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Stainless Steel 304 Pipe - SS 304 Pipe

Stainless Steel 304 pipes should be at the top of your list. Whether you’re managing an industrial project, a construction site, or a food-grade setup, SS 304 pipes offer unmatched performance in a wide range of environments.
 
Used across industries such as chemical processing, pharmaceuticals, dairy, food & beverage, water treatment, oil & gas, and architecture, these pipes are known for their durability and hygiene standards.
 
It’s a grade of stainless steel that contains 18% chromium and 8% nickel, offering the perfect balance of strength and corrosion resistance. This composition not only helps the steel fight off rust and environmental damage, but also gives it the flexibility to be shaped, bent, and welded into almost any form — from thin-wall domestic pipelines to heavy-duty industrial lines.
 
Whether you’re building a new facility, replacing an old plumbing network, or installing high-grade process equipment, choosing the right pipe material is not just a technical decision — it’s a long-term investment. And SS 304 pipes give you exactly that: durability, performance, and peace of mind.
 
These pipes also come in multiple finishes (like polished or mirror), types (seamless, welded, or ERW), and thicknesses, giving engineers, builders, and buyers complete flexibility to choose what best fits their purpose.

 

Why are Stainless Steel 304 Pipes popular ?

  • Corrosion Resistance: They perform well in humid, wet, and mildly acidic environments — no rust, no leaks.
  • Hygienic Surface: That smooth, polished surface doesn’t hold onto dirt or bacteria — ideal for food, beverage, and pharma applications.
  • Strong Yet Workable: High tensile strength means it won’t crack under pressure, yet it’s still easy to shape and weld.
  • Long Life, Low Maintenance: Once installed, it needs minimal care and lasts for decades.
  • Attractive Finish: Available in mirror, polished, or matte finish — perfect for decorative and exposed installations too.

 

Types of SS 304 Pipes

SS 304 pipes are available in various types based on manufacturing and application needs:
  1. Seamless Pipes
  • Made from solid stainless steel billets.
  • No welds — excellent for high-pressure and high-temperature use.
  • Ideal for: Chemical industries, pressure vessels, boilers.
  1. Welded Pipes
  • Made by rolling stainless steel plates and welding the seam.
  • Cost-effective alternative to seamless.
  • Used in: Structural applications, low-pressure transport, architecture.
  1. ERW (Electric Resistance Welded) Pipes
  • Welded using electric resistance — ideal for high-precision and clean welding.
  • Common in water pipelines, agriculture, and scaffolding.

 

Stainless Steel 304 Pipes
Supplies from Different Countries

Supplies from Different Countries

Flag Country Code
🇮🇳 India IN
🇺🇸 United States US
🇬🇧 United Kingdom GB
🇨🇳 China CN
🇯🇵 Japan JP
🇩🇪 Germany DE
🇮🇹 Italy IT
🇹🇷 Turkey TR
🇦🇪 United Arab Emirates AE
🇸🇦 Saudi Arabia SA
🇶🇦 Qatar QA
🇴🇲 Oman OM
🇰🇼 Kuwait KW
🇦🇺 Australia AU
🇨🇦 Canada CA
🇳🇱 Netherlands NL
🇮🇩 Indonesia ID
🇪🇬 Egypt EG
 
 

 

 

Surface Finishes Available

Finish Type
Description
Use Case
Mill Finish
As-rolled, dull finish
Structural & industrial applications
Polished Finish
Smooth, semi-glossy
Food & pharma processing
Mirror Finish
Highly reflective, chrome-like appearance
Decorative, hygienic, premium setups
Pickled & Passivated
Acid-cleaned to remove scale and rust
Chemical plants, pipelines
 

ASTM A312 TP304 Seamless Pipe Material Specification

Specifications
ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358
Dimensions
ASTM, ASME and API
SS 304 Pipes
1/2″ NB – 16″ NB
ERW 304 Pipes
1/2″ NB – 24″ NB
EFW 304 Pipes
6″ NB – 100″ NB
Size
1/8″NB TO 30″NB IN
Specialized in
Large Diameter Size
Schedule
SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type
Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form
Round, Square, Rectangular, Hydraulic Etc
Length
Single Random, Double Random & Cut Length.
End
Plain End, Beveled End, Treaded
 

ASME SA312 SS 304 Chemical Structure

Element
SS 304
Ni
8.0 – 11.0
C
0.08
Mn
2.0 max
P
0.045 max
S
0.03 max
Si
1.0 max
Cr
18.0 – 20.0
 

SS 304 Stainless Steel Pipe Properties Table

Element
SS 304
Density
8.0 g/cm3
Melting Point
1400 °C (2550 °F)
Tensile Strength
Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset)
Psi – 30000 , MPa – 205
Elongation
35 %
Elongation
35 %
 

SS 304 Price List in India

Price of 304 Stainless Steel Pipes manufacturer in India
304 Stainless Steel Pipes Price in India (INR)
Stainless Steel Seamless Pipes (Cold Finished) Grade – 304
450 INR
Stainless Steel Welded Pipes Grade 304
250 INR
Stainless Steel Pipes (HOT Finished) Grade – 304
400  INR
 

Tolerance Chart of 304 Stainless Steel 304 Tube

Stainless Steel 304 Pipe OD
ASTM A312 TP304 Pipe Tolerance
4 to 35mm
+/- 0.08mm
35 to 38mm
+/- 0.15mm
38 to 60mm
+/- 0.20mm
60 and above
+/- 0.25mm
 

304 stainless steel Exhaust Pipe Size Chart In Mm

WT= wall thickness, OD= Outside Diameter, ID= Inside Diameter
ASTM A312 SS 304 Pipe OD
mm
Pipe WT
mm
in.
Sch
Kg/m
13.72
1.65
1/4
10S
0.50
13.72
2.24
1/4
40S
0.64
13.72
3.02
1/4
80S
0.81
17.15
1.65
3/8
10S
0.64
17.15
2.31
3/8
40S
0.86
17.15
3.20
3/8
80S
1.12
21.34
2.11
1/2
10S
1.02
21.34
2.77
1/2
40S
1.29
21.34
3.73
1/2
80S
1.65
26.67
2.11
3/4
10S
1.30
26.67
2.87
3/4
40S
1.71
26.67
3.91
3/4
80S
2.23
33.40
2.77
1
10S
2.13
33.40
3.38
1
40S
2.54
33.40
4.55
1
80S
3.29
33.40
6.352)
1
160
4.30
42.16
2.77
1¼
10S
2.73
42.16
3.56
1¼
40S
3.44
42.16
4.85
1¼
80S
4.53
42.16
6.352)
1¼
160
5.69
48.26
2.77
1½
10S
3.16
48.26
3.68
1½
40S
4.11
48.26
5.08
1½
80S
5.49
60.33
2.77
2
10S
3.99
60.33
3.91
2
40S
5.52
60.33
5.54
2
80S
7.60
60.33
8.742)
2
160
11.29
73.03
3.05
2½
10S
5.35
73.03
5.16
2½
40S
8.77
73.03
7.01
2½
80S
11.59
88.90
3.05
3
10S
6.56
88.90
5.49
3
40S
11.47
88.90
7.62
3
80S
15.51
88.90
11.132)
3
160
21.67
101.60
3.05
3½
10S
7.53
101.60
5.74
3½
40S
13.78
101.60
8.08
3½
80S
18.92
114.30
3.05
4
10S
8.50
114.30
6.02
4
40S
16.32
114.30
8.56
4
80S
22.67
114.30
13.492)
4
160
34.05
141.30
6.55
5
40S
22.10
141.30
9.53
5
80S
31.44
141.30
15.882)
5
160
49.87
168.28
3.4
6
10S
14.04
168.28
7.11
6
40S
28.69
168.28
10.97
6
80S
43.21
168.28
14.27
6
120
54.75
168.28
18.262)
6
160
68.59
219.08
8.18
8
40S
43.20
219.08
12.7
8
80S
65.63
219.08
18.23
8
120
91.30
219.08
23.012)
8
160
112.97

 

Applicable Standards & Certifications   

SS 304 Pipes are manufactured to meet global and national quality standards. Look for products certified under:
  • ASTM A312 / A213 / A269 – For seamless and welded stainless pipes.
  • ISI Mark / BIS Certification – Indian standards.
  • EN 10216 / EN 10217 – European piping standards.
  • ISO 9001 – General quality management standard.
  • PED Certification – For pressure equipment (EU).

 

Where Are SS 304 Pipes Used?

Industry
Application Examples
Food & Beverage
Milk lines, brewery piping, water pipelines
Pharmaceuticals
Cleanroom pipelines, sterile water systems
Chemical Processing
Acid lines, solvent transfer lines
Construction & Interiors
Handrails, architectural features, plumbing lines
Oil & Gas
Pipelines, offshore rigs, marine pipelines
Water Treatment Plants
RO systems, distribution pipelines, sewage treatment lines
 
Factors That Influence Price
  1. Raw Material Cost (Nickel, Chromium)
  2. Size & Thickness
  3. Finish & Surface Treatment
  4. Certification & Testing Costs
  5. Supplier Reputation & Logistic Overheads

 

Smart Buying Checklist

  • Before you place your order, verify the following:
  •  Grade Marking: Should be marked clearly on the pipe.
  •  MTC (Material Test Certificate): Confirms authenticity and specs.
  •  Surface Finish: Choose based on your industry application.
  •  Compare at Least 3 Suppliers: Don’t rely on a single quote.
  •  Check Inclusions: Confirm if GST & freight are included.
  •  Inspection: Ask for third-party inspection if it’s a large order.

 

Frequently Asked Questions

🔹 Is SS 304 suitable for drinking water applications?
Yes, SS 304 is widely used for potable water systems due to its non-toxicity and resistance to corrosion.
🔹 Can SS 304 rust?
While highly resistant to rust, it can corrode if exposed to highly salty or acidic conditions for long periods.
🔹 What’s the difference between 304 and 316 stainless steel?
SS 316 has added molybdenum, offering better corrosion resistance, especially in marine environments.
🔹 Is SS 304 pipe magnetic?
SS 304 is generally non-magnetic in its annealed state but may show slight magnetism after cold working.
🔹 Can SS 304 be used outdoors?
Yes. It performs well in outdoor conditions but may require additional protection in coastal or chemical-heavy environments.
 

 

Final Words

SS 304 pipes offer a perfect balance between cost, performance, and availability. With their versatility and durability, they remain a top choice across industries in India and worldwide.
Whether you’re ordering 10 meters for your home or 10 tons for your plant, understanding the material, pricing, and specifications helps you make the right investment.
 

 

Ready to Ship, Wherever You Need Reliable Supplies for your next big project? 

Whether you’re based in India or shipping internationally, we’re here to make sourcing simple. We supply across the USA, Canada, Australia ,Germany, Brazil , and the United Kingdom. Fast quotes, custom sizes, and bulk orders available.
 
Let us know what you need—we’ll take care of the rest