Stainless Steel 316 Pipes
Stainless Steel 316 pipes, commonly known as 'marine-grade stainless steel' or 'SS 316 pipes', are austenitic pipes having a molybdenum content of 2.0% to 3.0%. This molybdenum addition distinguishes them from the regular 304 grade, providing improved resistance to chlorides and corrosive conditions. From chemical processing factories to pharmaceutical lines, SS 316 pipes can withstand harsh environments without sacrificing structural integrity. The grade is highly resistant to pitting, crevice corrosion, and intergranular attack. With a tensile strength of 515 MPa and a density of 8,000 kg/m³, these pipes combine mechanical strength with outstanding longevity, making them the preferred choice for marine, industrial, and food-grade applications globally.
316 Stainless Steel Pipe Price In India
The pricing of SS 316 pipes in India varies according to their diameters, surface polish, and order volume. Understanding the 3 primary pricing criteria listed below might help you plan your purchase costs properly.
- Approximate price range: SS 316 pipes in India are priced approximately between INR 250 and INR 650 per kg, depending on the pipe schedule and finish type.
- Cost per foot (approx.): Prices typically range from INR 80 to INR 400 per foot. Seamless pipes and thick-wall schedules fall on the higher end of this range.
- Factors affecting price: 3 main factors influence the cost: raw material rates (nickel and molybdenum prices fluctuate significantly), pipe dimensions, including outer diameter and wall thickness, and surface finish requirements, such as polished or mirror finish grades.
Available Types Of Stainless Steel 316 Pipes:
- Stainless Steel 316 EFW Pipes
- SS 316 Seamless Pipes
- SS 316 Oval Pipes
- SS 316 Welded Pipes
- SS 316 Round Pipes
- SS 316 ERW Pipes
- SS 316 Furniture Pipes
- SS 316 Custom Pipes
- SS 316 Hollow Pipes
- SS 316 Square Pipes
- SS 316 Polished Pipes
- SS 316 Hexagon Pipes
- SS 316 Rectangle Pipes
- SS 316 Thick Wall Pipes
- SS 316 Railing Pipes
- Ss 316 Decorative pipes
Stainless Steel 316 Pipe Specifications
SS 316 pipes are manufactured under internationally recognised standards that define chemical tolerances, dimensional accuracy, and mechanical performance requirements.
|
Parameter |
Range / Options |
Standard |
ASTM A312 TP316, ASTM A358 TP316, ASME SA312, SA312 TP316 |
|
Outer diameter |
6.35 mm to 609.6 mm (1/4 inch to 24 inches) |
|
Pipe schedules |
SCH 5, SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS |
|
Forms available |
Seamless, welded (ERW, EFW), square, rectangular, oval, hexagonal |
|
Wall thickness |
0.5 mm to 30 mm, depending on the schedule and OD |
|
Finish |
2B, No. 4, BA (Bright Annealed), No. 8 Mirror, Brushed, Matte |
Chemical Composition Of Stainless Steel 316 Pipes
The chemical composition of SS 316 pipes defines corrosion resistance and mechanical performance. The 2.0–3.0% molybdenum range is the critical differentiator from the 304 grade.
|
Grade |
C max |
Mn max |
Si max |
P max |
S max |
Cr |
Mo |
Ni |
N max |
|
316 |
0.08 |
2.0 |
0.75 |
0.045 |
0.030 |
16.0–18.0% |
2.0–3.0% |
10.0–14.0% |
0.10 |
Mechanical Properties Of Stainless Steel 316 Pipes
SS 316 pipes maintain consistent mechanical performance across a wide temperature range. The values below apply at room temperature per ASTM A312 TP316 requirements.
|
Grade |
Tensile strength (MPa) min |
Yield strength 0.2% proof (MPa) min |
Elongation (% in 50mm) min |
Rockwell B (HR B) max |
Brinell (HB) max |
|
316 |
515 |
205 |
40% |
95 |
217 |
Physical Properties Of Stainless Steel 316 Pipes
The physical properties of SS 316 pipes determine thermal performance and electrical behaviour, both critical for process engineering design.
|
Property |
Value |
|
Density |
8,000 kg/m3 |
|
Elastic modulus |
193 GPa |
|
Mean coeff. thermal expansion (0–100°C) |
15.9 m/m/°C |
|
Mean coeff. thermal expansion (0–315°C) |
16.2 m/m/°C |
|
Mean coeff. thermal expansion (0–538°C) |
17.5 m/m/°C |
|
Thermal conductivity at 100°C |
16.3 W/m.K |
|
Thermal conductivity at 500°C |
21.5 W/m.K |
|
Specific heat (0–100°C) |
500 J/kg.K |
|
Electrical resistivity |
740 n.m |
Size Chart of Stainless Steel 316 Schedule 40 Pipe
The following table mentions the 316 stainless steel pipe sizes:
|
316 Stainless Steel Pipes OD mm |
Pipe WT mm |
in. |
Sch |
Kg/m |
|
13.72 |
1.65 |
1/4 |
10S |
0.5 |
|
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 |
3.2 |
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 |
1.3 |
|
26.67 |
2.87 |
3/4 |
40S |
1.71 |
|
26.67 |
3.91 |
3/4 |
80S |
2.23 |
|
33.4 |
2.77 |
1 |
10S |
2.13 |
|
33.4 |
3.38 |
1 |
40S |
2.54 |
|
33.4 |
4.55 |
1 |
80S |
3.29 |
|
33.4 |
6.352) |
1 |
160 |
4.3 |
|
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 |
7.6 |
|
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 |
|
88.9 |
3.05 |
3 |
10S |
6.56 |
|
88.9 |
5.49 |
3 |
40S |
11.47 |
|
88.9 |
7.62 |
3 |
80S |
15.51 |
|
88.9 |
11.132) |
3 |
160 |
21.67 |
|
101.6 |
3.05 |
3½ |
10S |
7.53 |
|
101.6 |
5.74 |
3½ |
40S |
13.78 |
|
101.6 |
8.08 |
3½ |
80S |
18.92 |
|
114.3 |
3.05 |
4 |
10S |
8.5 |
|
114.3 |
6.02 |
4 |
40S |
16.32 |
|
114.3 |
8.56 |
4 |
80S |
22.67 |
|
114.3 |
13.492) |
4 |
160 |
34.05 |
|
141.3 |
6.55 |
5 |
40S |
22.1 |
|
141.3 |
9.53 |
5 |
80S |
31.44 |
|
141.3 |
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 |
43.2 |
|
219.08 |
12.7 |
8 |
80S |
65.63 |
|
219.08 |
18.23 |
8 |
120 |
91.3 |
|
219.08 |
23.012) |
8 |
160 |
112.97 |
Schedules chart of 316 Stainless Steel Seamless Pipe
The table below specifies the stainless steel 316 pipe schedules:
|
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 316 Pipes
SA 312 TP 316 pipes deliver 5 performance advantages that make them the industry standard for corrosive and high-demand environments.
- Excellent corrosion resistance
- Strength and durability
- Aesthetic appearance
- Temperature resistance
- Ease of fabrication
Applications of Stainless Steel 316 Pipes
SS 316 pipes are used in 7 key industries that need strong, corrosion‑resistant pipes.
- Chemical processing plants
- Food and beverage industry
- Marine applications
- Pharmaceutical manufacturing
- Oil and gas industry
- Medical devices and equipment
- Construction and architectural uses
How To Choose The Right SS 316 Pipe Supplier
Choosing the right supplier has a direct impact on product quality, project timeliness, and long-term reliability. Before placing a purchase order, consider the following six criteria.
- Evaluate the manufacturer's technical expertise: A reliable supplier should have an extensive understanding of ASTM, ASME, and EN standards. Look for suppliers who can provide material test reports (MTR) and third-party inspection certificates when requested.
- Check grade availability and product range: The supplier must stock standard SS 316 sizes across multiple schedules and forms, such as seamless, welded, square, and rectangular. Limited inventory can delay project timelines.
- Verify quality certifications and testing capabilities: Verify ISO 9001 certification and in-house testing facilities covering hydrostatic testing, PMI (positive material identification), and ultrasonic testing as a minimum.
- Examine the strength of raw material sourcing: Quality pipes start with prime raw material. Ensure the supplier sources certified billets and coils from reputed steel mills with traceable mill certifications.
- Assess customisation capabilities: Projects often require non-standard sizes, special finishes, or cut-to-length pipes. A capable supplier should offer custom cutting, polishing, and threading services in-house.
- Review delivery schedules and supply capacity: Confirm the lead times for both conventional stock and special orders. A supplier with appropriate warehouse inventory can meet urgent requests without delay.
Stainless Steel 316 Pipes Suppliers
Stainless Steel 316 Pipes FAQ's
In India, the cost of SS 316 pipe is usually about INR 250–650 per kg. The exact price depends on the pipe’s thickness, size, finish, and the quantity ordered. Seamless pipes and mirror-polished grades cost more than standard welded or 2B-finish pipes.
SS 316 is an austenitic chromium-nickel-molybdenum stainless steel grade. The molybdenum content (2.0–3.0%) gives it superior corrosion resistance compared to standard 304 grade, especially in chloride and acid environments. It complies with ASTM A312 TP316 and ASME SA312 standards for pipe manufacturing.
316 stainless steel works well in harsh, corrosive, or marine environments because it resists rust from chlorides. For regular indoor use or areas with low corrosion, 304 stainless steel is usually adequate and more cost-effective than 316.