Njabulo Stainless, based in Cape Town, South Africa, is a trusted manufacturer and supplier of Stainless Steel 420 Pipes. These pipes are made from martensitic stainless steel 420, known for its high hardness, wear resistance, and corrosion resistance. Njabulo Stainless ensures precise dimensions, smooth surfaces, and consistent quality for reliable industrial and structural applications. Stainless Steel 420 pipes are widely used in chemical, petrochemical, automotive, marine, and industrial equipment industries, where durability and strength are critical. They offer long-lasting performance for high-pressure, high-stress, and wear-prone applications.
Stainless Steel 420 Pipes are made from martensitic stainless steel 420, containing high carbon (0.15–0.40%) and chromium (12–14%). This composition provides excellent hardness, wear resistance, and moderate corrosion resistance. Mechanically, 420 pipes offer high tensile strength, toughness, and dimensional stability, making them suitable for high-pressure and high-stress applications. The martensitic structure allows for hardening through heat treatment, improving durability and wear resistance. Precision manufacturing ensures smooth surfaces and consistent wall thickness, making these pipes ideal for industrial, mechanical, and structural applications requiring strength and reliability.
| 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 are widely used in chemical plants, petrochemical industries, automotive components, marine environments, and industrial equipment. They are ideal for transporting liquids, gases, and chemicals under high pressure. Their hardness and wear resistance make them suitable for pump casings, valve bodies, shafts, and structural applications exposed to mechanical stress. In manufacturing, 420 pipes are used for precision machinery, tools, and industrial piping systems, providing reliable and long-lasting performance. Overall, these pipes deliver strength, durability, and corrosion resistance, making them suitable for demanding industrial, mechanical, and structural applications.
©2024 Njabulo Stainless All Rights Reserved.
