Harsh Metalloys, based in Mumbai, India, is a leading manufacturer and supplier of high-performance Stainless Steel Seamless Pipes for a broad spectrum of industries. These pipes are crafted without any welds or joints, offering superior strength, uniformity, and corrosion resistance. Engineered to meet global standards like ASTM A312, A213, and A269, our seamless pipes are available in various stainless steel grades such as 304, 304L, 316, 316L, and 321. Harsh Metalloys ensures precise dimensions, smooth finishes, and robust mechanical integrity, making these pipes ideal for critical applications in industries like oil & gas, petrochemicals, and power generation.
Stainless Steel Seamless Pipes are typically composed of chromium (18–20%), nickel (8–14%), and, in some cases, molybdenum (2–3%), depending on the grade. These compositions provide excellent corrosion resistance, high-temperature strength, and resistance to oxidation. Mechanical properties include tensile strength ranging from 515–620 MPa and yield strength between 205–310 MPa. Seamless pipes also exhibit good elongation, formability, and weldability. Harsh Metalloys ensures all pipes undergo strict quality control for chemical composition, dimensional accuracy, and mechanical integrity to ensure long-term performance in high-pressure and high-temperature environments.
| Range : | 6NB to 1200NB |
| Outer Diameter : | 1/8″ NPS to 12″ NPS |
| Thickness : | 0.6 mm to 12.7 mm |
| Schedules : | SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. |
| Length : | Single Random, Double Random & Cut Length |
| Specifications : | ASTM A312 / ASTM SA312 |
| Types : | Round, Square, Rectangle, Hydraulic, Honed Tubes |
| End : | Plain End, Beveled End |
| Grade | UNS # | Content % by weight | |||||||
| Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Molybdenum | ||
| TP304 | S30400 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18 – 20 | 8 – 11 | x |
| TP304L | S30403 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18 – 20 | 8 – 13 | x |
| TP316 | S31600 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16 – 18 | 10 – 14 | 2 – 3 |
| TP316L | S31603 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 16 – 18 | 10 – 14 | 2 – 3 |
| Steel Grade | N/mm 2 MIN. Tensile Stress | N/mm 2 MIN. Proof Stress | % MIN. Elongation | HRB MAX. Hardness |
| SUS304 | 520 | 205 | 40 | 90 |
| SUS304L | 480 | 175 | 40 | 90 |
| SUS310S | 520 | 205 | 40 | 90 |
| SUS316L | 480 | 175 | 40 | 90 |
| SUS321 | 520 | 205 | 40 | 90 |
Contact us to get a quick quote for your requirement.
| SS TP 304 Seamless Pipes | Stainless TP 304L Seamless Tubing |
| ASTM A213 Stainless Welded Pipe | A249 SS TP Welded Tubes |
| ASTM A358 310S Stainless ERW Pipe | A312 SS 310 Rectangular Seamless Pipe |
| ASTM A213 316 SS Rectangular Tubes | TP 316L SS ERW Tubes |
| TP 316H Stainless Coiled Seamless Tubing | SS Heat Ex-changer Tubes |
| Stainless 317L Round Tubing | ASTM A213 317 Stainless Square Seamless Pipes |
| ASME TP Stainless Electric Fusion Welding Pipes | TP 321 SS EFW Tubing |
We are delivering the most seamless customer experience with their exhaustive documentations attached with the Stainless Steel Seamless Pipes. The despatch is done along with essential documents like a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and an NABL-approved lab test report covering the fact of authenticity and quality beyond comparison. In addition to this, we offer a battery of test certificates such as MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate, as well as our commitment to client satisfaction and our uncompromising pursuit of excellence on every product we deliver.
Yes, stainless steel seamless pipes are ideal for hygienic and sanitary applications due to their corrosion resistance, smooth surface finish, and ability to prevent contamination and bacterial growth.
Stainless steel seamless pipes are generally resistant to galvanic corrosion, especially when properly passivated. However, if in contact with more anodic metals, galvanic corrosion can occur in certain environments.
Yes, stainless steel seamless pipes are highly recyclable. They can be melted down and repurposed for new products without losing quality, making them a sustainable material option.
Yes, stainless steel seamless pipes are suitable for cryogenic applications due to their excellent toughness, strength, and resistance to brittle fracture at extremely low temperatures.
Stainless Steel Seamless Pipes are widely used in industries requiring high durability and corrosion resistance. They are essential in oil & gas pipelines, chemical processing, pharmaceutical manufacturing, food and beverage production, heat exchangers, and high-pressure boilers. Their seamless design eliminates weak points, making them ideal for high-stress and high-temperature environments. Harsh Metalloys supplies seamless pipes in a variety of diameters, schedules, and lengths tailored to client needs. These pipes offer a leak-proof solution with excellent flow characteristics, making them a preferred choice for fluid and gas transport in both industrial and commercial applications.
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