Stainless Steel Seamless Pipe/Tube
Stainless Steel Seamless Pipes/Tubes are renowned for their exceptional strength, corrosion resistance, and ability to withstand high pressure and extreme temperatures. Manufactured without welds, these pipes provide superior structural integrity and a smooth internal finish. They are widely used in the oil and gas industry, aerospace sector, fuel and hydraulic systems, and marine environments.
Properties of Stainless Steel Seamless Pipe/Tube
Oxidation Resistance
Stainless Steel Seamless Pipes/Tubes offer exceptional oxidation resistance, allowing them to maintain their structural integrity even when exposed to high temperatures in oxidizing environments. This makes them ideal for use in power plants, chemical processing facilities, and heat exchanger systems.
Fire Resistance
Stainless Steel Seamless Pipes/Tubes have a high melting point and are non-flammable, providing excellent fire resistance. This makes them a safe and reliable choice for use in flammable environments such as refineries, industrial boilers, and high-rise building infrastructure.
Sustainability
Stainless Steel Seamless Pipes/Tubes are highly durable and fully recyclable, helping reduce maintenance requirements and environmental impact over their service life. This makes them particularly attractive to industries that prioritize environmental responsibility, such as green building, renewable energy, and eco-friendly manufacturing.
Available Size of Stainless Steel Seamless Pipe/Tube
| Product Name | Executive Standard | Dimension | Steel Grade |
| Seamless Austenitic Stainless Steel Pipes |
ASTM A312/ A312M ASME SA312/ SA312M |
OD: 6-813mm WT: SCH. 5S-SCH. 80S |
TP304, TP304L, TP304LN, TP304H, TP310S, TP310H, S31050, TP316, TP316L, TP316LN, TP316TI, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Austenitic Stainless Steel Tubing for General Service |
ASTM A269 ASME SA269 |
OD: 6.0-50.8mm WT: 0.8-10.0mm |
TP304, TP304L, TP316, TP316L, TP317, TP321, TP347 |
| Seamless Austenitic Alloy Steel Boiler, Super Heater and Heat Exchanger Tubes |
ASTM A213/ A213M ASME SA213/ SA213M |
OD: 6.0-50.8mm WT: 0.8-10.0mm |
TP304, TP304L, TP304H, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Duplex Stainless Steel Tubing for General Service | ASTM A789/ A789M | OD: 19.0-60.5mm WT: 1.2-5.0mm |
S31500, S31803, S32205, S32707, S32750, S32760, S32906 |
| Seamless Duplex Stainless Steel Pipes | ASTM A790/ A790M |
OD: 19.05-254mm WT: SCH. 5S-SCH. 80S |
S31803, S32205, S32750 |
| Seamless Stainless Steel Mechanical Tubing | ASTM A511 |
OD: 6.0-50.8mm WT: 1.8-10.0mm |
MT304, MT304L, MT310S, MT316, MT316L, MT317, MT321, MT347 |
| Seamless Stainless Steel Tubes for Pressure Purposes |
EN 10216 DIN 17456, 17458 |
OD: 6.0-530.0mm WT: 0.8-34.0mm |
1.4301, 1.4307, 1.4541, 1.4401, 1.4404, 1.4571, 1.4878, 1.4432, 1.4462 |
| Type | Steel Grade |
| Super Austenitic Stainless Steel |
N08904, N08367, S31254 |
| Nickel Alloy |
N02200, N02201, N04400, N05500, N06600, N06601, N06625, N06617, N07718, N08800, N08810, N08811, N08028, N08825, N10276, N06455, N06022, N06200, N10665, N10675, N06002, N06030, N07750, N08020, N08925, N08904, S31254, N08367, N08926, N08366, 316Lmod, S31500, S31050, S31803, S32750, S17700, S15500, S17400 |
| API Corrosion Resistant Alloy |
LC30-1812, LC65-2205, LC65-2506, LC80-2507, LC30-2242 |
| Standard Types | Standard |
| ASTM |
ASTM A312, ASTM A213, ASTM A269, ASTM A376, ASTM A551, ASTM A789, ASTM A790, ASTM B163, ASTM B167, ASTM B407, ASTM B423, ASM B444, ASTM B677 |
| ASME |
ASME SA312, ASME SA789, ASME SA790, ASME SA376, ASME SA213, ASME SB163, ASME SB167, ASME SB407, ASME SB423, ASME SB444, ASME SB677 |
| API |
API 5LC |
| JIS | JIS G3459, JIS G3463 |
| EN | EN 10216-5, EN 10216-2 |
| GOST | GOST 5632-72, GOST 9941-81 |
| DIN | DIN 17456, DIN 17458 |
| Industrial Certificates | ABS, CCS, DNV-GL, LR, RINA, BV, KR |
Packaging of Stainless Steel Seamless Pipe/Tube
| Surface Protection | Bundling and Cushioning | Packaging and Securing |
| Each Stainless Steel Seamless Tube/Pipe is individually wrapped in protective materials, such as plastic film or foam wrap, to prevent scratches, dust, and surface abrasion during handling and transportation. | Stainless Steel Seamless Pipes/Tubes are grouped and bundled using stretch film, strapping, or shrink wrap. Corner guards or padding are often added between tubes/ pipes to prevent movement and impact damage. | The packaged Stainless Steel Seamless Pipes/Tubes are secured in sturdy steel boxes, wooden crates, or pearl cotton packaging to prevent surface contact and ensure structural stability during loading and international transportation. |
Chemical Composition of Stainless Steel Welded Pipe/Tube (For Reference)
| Grade | UNS Designation | Ca (%) | Mn (%) | P (%) | S (%) | Si (%) | Cr (%) | Ni (%) | Mo (%) |
| TP304 | S30400 | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | - |
| TP304L | S30403 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-13.0 | - |
| TP316 | S31600 | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| TP316L | S30603 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
Mechanical Property of Stainless Steel Seamless Pipe/Tube (For Reference)
| Grade | UNS Designation | Tensile Strength, MIN ksi [MPa] | Yield Strength, MIN ksi [MPa] |
| TP304 | S30400 | 75 [515] | 30 [205] |
| TP304L | S30403 | 70 [485] | 25 [170] |
| TP316 | S31600 | 75 [515] | 30 [205] |
| TP316L | S30603 | 70 [485] | 25 [170] |
Application of Pipe/ Tube
Aerospace
Stainless Steel Seamless Pipes/Tubes provide the high mechanical strength, lightweight efficiency, and thermal stability required for aircraft hydraulic tubing, fuel lines, and engine components. Their resistance to fatigue and oxidation ensures consistent performance in extreme temperature environments.
Marine Applications
The marine industry values Stainless Steel Seamless Pipes/Tubes for their exceptional resistance to saltwater corrosion and biofouling. These pipes are extensively used in shipbuilding, ballast systems, and offshore structures, where structural integrity and long-term durability are critical.
Oil & Gas
Stainless Steel Seamless Pipes/Tubes are essential in the oil and gas industry because they can withstand extreme pressure, corrosive environments, and high temperatures. Their seamless construction eliminates weak points caused by welded joints, making them ideal for pipelines, downhole tubing, and offshore drilling operations.
Power Generation
Stainless Steel Seamless Pipes/Tubes are used in high-pressure steam systems and heat exchangers. Their ability to withstand extreme temperatures and resist scaling ensures efficient heat transfer while reducing the risk of leaks or failures, thereby supporting uninterrupted energy production.
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