Stainless Steel 304 Pipes
Stainless Steel 304 pipes, also known as SS 304 pipes or 18/8 stainless pipes, are chromium-nickel alloy pipes that are widely used in various industries. It contains 18% chromium and 8% nickel, making it highly resistant to oxidation and corrosion. The pipe can endure temperatures as high as 870°C and is appropriate for structural and fluid-carrying purposes. From chemical plants to kitchens, SS 304 pipe is still the preferred material for durability, hygiene, and cost-effective performance.
Stainless Steel 304 Pipe Price
The price of SS 304 pipe in India depends on its size, schedule (thickness), surface finish, and the quantity you buy. It usually costs between ₹200 and ₹300 per kg, based on current nickel and chromium prices. For the latest rates and bulk discounts, contact the listed suppliers directly.
Available Types Of Stainless Steel 304 Pipes
Alloy 304 pipe is available in various forms to meet the different industrial and commercial requirements. Below are the types available:
- Stainless Steel 304 EFW Pipes
- SS 304 Seamless Pipes
- SS 304 Oval Pipes
- SS 304 Welded Pipes
- SS 304 Round Pipes
- SS 304 ERW Pipes
- SS 304 Furniture Pipes
- SS 304 Custom Pipes
- SS 304 Hollow Pipes
- SS 304 Square Pipes
- SS 304 Polished Pipes
- SS 304 Hexagon Pipes
- SS 304 Rectangle Pipes
- SS 304 Thick Wall Pipes
- SS 304 Railing Pipes
Stainless Steel 304 Pipe Specifications
Each SS 304 pipe we supply meets internationally recognised dimensional and material standards. The table below lists the full specification range available:
|
Parameter |
Details |
|
Standards & Grades |
ASTM A312, TP304, ASTM A358, ASME SA312 |
|
Forms Available |
Round, Square, Rectangle |
|
Pipe Schedules |
SCH 5, 10, 20, 40, 80, 160, XXS |
|
Size |
1/8" NPS to 24" NPS (OD: 6.35 mm to 609.6 mm) |
|
Length |
Single Random (4–7 m), Double Random (8–14 m), Cut to Length |
|
End |
Plain End (PE), Bevelled End (BE), Threaded End (TE) |
Chemical Composition Of Stainless Steel 304 Pipes
The chemical composition of SS 304 pipe determines its corrosion resistance and mechanical performance. Chromium and nickel are the two primary alloying elements responsible for its strength and oxidation resistance.
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
304 |
≤0.08 |
≤2.0 |
≤0.75 |
≤0.045 |
≤0.030 |
18.0–20.0 |
– |
8.0–10.5 |
≤0.10 |
Mechanical Properties Of Stainless Steel 304 Pipes
The mechanical properties of SS 304 pipe confirm its suitability for high-stress and high-pressure applications. Its minimum tensile strength of 515 MPa means it can handle tough working conditions without failing.
|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Rockwell B (HR B) max |
Brinell (HB) max |
|
304 |
515 |
205 |
40 |
92 |
201 |
Physical Properties Of Stainless Steel 304 Pipes
The physical properties of alloy 304 pipe define how the material responds to heat, electrical conditions, and mechanical stress. A density of 8000 kg/m³ and an elastic modulus of 193 GPa indicate a structurally strong, thermally stable material.
|
Grade |
Density (kg/m³) |
Elastic Modulus (GPa) |
Thermal Exp. 0–100°C |
Thermal Exp. 0–315°C |
Thermal Exp. 0–538°C |
Conductivity at 100°C (W/m.K) |
Conductivity at 500°C (W/m.K) |
Specific Heat (J/kg.K) |
|
304 |
8000 |
193 GPa |
17.2 μm/m/°C |
17.8 μm/m/°C |
18.4 μm/m/°C |
16.2 |
21.5 |
500 |
Stainless Steel Pipe ASTM A312 TP304
The table below lists the stainless steel 304 pipe sizes:
|
Nominal Bore |
Outside Diameter |
Sch-5S |
Sch-10S |
Sch-40S |
Sch-80S |
Sch-160S |
Sch-XXS |
|||||||
|
mm |
INCH |
mm |
Wt |
Weight |
Wt |
Weight |
Wt |
Weight |
Wt |
Weight |
Wt |
Weight |
Wt |
Weight |
|
mm |
(in) |
mm |
mm |
(Kg/mt) |
mm |
(Kg/mt) |
mm |
(Kg/mt) |
mm |
(Kg/mt) |
mm |
(Kg/mt) |
mm |
(Kg/mt) |
|
3 |
1/8 |
10.3 |
1.24 |
0.276 |
1.24 |
0.28 |
1.73 |
0.37 |
2.41 |
0.47 |
- |
- |
- |
- |
|
6 |
1/4 |
13.7 |
1.24 |
0.39 |
1.65 |
0.49 |
2.24 |
0.631 |
3.02 |
0.8 |
- |
- |
- |
- |
|
10 |
3/8 |
17.1 |
1.24 |
0.49 |
1.65 |
0.63 |
2.31 |
0.845 |
3.2 |
1.1 |
- |
- |
- |
- |
|
15 |
1/2 |
21.3 |
1.65 |
0.8 |
2.11 |
1 |
2.77 |
1.27 |
3.75 |
1.62 |
4.75 |
1.94 |
7.47 |
2.55 |
|
20 |
3/4 |
26.7 |
1.65 |
1.03 |
2.11 |
1.28 |
2.87 |
1.68 |
3.91 |
2.2 |
5.54 |
2.89 |
7.82 |
3.63 |
|
25 |
1 |
33.4 |
1.65 |
1.3 |
2.77 |
2.09 |
3.38 |
2.5 |
4.55 |
3.24 |
6.35 |
4.24 |
9.09 |
5.45 |
|
32 |
1 1/4 |
42.2 |
1.65 |
1.65 |
2.77 |
2.7 |
3.56 |
3.38 |
4.85 |
4.47 |
6.35 |
5.61 |
9.7 |
7.77 |
|
40 |
1 1/2 |
48.3 |
1.65 |
1.91 |
2.77 |
3.11 |
3.68 |
4.05 |
5.08 |
5.41 |
7.14 |
7.25 |
10.16 |
9.54 |
|
50 |
2 |
60.3 |
1.65 |
2.4 |
2.77 |
3.93 |
3.91 |
5.44 |
5.54 |
7.48 |
8.74 |
11.1 |
11.07 |
13.44 |
|
65 |
2 1/2 |
73 |
2.11 |
3.69 |
3.05 |
5.26 |
5.16 |
8.63 |
7.01 |
11.4 |
9.53 |
14.9 |
14.2 |
20.39 |
|
80 |
3 |
88.9 |
2.11 |
4.51 |
3.05 |
6.45 |
5.49 |
11.3 |
7.62 |
15.2 |
11.1 |
21.3 |
15.24 |
27.65 |
|
100 |
4 |
114.3 |
2.11 |
5.84 |
3.05 |
8.36 |
6.02 |
16.07 |
8.56 |
22.3 |
13.49 |
33.54 |
17.12 |
41.03 |
|
125 |
5 |
141.3 |
2.77 |
9.47 |
3.4 |
11.57 |
6.55 |
21.8 |
9.53 |
31.97 |
15.88 |
49.11 |
19.05 |
57.43 |
|
150 |
6 |
168.3 |
2.77 |
11.32 |
3.4 |
13.84 |
7.11 |
28.3 |
10.97 |
42.7 |
18.2 |
67.56 |
21.95 |
79.22 |
|
200 |
8 |
219.1 |
2.77 |
14.79 |
3.76 |
19.96 |
8.18 |
42.6 |
12.7 |
64.6 |
23 |
111.2 |
22.23 |
107.8 |
|
250 |
10 |
273.1 |
3.4 |
22.63 |
4.19 |
27.78 |
9.27 |
60.5 |
12.7 |
96 |
28.6 |
172.4 |
25.4 |
155.15 |
|
300 |
12 |
323.9 |
3.96 |
31.25 |
4.57 |
36 |
9.52 |
73.88 |
12.7 |
132 |
33.32 |
238.76 |
25.4 |
186.97 |
|
350 |
14 |
355.6 |
3.96 |
34.36 |
4.78 |
41.3 |
11.13 |
94.59 |
19.05 |
158.08 |
35.71 |
281.7 |
- |
- |
|
400 |
16 |
406.4 |
4.19 |
41.56 |
4.78 |
47.29 |
12.7 |
123.3 |
21.41 |
203.33 |
40.46 |
365.11 |
- |
- |
|
450 |
18 |
457.2 |
4.19 |
46.8 |
4.78 |
53.42 |
14.27 |
155.8 |
23.8 |
254.36 |
45.71 |
466.4 |
- |
- |
|
500 |
20 |
508 |
4.78 |
59.25 |
5.54 |
68.71 |
15.09 |
183.42 |
26.19 |
311.2 |
49.99 |
564.68 |
- |
- |
|
600 |
24 |
609.6 |
5.54 |
82.47 |
6.35 |
94.45 |
17.48 |
255.41 |
30.96 |
442.08 |
59.54 |
808.22 |
- |
- |
Schedule Chart Of Stainless Steel 304 Pipes
|
1/8" IPS (.405" O.D.) |
3 1/2" IPS (4.000" O.D.) |
|
SCH 40, 80 |
SCH 10, 40, 80, 160, XXH |
|
1/4" IPS (.540" O.D.) |
4" IPS (4.500" O.D.) |
|
SCH 10, 40, 80 |
SCH 10, 40, 80, 160, XXH |
|
3/8" IPS (.675" O.D.) |
5" IPS (5.563" O.D.) |
|
SCH 10, 40, 80 |
SCH 10, 40, 80, 160, XXH |
|
1/2" IPS (.840" O.D.) |
6" IPS (6.625" O.D.) |
|
SCH 5, 10, 40, 80, 160, XXH |
SCH 5, 10, 40, 80, 120, 160, XXH |
|
3/4" IPS (1.050" O.D.) |
8" IPS (8.625" O.D.) |
|
SCH 10, 40, 80, 160, XXH |
SCH 5, 10, 40, 80, 120, 160, XXH |
|
1" IPS: (1.315′ O.D.) |
10" IPS (10.750" O.D.) |
|
SCH 5, 10, 40, 80, 160, XXH |
SCH 10, 20, 40, 80 (.500), TRUE 80 (.500) |
|
1-1/4" IPS (1.660" O.D.) |
12" IPS (12.750" O.D.) |
|
SCH 10, 40, 80, 160, XXH |
SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
|
1-1/2" IPS (1.900" O.D.) |
14" IPS (14.000" O.D.) |
|
SCH 10, 40, 80, 160, XXH |
SCH10 (.188), SCH40 (.375) |
|
2" IPS (2.375" O.D.) |
16" IPS (16.000" O.D.) |
|
SCH 10, 40, 80, 160, XXH |
SCH10(.188), SCH40(.375) |
|
2 1/2" IPS (2.875" O.D.) |
18" IPS (18.000 O.D.) |
|
SCH 10, 40, 80, 160, XXH |
SCH-40 (.375) |
|
3" IPS (3.500" O.D.) |
|
|
SCH 5, 10, 40, 80, 160, XXH |
Key Features Of SS 304 Pipes
SS 304 pipes deliver 6 core performance advantages that make them suitable for critical industrial, food-grade, and architectural applications:
- Corrosion resistance
- High temperature resistance
- Ease of fabrication
- Hygienic properties
- Smooth interior surface
- Low maintenance
Applications of Stainless Steel 304 Pipes
ASTM A312 pipes are used across 5 key industries where corrosion resistance, hygiene, and structural performance are non-negotiable:
- Chemical and petrochemical industry
- Oil and gas industry
- Architecture and construction
- Industrial equipment and machinery
- Food and beverage processing
How To Choose The Right SS 304 Pipe Supplier?
Selecting the right SS 304 pipe supplier creates a big impact on your project’s quality, delivery time, and overall cost.
Selecting The Optimal 304 Stainless Steel Pipe Supplier
Start by confirming product range and stock availability. A supplier that maintains ready inventory across sizes, schedules, and finishes reduces lead time significantly. Ask for mill test reports and material traceability documents before you confirm your order.
Technical Considerations For 304 Stainless Steel
Verify that the supplier's products comply with ASTM A312, ASME SA312, and ASTM A358 standards. Confirm dimensional tolerances, surface finish grades, and heat treatment certifications. Suppliers who offer third-party testing add another layer of assurance.
Evaluating Supplier Credibility And Quality
Check if the supplier has ISO 9001 certification and good quality management practices. Look at client references and past projects in similar industries. Suppliers with clear quality control processes are less likely to deliver poor-quality material.
Strategic Procurement and Long-term Partnership
Find suppliers who provide consistent prices, flexible order sizes, and reliable technical support. Suppliers listed on Piping Mart's offer customised SS 304 pipe solutions with attached documentation, ensuring that projects operate smoothly from purchase to installation process.
Stainless Steel 304 Pipes Suppliers
Stainless Steel 304 Pipes FAQ's
The SS 304 pipes are available in 7 standard schedules, i.e., SCH 5, SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, and XXS. The schedule defines wall thickness.
Yes, The Piping Mart suppliers offer custom ASTM A312 TP304 pipes in non-standard lengths, OD sizes, and wall thicknesses. Custom polished finishes and special end preparations are available on request with full mill certification.
The pressure rating of 304 stainless steel pipe depends on size, wall thickness, and operating temperature. A 1-inch SCH 40 SS 304 pipe carries a maximum allowable working pressure of approximately 3,000 psi at room temperature. Pressure ratings decrease as temperature rises above 100°C. Always calculate pressure ratings per ASME B31.3 for your specific application.
The cost of SS 304 pipes ranges from ₹200 to ₹300 per kilogram, depending on the diameter, schedule, and quality.
The weight of SS 304 pipes depends on their diameter, wall thickness (schedule), and length, using a material density of 7,930 kg/m³.
The pressure rating for 304 stainless steel pipe depends on the pipe size and schedule. Generally, the higher the wall thickness or schedule number, the higher the pressure rating. For example, a 1-inch Schedule 40 pipe has a pressure rating of 310 PSI, while a 1-inch Schedule 80 pipe has a pressure rating of 580 PSI.
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