Mitchell Stainless is a reliable manufacturer and supplier of Stainless Steel 420 pipes based in Hamilton, New Zealand. We pride ourselves on delivering top-notch solutions to a variety of industrial sectors. With our state-of-the-art manufacturing facilities, rigorous quality control, and a talented workforce, we ensure that our pipes not only meet international standards but also cater to specific customer needs. Our Stainless Steel 420 pipes are recognized for their impressive strength, hardness, and decent corrosion resistance. We emphasize precision, durability, and timely delivery, making us a go-to partner for engineering, construction, and industrial projects both in New Zealand and around the globe.
Stainless Steel 420 is a martensitic stainless steel that mainly consists of chromium (12–14%) and carbon, along with trace amounts of manganese, silicon, and iron. This unique blend offers good corrosion resistance and high hardness after heat treatment. Our Stainless Steel 420 pipes showcase excellent tensile strength, wear resistance, and good machinability when in the annealed state. Once hardened and tempered, they provide outstanding mechanical strength, making them ideal for applications that demand durability, pressure resistance, and a long service life even in tough 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.
The Stainless Steel 420 pipes produced and supplied by Mitchell Stainless find extensive use in scenarios where strength and moderate corrosion resistance are crucial. You’ll commonly see them in oil and gas components, chemical processing equipment, heat exchangers, food processing machinery, and industrial piping systems. They’re also perfect for automotive parts, power generation units, and structural applications that face mechanical stress.
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