Maduka Metals, located in Abuja, Nigeria, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 420 Bars and Rods. We take pride in crafting our products with precision to meet international standards, ensuring they offer outstanding strength, durability, and resistance to corrosion. Our Stainless Steel 420 Bars and Rods are celebrated for their remarkable polishability and impressive hardness, making them perfect for demanding industrial and engineering tasks. We also offer customized sizes and finishes to cater to the unique needs of our clients, delivering dependable performance and exceptional value across various sectors, including manufacturing, construction, and mechanical engineering.
Stainless Steel 420 Bars and Rods are martensitic stainless steels that contain about 12–14% chromium and 0.15% carbon, along with trace amounts of manganese, silicon, and phosphorus. This specific blend gives them excellent hardness, wear resistance, and moderate corrosion resistance. On the mechanical side, SS 420 boasts a tensile strength of around 700–950 MPa and can reach a hardness of up to 50 HRC after heat treatment. It also shows good toughness and machinability, especially in its annealed state, making it suitable for applications that require a balance of strength and resistance to mild corrosive environments.
| Specification | ASTM A276/ A479, ASME SA276/SA479 |
|---|---|
| Grade | Stainless Steel 420 (UNS S42000) |
| Flat bar size | 1/2” to 10” in thickness range of 2mm to 150mm |
| Square bar size | 18mm – 47mm (11/16″ to 1-3/4″) |
| Round bar size | Outside Diameter in the range of 4mm to 500mm |
| Hex Bar size | 18mm – 57mm (11/16″ to 2-3/4″) |
| Bright Bar | Outside Diameter in the range of 4mm to 100mm |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2″ to 495mm Diameter |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Rectangular bar Size | 33 x 30mm to 295 x 1066mm |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Cold Drawn, Bright, Sand Blasting Finished, Hot Rolled Pickled, Hairline, Polished |
| Condition | Hardened & tempered, annealed |
| Technique | 420 Stainless Steel Cold Drawn, Hot Rolled, Forged Round Bar, Rod, Cold Rolled |
| Processing | Bar cutting to 650mm |
| Section | 3.0 to 12.0mm thickness |
| Form | Precision Ground Bar, Flat Bar, Square, Round, Half Round Bar, Rod, Rectangle, Hex (A/F), T-Bar, Channel Bar,Blocks, Round Rod, Threaded, Profiles, Billet, Ingot, I/H Bar, Forging, Rings, Hollow, Triangle etc. |
| Our 420 Stainless Steel Round bar conforms to NACE MR0175/ISO 15156 | |
| Grade | C | Mn | Si | P | S | Cr | |
| 420 | min. | – | – | – | – | – | 12.0 |
| max. | 0.15 | 1.0 | 1.00 | 0.04 | 0.03 | 14.0 | |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| 420 | 95,000 | 25 | 50,000 | 175 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 420 | 1.4021 | S42000 | SUS 420 J1 | 420S29 | – | – | FeMi35Cr20Cu4Mo2 |
Stainless Steel 420 Bars and Rods are known for their excellent hardness, corrosion resistance, and wear resistance. They are a high-carbon steel that can be heat-treated for maximum hardness and are ideal for applications that require strength and durability, such as cutlery, surgical instruments, and valve parts.
Stainless Steel 420 has higher carbon content compared to other grades like 304 or 316, which allows it to be hardened through heat treatment. This makes it particularly suitable for applications that demand high strength, hardness, and wear resistance, although it may not offer the same corrosion resistance as other austenitic grades.
These Stainless Steel 420 Bars and Rods find their way into various industries that demand components with superior hardness and wear resistance. You’ll commonly see them in cutlery, surgical instruments, valves, pump shafts, fasteners, and molds. In the automotive industry, they’re used to create precision parts like gears and bearings. Their high polishability and corrosion resistance also make them a great choice for decorative and engineering applications. Plus, SS 420 Bars and Rods are essential in the chemical and food processing sectors, where strength and moderate corrosion resistance are crucial for long-lasting performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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