At Om Steel, we are committed to providing high-quality stainless steel pipes and pipe fittings that are designed to meet the unique needs of our clients. Our stainless steel pipes are manufactured using the latest technology and high-quality raw materials, ensuring they are durable, reliable, and long-lasting.
One of the key features of our stainless steel pipes is their corrosion resistance. Stainless steel pipes are known for their excellent resistance to corrosion, making them ideal for use in harsh environments where other materials may fail. This is because stainless steel contains chromium, which reacts with oxygen to form a protective layer on the surface of the material.
Another important feature of our stainless steel pipes is their strength and durability. Stainless steel pipes are known for their high strength-to-weight ratio, which makes them ideal for use in heavy-duty applications. They are also resistant to wear and tear, making them a popular choice for applications where the material is subjected to constant stress.
At Om Steel, we offer a wide range of stainless steel pipe sizes and thicknesses to meet the diverse needs of our clients. Our stainless steel pipes are available in various finishes, including mirror, brushed, and satin, to meet different aesthetic preferences.
Different Types of Stainless Steel Used in the Production of Pipe and Fittings
Stainless steel is a widely used material in the production of pipe and fittings due to its excellent corrosion resistance, strength, durability, and aesthetic appeal. However, not all stainless steels are created equal. There are different types of stainless steel that vary in composition, properties, and applications.
Austenitic Stainless Steel
Austenitic stainless steel is the most commonly used type of stainless steel for pipe and fittings due to its excellent corrosion resistance, formability, weldability, and toughness. It contains high levels of chromium (usually 18% or more) and nickel (usually 8% or more) which provide its superior corrosion resistance. Austenitic stainless steel can be further classified into two subgroups: 300 series and 200 series.
The 300 series austenitic stainless steels are the most widely used for pipe and fittings due to their excellent corrosion resistance even in harsh environments such as marine or chemical processing plants. The most common grades within this group are 304/304L (UNS S30400/S30403), 316/316L (UNS S31600/S31603), and 321 (UNS S32100). These grades offer a good combination of strength, ductility, formability, weldability, and corrosion resistance.
Ferritic Stainless Steel
Ferritic stainless steel is another type of stainless steel that is commonly used for pipe and fittings due to its good corrosion resistance, high-temperature strength, low thermal expansion coefficient, and magnetic properties. It contains high levels of chromium (usually 12% or more) and low levels of nickel (usually less than 2%). Ferritic stainless steel can be further classified into two subgroups: standard and stabilized.
The standard ferritic stainless steels are the most commonly used for pipe and fittings due to their good corrosion resistance in mildly corrosive environments such as water or atmospheric conditions. The most common grades within this group are 409 (UNS S40900), 430 (UNS S43000), and 439 (UNS S43035).
Martensitic Stainless Steel
Martensitic stainless steel is a type of stainless steel that is commonly used for pipe and fittings that require high strength, hardness, wear resistance, and corrosion resistance. It contains high levels of chromium (usually 12% or more) and low levels of nickel (usually less than 2%). Martensitic stainless steel can be further classified into two subgroups: heat-treatable and precipitation hardenable.
The heat-treatable martensitic stainless steels can be hardened by heat treatment to achieve high strength, hardness, and wear resistance but at the cost of reduced ductility, toughness, formability, and corrosion resistance. The most common grades within this group are 410 (UNS S41000) and 420 (UNS S42000).
Duplex Stainless Steel
Duplex stainless steel is a type of stainless steel that contains both austenitic and ferritic microstructures in roughly equal proportions. It offers a unique combination of high strength, toughness, corrosion resistance, and weldability. Duplex stainless steel can be further classified into two subgroups: standard and super.
The standard duplex stainless steels are the most commonly used for pipe and fittings due to their good corrosion resistance in aggressive environments such as those containing chlorides or acids. The most common grades within this group are 2205 (UNS S32205/S31803) and 2507 (UNS S32750).
Stainless Steel Pipes
Specification
| Property | Details |
|---|---|
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD |
| Thickness Range | 0.3mm – 50 mm, SCH10, SCH 5, SCH XXS, SCH 80, SCH 40, SCH 160, SCH 80S, SCH XS |
| Sizes | 1/2 inch NB to 48 inch NB |
| Length | Double Random, Single Random & Required Length |
| Form | Square Pipe, Round Pipes, Rectangular Pipe |
| End | Beveled End, Plain End, Threaded |
| Outside Finish | No.4, 2B, No.8, No.1 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| End Protection | Plastic Caps |
| Delivery Condition | Bright Annealed, Polished, Annealed and Pickled, Cold Drawn |
| Mills | Japanese Mills, Indian Mills, European Mills, Korean Mills, US Mills |
| Inspection, Test Reports | Destructive Test Report, EN 10204 3.1, Mill Test Certificates, Chemical Reports, Mechanical Reports, Visual Inspection Reports, NABL Approved Lab Reports, PMI Test Reports, Non Destructive Test Reports, Third Party Inspection Reports |
| Specials | Sizes and Specifications other than above can be manufactured on request |
Stainless Steel Pipe
Finishes
| Surface Finish Types |
|---|
| Mirror Finish |
| 2B Finish |
| Brushed Finish |
| Mill Finish |
| Hairline Finish |
| Surface Finish Chart |
| Internal Surface Finish |
| Satin Finish |
Stainless Steel Pipe
series
| NPS (Inch) | NPS (mm) | O.D. (mm) | Sch 5S | Sch 10S | Sch 40S | |||
|---|---|---|---|---|---|---|---|---|
| Inch | mm | Inch | mm | Inch | mm | |||
| 1/2″ | 15 | 21.34 | 0.065 | 1.65 | 0.083 | 2.11 | 0.109 | 2.77 |
| 3/4″ | 20 | 26.67 | 0.065 | 1.65 | 0.083 | 2.11 | 0.109 | 2.77 |
| 1″ | 25 | 33.4 | 0.065 | 1.65 | 0.109 | 2.77 | 0.133 | 3.38 |
| 1 1/4″ | 32 | 42.16 | 0.065 | 1.65 | 0.109 | 2.77 | 0.14 | 3.56 |
| 1 1/2″ | 40 | 48.26 | 0.065 | 1.65 | 0.109 | 2.77 | 0.145 | 3.56 |
| 2″ | 50 | 60.33 | 0.065 | 1.65 | 0.109 | 2.77 | 0.154 | 3.91 |
| 2 1/2″ | 65 | 73.03 | 0.083 | 2.11 | 0.12 | 3.05 | 0.203 | 5.49 |
| 3″ | 80 | 88.9 | 0.083 | 2.11 | 0.12 | 3.05 | – | – |
Stainless Steel Pipe
Sizes
| Size (mm) | 0.65 | 0.8 | 1.00 | 1.20 | 1.50 | 2.00 | 3.00 | 4.00 | 5.00 |
|---|---|---|---|---|---|---|---|---|---|
| 20X10 | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – | – |
| 13X26 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – |
| 20X40 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – |
| 30X10 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – |
| 40X10 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – |
| 50X10 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | – | – |
| 25X50 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | – | – |
| 60X40 | – | – | – | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 75X25 | – | – | – | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 80X40 | – | – | – | – | ✓ | ✓ | ✓ | ✓ | ✓ |
| 50X100 | – | – | – | – | ✓ | ✓ | ✓ | ✓ | ✓ |
| 40X100 | – | – | – | – | ✓ | ✓ | ✓ | ✓ | ✓ |
| 60X100 | – | – | – | – | ✓ | ✓ | ✓ | ✓ | ✓ |
| 80X60 | – | – | – | – | – | ✓ | ✓ | ✓ | ✓ |
Properties of Stainless steel
Pipes
| Grade | Tensile Strength Min (MPa) | Yield Point Min (MPa) | Elongation Min (%) | Rockwell Max |
|---|---|---|---|---|
| TP 304 | 515 | 205 | 35 | 90 |
| TP 304H | 550 | 240 | 35 | 90 |
| TP 304L | 485 | 170 | 35 | 90 |
| TP 309S | 515 | 205 | 35 | 90 |
| TP 310S | 515 | 205 | 35 | 90 |
| TP 316 | 515 | 205 | 35 | 90 |
| TP 316L | 485 | 170 | 35 | 90 |
| TP 316Ti | 515 | 205 | 35 | 90 |
| TP 317 | 515 | 205 | 35 | 90 |
| TP 321 | 515 | 205 | 35 | 90 |
| TP 321H | 515 | 205 | 35 | 90 |
| TP 347 | 515 | 205 | 35 | 90 |
| TP 347H | 515 | 205 | 35 | 90 |
Application Industry
Serving Diverse Sectors with Precision & Performance
Om Steel supplies premium steel and alloy products to a wide range of industries, ensuring strength, durability, and performance in every application. From construction, oil & gas, and automotive to power plants, shipbuilding, and chemical processing — our materials meet the demands of critical operations. Trusted by industry leaders, we deliver solutions that stand up to the toughest challenges.
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