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Home > Stainless Steel >Stainless Steel 420 Pipes
Laila Pipes and Tubes is a reputable manufacturer and supplier of top-notch Stainless Steel 420 Pipes based in Muscat, Oman. They specialize in precision-engineered pipes that adhere to international standards, making them perfect for applications that demand high strength, hardness, and durability. With state-of-the-art manufacturing facilities, rigorous quality control measures, and a skilled technical team, Laila Pipes and Tubes caters to various industries, including oil and gas, automotive, chemical processing, power generation, and general engineering. Their commitment to consistent quality, timely delivery, and customer-centric service has helped them build a solid reputation in both regional and global markets.
Stainless Steel 420 Pipes consist mainly of 12–14% chromium with increased carbon content, making the material amenable for heat treatment to achieve high hardness and strength. The pipes are martensitic in nature and provide tensile strength of between 650–850 MPa and yield strength of around 345 MPa. The mechanical properties of these pipes are outstanding wear resistance, good ductility following tempering, and fair corrosion resistance. While less corrosion-resistant than austenitic grades, 420 excels in conditions where hardness, strength, and surface resistance are critical, particularly after tempering and heat treatment.
| Specifications | ASTM A312, A358 / ASME SA312, SA358 |
|---|---|
| Dimensional Specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Seamless Pipe Size | 1 / 8″ NB – 24″ NB |
| Welded Pipe Size | 1 / 8″ NB – 24″ NB |
| EFW Pipe Size | 6″ NB – 48″ NB |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Manufacturing Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
| Manufacturing Techniques | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | CU | |
| 420 | Min | – | – | – | – | – | 12.0 | – | – | – |
| max | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 14.0 | – | – | – |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 420 | 95,000 | 50,000 | 25 | – | 175 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 420 pipes are made from martensitic stainless steel, featuring around 12–14% chromium and a higher carbon content than other stainless grades. This unique composition allows for heat treatment, enhancing their hardness, strength, and wear resistance while still providing moderate corrosion resistance. These pipes are known for their good machinability, dimensional stability, and toughness, making them ideal for demanding mechanical applications.
Laila Pipes and Tubes, one of the largest suppliers of Stainless Steel 420 Pipes in Muscat, OMAN, 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.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | EN |
|---|---|---|---|---|---|
| SS 420 | 1.4021 | S42000 | SUS 420J1 | 420S29 | X20Cr13 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 420 | 7900 | 300 | 11.5 | 11.8 | 11.9 | 25.9 | – | 480 | 570 |
You’ll find Stainless Steel 420 pipes in a variety of applications that require high hardness, strength, and moderate corrosion resistance. They’re commonly used in shafts, valve components, fasteners, pump parts, and automotive components. Additionally, industrial machinery, chemical equipment, and tooling applications rely on Stainless Steel 420 pipes for their durability, wear resistance, and dependable mechanical performance.
420 Stainless Steel Pipes are widely applied in uses requiring high strength, hardness, and wear resistance. They find extensive application in cutlery, surgical equipment, shafts, pump components, valves, and car parts. They are also utilized in industrial machinery and tooling operating in abrasive or high-friction environments. The fact that they can be heat-treated also makes them ideal for mechanical and structural applications where durability as well as precision is an essential requirement. Stainless Steel 420 Pipes are a viable option for manufacturing, automotive, and engineering industries where stress performance is an important prerequisite.
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