Nakamura Stainless is a reputable manufacturer and supplier based in Pulau Ujong, Singapore, known for delivering top-notch stainless steel products tailored for both industrial and commercial needs. One of their standout offerings, Stainless Steel 420 Pipes, is highly regarded for its impressive hardness, strength, and decent resistance to corrosion. This high-carbon martensitic stainless steel grade is crafted to ensure reliable performance in settings that demand wear resistance and mechanical durability. Adhering to strict international standards, Nakamura Stainless guarantees that their Stainless Steel 420 Pipes offer long-lasting, precise, and trustworthy solutions for piping systems across various industrial sectors.
These pipes are made from martensitic stainless steel containing 12–14% chromium and 0.15–0.40% carbon, which enables them to achieve remarkable hardness and tensile strength after undergoing heat treatment. The alloy is known for its good wear resistance, toughness, and dimensional stability, making it ideal for applications that involve mechanical stress and moderate corrosion. Thanks to its martensitic structure, it provides strength and resists deformation even under high-pressure and high-temperature conditions.
| Item | Stainless Steel 420 Pipe |
| Standard | GB, AISI, ASTM, ASME, EN, BS, DIN, JIS |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Outer Diameter Size | SEAMLESS – 1/2″ NB TO 18″ NB WELDED / ERW- 1″ NB TO 16″ NB EFW – 8″ NB TO 110″ NB |
| Form | Round Pipes, Square Pipes, Rectangular Pipe, “U” Shape Pipes, Hydraulic Pipes |
| Wall Thickness | Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness) |
| Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size End: Plain End, Beveled End, Treaded |
| Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
| Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
| Fe | C | Mn | Si | Cr | Ni* | Mo* | P | S | Cu* | Al* | Sn* |
|---|---|---|---|---|---|---|---|---|---|---|---|
Balance | 0.15-0.40% | 1.00% max | 1.00% max | 12.00-14% | 0.50% max | 0.50% max | 0.04% max | 0.03% max | 0.50% max | 0.15% max | 0.05% max |
| Property | Metric |
|---|---|
Density | 7.74 g/cm3 |
Elastic Modulus | 200 GPa |
Electrical Resistivity | 0.55 x 10-7 .m |
Tensile Strength | 655 MPa |
Yield strength (Temper: Annealed) Minimum 0.2% offset | 40,000 psi |
Yield Strength (Temper: Hardened + 350°F) Typical 2% offset | 195,000 psi |
Elongation (% in 50 mm) | 25 |
Brinell Hardness (HB) | 241 max |
Contact us to get a quick quote for your requirement.
We ensures the highest quality of stainless steel 420 pipes through rigorous testing procedures, including chemical composition analysis, mechanical property testing and surface quality testing Every pipe is certified with industry standards, assuring durability, strength and corrosion resistance to a variety of industrial applications
Stainless Steel 420 ERW (Electric Resistance Welded) pipes are welded from stainless steel strips, offering high hardness and wear resistance, ideal for cutlery, surgical instruments, and high-strength applications.
Stainless Steel 420 EFW (Electric Fusion Welded) pipes are made by fusing stainless steel plates, providing high-strength, wear-resistant pipes suitable for industrial tools and components requiring durability and hardness.
Stainless Steel 420 LSAW (Longitudinally Submerged Arc Welded) pipes are produced using submerged arc welding, offering strength and hardness for large-diameter applications, including industrial and high-stress environments.
Stainless Steel 420 Seamless pipes are manufactured without welding, providing uniform strength and high hardness, ideal for cutlery, surgical tools, and applications requiring excellent wear resistance and durability.
Stainless Steel 420 Welded pipes are made by welding stainless steel sections, offering high hardness and wear resistance, suitable for industrial applications, cutlery, and tools requiring enhanced durability.
Stainless Steel 420 Square pipes feature a square cross-section, providing structural support and high hardness, ideal for use in applications requiring durability, wear resistance, and a unique design.
Stainless Steel 420 Pipes find extensive use in industries that require robust, wear-resistant, and corrosion-resistant piping solutions. They are commonly utilized in chemical processing, food processing equipment, automotive components, and industrial machinery. Moreover, they are well-suited for pumps, valves, and tooling systems where mechanical strength and moderate corrosion resistance are crucial. With their blend of hardness, durability, and reliability, Stainless Steel 420 Pipes deliver efficient and long-lasting performance in demanding industrial and engineering applications.
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