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- Delhi, India
Home > Stainless Steel > Marine Grade Stainless Steel Pipe
Rithav Pipes and Tubes stands out as a reliable manufacturer and supplier of Marine Grade Stainless Steel Pipe, proudly based in Delhi, India. Our marine-grade stainless steels, including 316, 316L, and duplex alloys, are specifically designed to resist pitting, crevice corrosion, and chloride attack in seawater and coastal settings. Adhering to ASTM A312, ASTM A790, and other relevant standards, our marine stainless steel pipes offer remarkable strength, excellent weldability, and long-lasting durability. We cater to various industries, supplying marine-grade pipes for shipbuilding, offshore oil and gas, desalination plants, ports, and naval engineering projects that demand dependable performance in challenging marine environments.
Marine Grade Stainless Steel Pipes typically feature grades like 316/316L, which contain 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, significantly enhancing pitting resistance. Duplex stainless steel grades, such as 2205, blend ferritic and austenitic microstructures for improved strength and corrosion resistance. Their mechanical properties showcase tensile strength ranging from 485–620 MPa and yield strength between 170–450 MPa, depending on the grade. These pipes are known for their excellent ductility, impact toughness, and weldability, ensuring outstanding resistance to saltwater corrosion and stress corrosion cracking in marine and chloride-rich environments.
| Size | 1/8″(10.3mm) to 12″(323.8mm) |
| Grades | TP -304, 316,316L, |
| Schedule | 5/5S,10/10S,20/20S,40/40S,80/80S,120/120S,160/160S according to ANSI B36.19/36.10 |
| Marine Grade Stainless Steel Pipe Applications | marine fittings, marine fasteners, and marine structures |
| Finish | Satin Finish(180#.240#.320#).,Bright Finish(400#,600#,mirror),Mill Finish(2B),Hairline-Finish(HL/Brushed),Ti-gold, Glossy matt,dull and so on. |
| PIPE SIZE | OD IN INCHES | A.S.A. Pipe Schedules | |||||||||||||||
| 5s | 5 | 10s | 10 | 20 | 30 | 40s & Std. | 40 | 60 | 80s & E.H. | 80 | 100 | 120 | 140 | 160 | DBL E.H. | ||
| 1/8 | .405 | .035.1383 | .049.1863 | .049.1863 | .068.2447 | 068.2447 | 0.95.3145 | 0.95.3145 | |||||||||
| 1/4 | .540 | .049.2570 | .065.3297 | .065.3297 | .088.4248 | 088.4248 | .119.5351 | .119.5351 | |||||||||
| 3/8 | .675 | .049.3276 | .065.4235 | .065.4235 | .091.5676 | .091.5676 | .126.7338 | .126.7338 | |||||||||
| 1/2 | .840 | .065.5383 | .065.5383 | .083.6710 | .083.6710 | .109.8510 | .109.8510 | .1471.088 | .1471.088 | .1871.304 | .2941.714 | ||||||
| 3/4 | 1.050 | .065.6838 | .065.6838 | .083.8572 | .083.8572 | .1131.131 | .1131.131 | .1541.474 | .1541.474 | .2181.937 | .3082.441 | ||||||
| 1 | 1.315 | .065.8678 | .065.8678 | .1091.404 | .1091.404 | .1331.679 | .1331.679 | .1792.172 | .1792.172 | .2502.844 | .3583.659 | ||||||
| 1-1/4 | 1.660 | .0651.107 | .0651.107 | .1091.806 | .1091.806 | .1402.273 | .1402.273 | .1912.997 | .1912.997 | .2503.765 | .3825.214 | ||||||
| 1-1/2 | 1.900 | .0651.274 | .0651.274 | .1092.085 | .1092.085 | .1452.718 | .1452.718 | .2003.631 | .2003.631 | .2814.859 | .4006.408 | ||||||
| 2 | 2.375 | .0651.604 | .0651.604 | .1092.638 | .1092.638 | .1543.653 | .1543.653 | .2185.022 | .2185.022 | .3437.444 | .4369.029 | ||||||
| 2-1/2 | 2.875 | .0832.475 | .0832.475 | .1203.531 | .1203.531 | .2035.793 | .2035.793 | .2767.661 | .2767.661 | .37510.01 | .55213.70 | ||||||
| 3 | 3.500 | .0833.029 | .0833.029 | .1204.332 | .1204.332 | .2167.576 | .2167.576 | .30010.25 | .30010.25 | .43714.32 | .60018.58 | ||||||
| 3-1/2 | 4.000 | .0833.472 | .0833.472 | .1204.973 | .1204.973 | .2269.109 | .2269.109 | .31812.51 | .31812.51 | .63622.85 | |||||||
| 4 | 4.500 | .0833.915 | .0833.915 | .1205.613 | .1205.613 | .23710.79 | .23710.79 | .28112.66 | .33714.98 | .33714.98 | .43719.01 | .53122.51 | .67427.54 | ||||
| 4-1/2 | 5.000 | .24712.53 | .35517.61 | .71032.53 | |||||||||||||
| 5 | 5.563 | .1096.349 | .1096.349 | .1347.770 | .1347.770 | .25814.62 | .25814.62 | .37520.78 | .37520.78 | .50027.04 | .62532.96 | .75038.55 | |||||
| 6 | 6.625 | .1097.585 | .1097.585 | .1349.290 | .1349.290 | .28018.97 | .28018.97 | .43228.57 | .43228.57 | .56236.39 | .71845.30 | .86453.16 | |||||
| 7 | 7.625 | .30123.57 | .50038.05 | .87563.08 | |||||||||||||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Marine Grade Stainless Steel Pipes from Rithav Pipes and Tubes ensures high-quality materials with excellent corrosion resistance and durability. Our products are tailored to meet diverse industry standards, offering reliability and versatility for various applications. Our commitment to customer service and timely delivery makes us a trusted supplier.
Rithav Pipes and Tubes, one of the largest suppliers of Marine Grade Stainless Steel Pipes in Delhi, India, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
| Marine Grade Stainless Steel Pipe Grades | UNS | Si | Mn | S | C | P | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|---|
| TP304 | S30400 | 1 | 2 | 0.03 | 0.08 | 0.045 | 18.0-20.0 | 8.0-11.0 | – |
| TP304L | S30403 | 1 | 2 | 0.03 | 0.035 | 0.045 | 18.0-20.0 | 8.0-13.0 | – |
| Material | Tensile Strength | Yield Strength | Heat | Temperure | Elongation %, Min |
|---|---|---|---|---|---|
| Ksi (MPa), Min. | Ksi (MPa), Min. | Treatment | Min. | ||
| º F(º C) | |||||
| Stainless Steel | 75(515) | 30(205) | Solution | 1900 (1040) | 35 |
| Nominal | SS Square Pipe Schedule 5 | SS Square Pipe Schedule 10 | SS Square Pipe Schedule 40 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Inch | MM | Wt./MM | Kg./M | Kg./Ft | Wt./MM | Kg./M | Kg./Ft | Wt./MM | Kg./M | Kg./Ft |
| 1 / 2 | 21 | 1.65 | 0.801 | 0.244 | 2.11 | 0.999 | 0.305 | 2.77 | 1.270 | 0.387 |
| 3 / 4 | 21.30 | 1.65 | 1.020 | 0.311 | 2.11 | 1.280 | 0.390 | 2.87 | 1.680 | 0.512 |
| 1 | 26.70 | 1.65 | 1.290 | 0.393 | 2.77 | 2.090 | 0.637 | 3.38 | 2.500 | 0.762 |
| 1 1 / 4 | 33.40 | 1.65 | 1.650 | 0.503 | 2.77 | 2.690 | 0.820 | 3.56 | 3.380 | 1.030 |
| 1 1 / 2 | 42.20 | 1.65 | 1.900 | 0.579 | 2.77 | 3.110 | 0.948 | 3.68 | 4.050 | 1.230 |
| 2 | 48.30 | 1.65 | 3.340 | 0.728 | 2.77 | 3.920 | 1.200 | – | – | – |
| 2 1 / 2 | 73.00 | 2.11 | 3.690 | 1.130 | 3.05 | 5.260 | 1.600 | – | – | – |
| 3 | 88.90 | 2.11 | 4.510 | 1.380 | 3.05 | 6.450 | 1.970 | – | – | – |
| 3 1 / 2 | 101.60 | 2.11 | 5.190 | 1.580 | 3.05 | 7.400 | 2.260 | – | – | – |
Yes, we offer custom sizes for Marine Grade Stainless Steel Pipes to meet your specific requirements. Our team at Rithav Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@rithavpipesandtubes.co.in.
Marine stainless steel pipe is primarily used in applications requiring good corrosion resistance especially in saltwater environments. Typical applications include shipbuilding and offshore oil and gas operations, desalination plants, and marine infrastructure such as ports and harbors. These pipelines are important in marine cooling systems, ballast water applications and submarine pipelines. In addition they are used in marine outlets, heat exchanger systems and fuel lines due to their robustness, high efficiency and ability to withstand harsh marine conditions, ensuring uptime long reliable.
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