Chromium

Ni

Nickel

Mo
Molybdenum

N
Nitrogen

Cu
Copper

0.020 max

2.00 max

0.040 max

0.030 max

1.00 max

19.0–23.0

23.0–28.0

4.0–5.0

0.10 max

1.00–2.00

 

Stainless Steel 904l Pipe Mechanical Properties

 

Yield Strength:

31 ksi min

Tensile Strength:

71 ksi min

Elongation (min 2"):

35%

Hardness (Rockwell B Scale):

90 HRB max

 

904l Ss Pipe Schedule And Wall Thickness

 

Nominal

O.D. Inches

10s

10

40s & Std

40

80s & E.H.

80

160

1/8

0.405

0.049

0.049

0.068

0.068

0.095

0.095

 

1/4

0.54

0.065

0.065

0.088

0.088

0.119

0.119

 

3/8

0.675

0.065

0.065

0.091

0.091

0.126

0.126

 

1/2

0.84

0.083

0.083

0.109

0.109

0.147

0.147

0.187

3/4

1.05

0.083

0.083

0.113

0.113

0.154

0.154

0.218

1

1.315

0.109

0.109

0.133

0.133

0.179

0.179

0.25

1 1/4

1.66

0.109

0.109

0.14

0.14

0.191

0.191

0.25

1 1/2

1.9

0.109

0.109

0.145

0.145

0.2

0.2

0.281

2

2.375

0.109

0.109

0.154

0.154

0.218

0.218

0.343

2 1/2

2.875

0.12

0.12

0.203

0.203

0.276

0.276

0.375

3

3.5

0.12

0.12

0.216

0.216

0.3

0.3

0.437

3 1/2

4

0.12

0.12

0.226

0.226

0.318

0.318

 

4

4.5

0.12

0.12

0.237

0.237

0.337

0.337

0.531

4 1/2

5

   

0.247

 

0.355

   

5

5.563

0.134

0.134

0.258

0.258

0.375

0.375

0.625

6

6.625

0.134

0.134

0.28

0.28

0.432

0.432

0.718

7

7.625

   

0.301

 

0.5

   

8

8.625

0.148

0.148

0.322

0.322

0.5

0.5

0.906

9

9.625

   

0.342

 

0.5

   

10

10.75

0.165

0.165

0.365

0.365

0.5

0.593

1.125

11

11.75

   

0.375

 

0.5

   

12

12.75

0.18

0.18

0.375

0.406

0.5

0.687

1.312

14

14

0.188

0.25

0.375

0.437

0.5

0.75

1.406

16

16

0.188

0.25

0.375

0.5

0.5

0.843

1.593

18

18

0.188

0.25

0.375

0.562

0.5

0.937

1.781

 

1.4539 Aisi 904l Heat Treatment:

 

Grade 904L stainless steel pipes can be heat-treated at 1090 to 1175°C, following by rapid cooling.

 

904l Tubing Heat Resistance Temperature Range

 

904l Tubing Heat Resistance Temperature Range

 

Maintains strength and toughness down to -196°C

 

Maximum continuous operating temperature in oxidizing environments up to approximately 450°C

 

Can withstand intermittent high temperatures up to 600°C

 

904l Stainless Steel Tube Weldability

 

904L is an ultra-low carbon steel (C ≤ 0.02%), offering excellent weldability and resisting thermal cracking. Preheating and post-weld heat treatment are not required.

 

Welding Materials

 

SMAW: E385 (AWS A5.4 / ENiCrMo-3 or ER385)

 

GTAW/MIG: ER385 (AWS A5.9)

 

Applications of 904l UNS N08904 PIPE

 

Applications of 904l UNS N08904 PIPE

 

Seawater cooling equipment

 

Chemical industry

 

Refinery components

 

Gas scrubbers

 

Pulp and paper processing industry

 

Acetic, phosphoric, and sulfuric acid processing plants

 

Heat exchangers, condenser tubes

 

Why Choose Us?

 

1. One-stop service suppliers

 

2. ISO9001, CE certification, SGS, BV third-party testing

 

3. EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)

 

4. Customized service

 

5. Fast delivery 7-30 days

 

6. Provide samples

 

7. Non Destructive Test Reports

 

8. Welcome to visit our factory

 

SS 904l Pipe Supplier

 

Jinie is a well-known stockist and exporter. We are a 904l material supplier with 20+ export experience. We not only provide 904l pipes, plates, round bars, but also pipe fittings, flanges, etc. Contact us for more information and prices for free.

 

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