Stainless Steel 304 Welded Pipe Specifications

The Specifications for TP304 welded pipe, including standard, thickness and length, are listed in the table below:

Parameter Details
Standard ASTM A312 / ASME SA-312, ASTM A358 / ASME SA-358
Nominal Pipe Size (NPS) 1/8” to 36” NB
Outside Diameter (OD) 6.35 mm to 914.4 mm
Wall Thickness 0.8 mm to 12.7 mm+ (varies by schedule)
Schedules 5S, 10S, 40S, 80S, 160, XXH
Standard Length 6 metres (20 feet); custom lengths available
End Type Plain End, Bevelled End, Threaded (on request)
Surface Finish Mill Finish (No. 1), 2B, No. 4 Brushed, BA
Manufacturing Method ERW (up to 24” NB), EFW (above 24” NB)

Stainless Steel 304 Welded Pipe Schedule Chart

Schedule numbers define wall thickness for each nominal pipe size per ASME B36.19M.

NPS OD (inches) Sch 5S Wall (in) Sch 10S Wall (in) Sch 40S Wall (in)
1/2” 0.840 0.065 0.083 0.109
3/4” 1.050 0.065 0.083 0.113
1” 1.315 0.065 0.109 0.133
1-1/2” 1.900 0.065 0.109 0.145
2” 2.375 0.065 0.109 0.154
3” 3.500 0.083 0.120 0.216
4” 4.500 0.083 0.120 0.237

Stainless Steel 304 Welded Pipe Weight Chart

Pipe weight per unit length supports logistics planning and structural load calculations. Values below apply to Schedule 40 SS 304 welded pipe.

NPS OD (inches) Wall (inches) Weight (lb/ft) Weight (kg/m)
1/4” 0.540 0.088 0.42 0.63
3/8” 0.675 0.091 0.57 0.85
1/2” 0.840 0.109 0.86 1.28
3/4” 1.050 0.113 1.14 1.70
1” 1.315 0.133 1.68 2.50
1-1/4” 1.660 0.140 2.27 3.38
1-1/2” 1.900 0.145 2.72 4.05
2” 2.375 0.154 3.65 5.43

Stainless Steel 304 Welded Pipe Price

SS 304 welded pipe usually costs ₹200–₹400 per kg in India and $3–$8 per kg in international markets. The exact price depends on diameter, wall thickness (schedule), order quantity, surface finish, and current nickel/chromium prices. Contact us for an exact quote.

Chemical Composition of Stainless Steel 304 Welded Pipe

The chemical composition of Stainless Steel 304 Welded Pipe, along with its proportion, is listed in the table given below:

Carbon C
Max 0.08%
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 – 11.0%
Nitrogen N
Max 0.10%

Mechanical Properties of SS 304 Welded Pipe

The mechanical properties of SS 304 Welded Pipe, including yield strength and elongation, are listed in the table below:

75 / 515
MPa (min)
Tensile Strength
30 / 205
MPa (min)
Yield Strength
35%
(min)
Elongation
Property Value Unit
Tensile Strength (min) 75 / 515 ksi / MPa
Yield Strength (min) 30 / 205 ksi / MPa
Elongation (min) 35 %
Request a Quote for ASTM A312 TP304 Welded Pipe Request a Quote

Equivalent Grades of Stainless Steel 304 Welded Pipe

International designations equivalent to stainless steel 304 welded pipe are listed in the table mentioned below:

Standard / Country Designation
UNS S30400
Europe (EN 10088) 1.4301 / X5CrNi18-10
Japan (JIS G 3459) SUS304 / SUS304TP
China (GB/T 12771) 06Cr19Ni10 / 0Cr18Ni9
Russia (GOST 9940/9941) 08Kh18N10
South Korea (KS D 3576) STS304
France (AFNOR) Z7CN18-09

Stainless Steel 304 Welded Pipe Applications

SS 304 welded pipe finds use across 3 major sectors. These high-performing industries are listed below:

Food and Beverage Industry

Sanitary piping in breweries, bottling lines, and food processing plants.

Chemical and Pharmaceutical Processing

Piping for dilute organic acids, alkaline solutions, and various process chemicals at ambient to moderately elevated temperatures; corrosion-resistant pharmaceutical piping where 316L is not required.

Architectural and Structural Applications

Handrails, balustrades, canopy supports, and exposed structural framework.

Shipping & Packaging

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

We strictly follow seaworthy export handling standards to protect 304 welded 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 Price of 304 Stainless Steel Welded Pipe per Kg? +
In India, SS 304 welded pipe is usually priced at about ₹200–₹400 per kg, while on international markets it typically sells for $3–$8 per kg. The exact price depends on factors such as pipe size, schedule (wall thickness), order quantity, surface finish, and current stainless steel raw material costs.
Can Stainless Steel 304 Welded Pipe Be Further Welded on Site? +
Yes, Type 304 is one of the most weldable austenitic grades. TIG, MIG, and SMAW processes work with or without filler metal. For best results, use ER308 or ER308L filler wire.
What Sizes are Available in SS 304 Welded Pipe? +
SS 304 welded pipe is supplied in sizes from 1/8" NB to 36" NB (6.35 mm to 914.4 mm outside diameter) and is available in wall thickness schedules 5S, 10S, 40S, 80S, and XXH. Standard length is 6 metres (20 feet), but custom lengths are also available.
What is the Difference Between 304 and 316 Stainless Steel Welded Pipe? +
316 stainless steel contains 2–3% molybdenum for superior chloride and marine corrosion resistance. 304 is more cost-effective for freshwater, food processing, and general chemical service, where chloride exposure isn't a factor.
What is Stainless Steel 304 Welded Pipe Used For? +
SS 304 welded pipe is used in food processing, chemical plants, pharmaceutical piping, dairy equipment, architectural structures, water treatment, and mechanical piping.
What ASTM Standard covers 304 Stainless Steel Welded Pipe? +
ASTM A312 / ASME SA-312 covers seamless, welded, and heavily cold-worked austenitic stainless steel pipe, including TP304. ASTM A358 / ASME SA-358 covers electric-fusion-welded pipe for high-pressure service.
What is the Weight of SS 304 Welded Pipe per Metre? +
Weight varies by size and schedule. A 1" NB Schedule 40 pipe (1.315" outside diameter and 0.133" wall thickness) weighs about 2.50 kg per meter (1.68 pounds per foot). Refer to the weight chart above for all sizes.
What is the Difference Between ERW and EFW Welded Pipe in 304 Stainless Steel? +
ERW (Electric Resistance Welded) pipe is produced by applying high‑frequency electric current to fuse the pipe edges without using filler metal. It is used for pipe sizes up to 24” NB and is covered by ASTM A312. EFW (Electric Fusion Welded) pipe is made by arc welding, where filler metal is added to form the joint. It is typically used for pipe diameters above 24” NB under ASTM A358.

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