Stainless Steel 304L Pipe of Specification

Refer to the following standard technical specifications for 304L stainless steel pipe, standard, type, size, range and other required information.

Parameter Details
Standard ASTM A312 / ASME SA312
Type Seamless, ERW, Welded, Fabricated
Size Range 6.00 mm OD to 914.4 mm OD (Up to 24” NB available Ex-stock)
Wall Thickness 0.3 mm to 50 mm (W.T. SCH 5S to SCH 160S: 0.5 mm to 12 mm)
Schedule SCH 5S, 10S, 40S, 80S , 160S
Form Round, Square, Rectangular, Coiled, “U" -Shape, Hydraulic
Length Single Random, Double Random, Required/Custom Length
End Type Plain End, Bevelled End, Threaded (with Plastic Cap protection)
Surface Finish 2B, No. 4, No. 1, No. 8 Mirror Finish, Customer-specific finishes

304L Stainless Steel Pipe Sizes and Dimensions

304L stainless steel pipe is available in nominal pipe sizes from 1/8" to 36" NPS (DN6 to DN900), in schedules 5S, 10S, 20, 30, 40/40S, 60, 80/80S, 100, 120, 140, 160, and XXH. Standard lengths are 20-foot random with double random and cut-to-length options on request.

The table below shows Sachiya Steel International's full size range.

Parameter Range
Nominal Pipe Size (NPS) 1/8" to 36" (DN6 to DN900)
Outside Diameter (OD) 0.405" to 36"
Schedules 5S, 10S, 20, 30, 40/40S, 60, 80/80S, 100, 120, 140, 160, XXH
Standard Lengths 20 ft single random, double random
Custom Lengths Available on request

Pipe Schedule and Weight Chart

This chart shows OD, wall thickness, and weight per foot for common NPS sizes at Schedule 10S, 40S, and 80S per ASME B36.19. These estimations use a stainless steel density of 0.29 lb/in³, although they are still only rough because of small variances in how things are made.

NPS OD (in.) Sch 10S Wall (in.) Sch 10S Wt (lb/ft) Sch 40S Wall (in.) Sch 40S Wt (lb/ft) Sch 80S Wall (in.) Sch 80S Wt (lb/ft)
1/2" 0.840 0.065 0.54 0.109 0.85 0.147 1.09
3/4" 1.050 0.065 0.69 0.113 1.13 0.154 1.47
1" 1.315 0.065 0.87 0.133 1.68 0.179 2.17
1-1/2" 1.900 0.065 1.28 0.145 2.72 0.200 3.63
2" 2.375 0.065 1.61 0.154 3.65 0.218 5.02
3" 3.500 0.083 3.03 0.216 7.58 0.300 10.25
4" 4.500 0.083 3.92 0.237 10.79 0.337 14.98
6" 6.625 0.109 7.60 0.280 18.97 0.432 28.57
8" 8.625 0.109 9.93 0.322 28.55 0.500 43.39
10" 10.750 0.134 15.19 0.365 40.48 0.500 54.74
12" 12.750 0.156 21.00 0.375 49.56 0.500 65.42

304L Stainless Steel Pipe Price

304L stainless steel pipe pricing typically ranges from Rs. 310 to 350 per kilogram (India, ex-works Mumbai) or approximately $30 to $65 per linear foot (USA), depending on size, schedule, and quantity ordered. These are indicative figures; actual pricing shifts with nickel and chromium market rates.

Several factors affect the final cost per unit. Seamless pipe is priced at a higher price compared to welded pipe, with a typical increase of 15 to 30% for the same dimension and schedule. The cost of heavy schedules and larger diameters is higher per foot, but it is lower per kilogram as a result of production efficiencies. Volume matters: orders over 500 kg get better per-kilogram pricing.

Sachiya Steel International competes on price without hidden fees. Every order includes soft copies of mill test, quality, and material traceability certificates. Contact us for current prices on your size and schedule.

Chemical Composition of ASTM A312 TP304L Pipe

The table below lists each element and its permitted range per ASTM A312/ASME SA312 for Grade TP304L (UNS S30403). ASTM A312 304L stainless steel contains 18–20% chromium and 8–12% nickel for corrosion protection and structural stability. Its low 0.030% carbon ceiling prevents welding sensitisation, making it the premier grade for durable, welded piping systems.

Carbon C
Max 0.030%
Manganese Mn
Max 2.00%
Phosphorus P
Max 0.045%
Sulphur S
Max 0.030%
Silicon Si
Max 1.00%
Chromium Cr
18.0 – 20.0%
Nickel Ni
8.0 – 12.0%
Nitrogen N
Max 0.10%

Mechanical Properties of 304L Stainless Steel Pipe

The following table shows the minimum mechanical requirements per ASME SA312 for Grade TP304L.

Yield strength is 35% of tensile strength, making it ductile for cold bending and shaping. The 35% elongation data shows that 304L pipe can withstand severe plastic distortion before failing. Engineers should note that mill test results commonly surpass these minimum promised values by 10–15%.

70 / 485
ksi / MPa
Tensile Strength
25 / 170
ksi / MPa
Yield Strength
35%
(min)
Elongation
Property Value Unit
Tensile Strength (min) 70 / 485 ksi / MPa
Yield Strength (min) 25 / 170 ksi / MPa
Elongation (min. 2 in.) 35 %
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Stainless Steel 304L Pipe Equivalent Grades

This table identifies global equivalents for 304L stainless steel pipe, helping you cross-reference international standards like ASTM, DIN, and JIS.

Standard / Region Designation
USA UNS S30403
Germany / EU (EN/DIN) 1.4307 / X2CrNi18-9
Japan (JIS) SUS 304L
China (GB) 022Cr19Ni10 (Old: 00Cr19Ni10)
UK (BS) 304S11
Russian (GOST) 03Ch18N11

Industrial Applications of 304L Stainless Steel Pipe

304L stainless pipes are indispensable in the fields of chemical processing, food, pharmaceuticals, and wastewater. These very demanding industrial situations are the best choice because they are very easy to weld and don't rust easily.

Chemical Processing

Chemical plants utilise 304L pipes for transfer lines handling organic acids and alkaline solutions. Low carbon resists sensitisation in the 450–850°C range.

Food & Beverage

Breweries and dairies use 304L for clean process piping. The material's durability to clean-in-place chemicals satisfies sanitary application criteria with proper surface finish and food-contact laws.

Oil & Gas

304L pipes are used in instrument tubing, water injection, and utility lines. These components ensure consistent performance in glycol lines and non-chloride gas sweetening units for various processing plants.

Cryogenic Service

Transferring LNG and liquid nitrogen is critical. 304L maintains strong ductility and structural integrity at extreme temperatures as low as -196°C without brittle transition.

304 vs 304L Stainless Steel Pipe: Key Differences

Use this table to determine which specification meets your project’s strength and corrosion requirements.

Due to its low carbon content, 304L avoids intergranular corrosion in welded joints. Specifying this grade ensures strong mechanical strength and carbide precipitation resistance. Low carbon, 0.030% vs. 0.08% for regular 304, is the "L" in 304L.

Feature Stainless Steel 304 Stainless Steel 304L
Carbon Content (Max) 0.08% 0.03%
Tensile Strength (Min) 75 ksi (515 MPa) 70 ksi (485 MPa)
Yield Strength (Min) 30 ksi (205 MPa) 25 ksi (170 MPa)
Welding Performance Risk of carbide precipitation Prevents intergranular corrosion
Post-Weld Treatment Often required Generally not required
Best Use Case High-strength structural parts Welded piping systems

Shipping & Packaging

Main export packaging setup Heavy-duty wooden boxes Packing
Export Packaging Standard

We strictly follow seaworthy export handling standards to protect 304L pipe from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

  • Heavy-duty wooden boxes with moisture barrier lining
  • HDPE stretch film wrapping on all bundles
  • Plastic end caps on threaded and plain-end pipes
  • Silica gel desiccants to minimize moisture exposure
  • ISPM-15 fumigated wooden packaging for export
shipping preparation Pipe Bundle Yard Staging
Shipping packaging Container End-Cap Protection
Shipping stock Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies stainless steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

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Frequently Asked Questions:

What is the Difference between 304 and 304L stainless steel pipe? +
304L has a lower maximum carbon content of 0.030% compared to 0.08% for standard 304. This avoids intergranular corrosion by reducing chromium carbides in the heat-affected zone during welding. Most pipe mills make dual-certified 304/304L that meets both specs.
What is the Price of stainless steel 304L pipe? +
Pricing ranges from approximately Rs. 310 to 350/kg in India and $30 to $65 per linear foot in the USA. Final cost depends on pipe size, schedule, seamless vs welded form, order quantity, and current raw material market conditions.
What Material is 304L pipe made of? +
304L pipe is an austenitic stainless steel with 18.0% to 20.0% chromium and 8.0% to 12.0% nickel. Containing at most 0.030% carbon, it falls under the 18-8 stainless steel family and uses the UNS S30403 designation.
What Sizes are available in 304L stainless steel pipe? +
Sachiya Steel International stocks 304L pipe from 1/8" to 36" NPS in schedules 5S through XXH. Standard lengths are 20-foot random, with cut-to-length and double random options available on request.
What ASTM specification covers 304L stainless steel pipe? +
The primary specification is ASTM A312 / ASME SA312, which covers seamless, welded, and heavily cold-worked austenitic stainless steel pipe. ASTM A358 applies to electric-fusion-welded pipe, and ASTM A778 covers welded unannealed products.
Is 304L pipe suitable for welding? +
Yes. The low carbon content, with a maximum of 0.030%, specifically reduces sensitisation during welding. 304L is suitable for welded pipes since it inhibits heat-induced corrosion and doesn't require special treatment.
Can 304L Stainless Steel Pipe be used in cryogenic applications? +
Yes. Austenitic 304L remains ductile at -196°C (-321°F). Because it does not undergo a ductile-to-brittle transition, LNG transfer, liquid nitrogen, and liquid oxygen piping systems use it.

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