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ASTM A312 904L Stainless Steel Seamless Pipe High Corrosion Resistance Custom Sizes Available
ASTM A312 904L Stainless Steel Seamless Pipe High Corrosion Resistance Custom Sizes Available
Specifications
Standard :
ASTM A312/ASTM A269
Wall Thickness :
Silver
Delivery Time :
8 ~ 14 days
Length :
round
Place of Origin :
China
MOQ :
500kgs
Payment Terms :
T/T
Model Number :
310S 904L
Custom Size :
Available
OD :
Custom
Product name :
310S 904L Stainless Steel Pipe
Certification :
ISO,SGS,CE,BIS
Supply Ability :
Adequate production
Brand Name :
JUDE STEEL
Type :
Seamless
Price :
negotiable
Packaging Details :
Standard Package
Grade :
310S 904L
Description
ASTM A312 904L Stainless Steel Seamless Pipe High Corrosion Resistance Custom Sizes Available

We are a professional manufacturer specializing in ASTM standard stainless steel pipe. Our product range covers 304, 316L, 316, 310S, 321, and 904L stainless steel pipes/tubes, all manufactured in strict accordance with ASTM standards. The following will focus on 310S stainless steel pipe and 904L stainless steel tube, mainly from the aspects of product specifications, product description, chemical composition, physical properties, mechanical properties, application fields, etc.

Specifications

310S Stainless Steel Pipe Specifications

Product: ASTM A312 310S Stainless Steel Seamless Pipe
Grade: 310S
UNS: S31008
EN: 1.4845 / X8CrNi25-21

Specification 310S Stainless Steel Pipe
Standard ASTM A312 / ASME SA312
Grade 310S
UNS No. S31008
EN Grade 1.4845
Product Type Seamless
Outside Diameter 6–630 mm
Wall Thickness 0.5–50 mm
Length 5,000–12,000 mm
Custom Length Available
Schedule SCH 5S, 10S, 40S, 80S, 160S
Manufacturing Process Hot Rolled / Cold Drawn
Heat Treatment Solution Annealed
Surface Pickled / Annealed & Pickled / Bright Annealed
End Type Plain End / Beveled End / Threaded End
Dimensional Standard ASME B36.19 / ASTM A312
Testing Hydrostatic / Nondestructive Electric Test
Inspection Chemical / Mechanical / Dimensional / Visual
Certificate EN 10204 3.1 MTC
Application Furnaces, Heat Treatment, Petrochemical, High-Temperature Piping
904L Stainless Steel Tube Specifications

Product: 904L Stainless Steel Tube
Grade: 904L
UNS: N08904
EN: 1.4539 / X1NiCrMoCu25-20-5

Specification 904L Stainless Steel Tube
Standard ASTM A269 / ASTM A213
Grade 904L
UNS No. N08904
EN Grade 1.4539
Product Type Seamless
Outside Diameter (OD) 3–610 mm
Wall Thickness 0.3–30 mm
Length 1,000–12,000 mm
Custom Length Available
Manufacturing Process Cold Drawn / Cold Rolled / Seamless
Heat Treatment Solution Annealed
Surface Pickled / Bright Annealed / Polished
OD Tolerance According to applicable standard
Wall Thickness Tolerance According to applicable standard
End Type Plain End / Cut End / Beveled End
Testing Hydrostatic / Eddy Current / Nondestructive Testing
Inspection Chemical / Mechanical / Dimensional / Visual
PMI Available
Certificate EN 10204 3.1 MTC
Custom Size Available
Application Chemical Processing, Petrochemical, Marine, Pharmaceutical, Pulp & Paper
Product Images ASTM A312 904L Stainless Steel Seamless Pipe High Corrosion Resistance Custom Sizes Available
Common Sizes Common 310S Pipe Sizes
NPS Outside Diameter
1/2" 21.3 mm
1" 33.4 mm
1-1/2" 48.3 mm
2" 60.3 mm
3" 88.9 mm
4" 114.3 mm
6" 168.3 mm
8" 219.1 mm
10" 273.0 mm
12" 323.9 mm
16" 406.4 mm
20" 508.0 mm
24" 610.0 mm
Common 904L Pipe Sizes
OD Wall Thickness Length
10 mm 1 mm 6 m
12 mm 1.5 mm 6 m
16 mm 2 mm 6 m
20 mm 2 mm 6 m
25 mm 2.5 mm 6 m
32 mm 3 mm 6 m
38 mm 3 mm 6 m
50 mm 3 mm 6 m
60 mm 4 mm 6 m
76 mm 4 mm 6 m
89 mm 5 mm 6 m
108 mm 5 mm 6 m
Specification Positioning Difference
Item 310S Stainless Steel Pipe 904L Stainless Steel Tube
Product Focus High-temperature industrial piping Corrosion-resistant precision tubing
Typical Standard ASTM A312 ASTM A269 / ASTM A213
Size Format NPS / OD × Wall Thickness / Schedule OD × Wall Thickness × Length
Size Range Medium to large diameters Small to medium diameters
Wall Thickness Mainly Schedule-based Mainly specified in mm
Key Features High-temperature & oxidation resistance Excellent corrosion resistance
Typical Applications Furnaces, heat treatment, petrochemical Chemical, marine, pharmaceutical

In short:
310S Pipe → High-temperature industrial piping
904L Tube → High-corrosion-resistant precision tubing

Chemical Composition Comparison
Element 310S Stainless Steel (UNS S31008) 904L Stainless Steel (UNS N08904)
C ≤ 0.08% ≤ 0.020%
Si ≤ 1.00% ≤ 1.00%
Mn ≤ 2.00% ≤ 2.00%
P ≤ 0.045% ≤ 0.045%
S ≤ 0.030% ≤ 0.035%
Cr 24.0–26.0% 19.0–23.0%
Ni 19.0–22.0% 23.0–28.0%
Mo — 4.0–5.0%
Cu — 1.0–2.0%
Fe Balance Balance
Key Difference
  • 310S: Higher Cr content and high Ni → primarily designed for high-temperature oxidation resistance and thermal stability.
  • 904L: Higher Ni + Mo + Cu content and very low carbon → designed for excellent corrosion resistance, especially in aggressive chemical environments.
Physical Properties Comparison
Property 310S Stainless Steel 904L Stainless Steel
Density ~7.9 g/cm³ ~8.0 g/cm³
Melting Range ~1,400–1,450°C ~1,300–1,400°C
Thermal Conductivity ~14.2 W/(m·K) ~12.0–13.0 W/(m·K)
Specific Heat ~500 J/(kg·K) ~450–500 J/(kg·K)
Electrical Resistivity ~0.78 μΩ·m ~0.95 μΩ·m
Elastic Modulus ~200 GPa ~195 GPa
Poisson's Ratio ~0.30 ~0.30
Thermal Expansion ~15.0 × 10⁻⁶/K ~15.5 × 10⁻⁶/K
Magnetic Property Generally non-magnetic Generally non-magnetic
Key Difference
  • 310S: Better suited for high-temperature and furnace applications, with good thermal stability and oxidation resistance.
  • 904L: Better suited for highly corrosive environments, with excellent corrosion resistance due to its Mo, Cu, and high Ni content.
Mechanical Properties Comparison
Property 310S Stainless Steel 904L Stainless Steel
Tensile Strength, min. 515 MPa 490 MPa
Yield Strength, min. (0.2%) 205 MPa 220 MPa
Elongation, min. 35% 35%
Hardness, Brinell, max. ≤217 HB ≤220 HB
Hardness, Rockwell B, max. ≤95 HRB ≤96 HRB
Condition Annealed Solution Annealed
Key Difference
  • 310S: Slightly higher minimum tensile strength and excellent stability at elevated temperatures, making it suitable for furnaces and high-temperature equipment.
  • 904L: Slightly higher yield strength and excellent ductility, with its main advantage being superior corrosion resistance rather than high-temperature strength.
Applications Comparison 310S Stainless Steel Pipe

Mainly used where high-temperature and oxidation resistance are required:

  • Industrial furnaces
  • Heat-treatment equipment
  • Furnace piping and components
  • High-temperature process lines
  • Petrochemical equipment
  • Thermal processing systems
  • High-temperature gas piping
904L Stainless Steel Tube

Mainly used where excellent corrosion resistance is required:

  • Chemical processing equipment
  • Sulfuric acid equipment
  • Petrochemical systems
  • Marine and seawater equipment
  • Pharmaceutical equipment
  • Pulp and paper processing
  • Heat exchangers
  • Corrosive process piping
  • seamless stainless steel pipe manufacturer
FAQ
1. What is the main difference between 310S and 904L stainless steel?

310S is mainly designed for high-temperature and oxidation-resistant applications, while 904L is designed for highly corrosive environments.

2. Which is better for high-temperature applications?

310S is generally the better choice for furnace and high-temperature applications because of its excellent oxidation resistance and thermal stability.

3. Which has better corrosion resistance?

904L generally offers superior corrosion resistance, particularly in aggressive chemical environments such as sulfuric acid and other acidic media.

4. Can 310S stainless steel pipe be used in furnaces?

Yes. 310S seamless pipe is widely used in industrial furnaces, heat-treatment equipment, furnace piping, and high-temperature process systems.

5. Where is 904L stainless steel tube commonly used?

904L tube is commonly used in chemical processing, petrochemical, marine, pharmaceutical, pulp and paper, and heat exchanger applications.

6. What are the UNS numbers for 310S and 904L?
  • 310S: UNS S31008
  • 904L: UNS N08904
7. Which material should I choose for corrosive applications?

For highly corrosive chemical environments, 904L is generally the preferred option because of its high nickel, molybdenum, and copper content.

8. Which material is better for furnace applications?

310S is generally more suitable for furnace applications where high-temperature oxidation resistance and thermal stability are the primary requirements.

9. Are both materials available in custom sizes?

Yes. 310S stainless steel pipe and 904L stainless steel tube can be supplied in customized outside diameters, wall thicknesses, and lengths according to project requirements.

10. Can you provide material test certificates?

Yes. EN 10204 3.1 MTC can be provided upon request, including chemical composition, mechanical properties, heat number, and inspection results.

11. Which one should I choose: 310S or 904L?

Choose 310S when the primary requirement is high-temperature performance. Choose 904L when the primary requirement is maximum corrosion resistance.

Product Highlights: 310S Stainless Steel Pipe vs 904L Stainless Steel Tube
310S Stainless Steel Pipe 904L Stainless Steel Tube
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ASTM A312 904L Stainless Steel Seamless Pipe High Corrosion Resistance Custom Sizes Available

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Product Detail
Standard :
ASTM A312/ASTM A269
Wall Thickness :
Silver
Delivery Time :
8 ~ 14 days
Length :
round
Place of Origin :
China
MOQ :
500kgs
Contact Supplier
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ASTM A312 904L Stainless Steel Seamless Pipe High Corrosion Resistance Custom Sizes Available

JUDE STEEL MANUFACTURING CO., LTD

Verified Supplier
1 Years
Shaanxi
Since 2008
Business Type :
Manufacturer
Main Products :
Stainless Steel Pipe, Stainless Steel Rod, Hot Rolled Stainless Steel Sheet
Total Annual :
40,000 tons-50,000 tons
Employee Number :
80~99
Certification Level :
Verified Supplier
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