Garg Steels, a prominent manufacturer and supplier based in Chennai, India, specializes in high-quality Stainless Steel 420 Bars designed for tough applications that demand exceptional hardness, wear resistance, and a polished finish. This high-carbon martensitic stainless steel is celebrated for its impressive mechanical strength and decent corrosion resistance after heat treatment. At Garg Steels, every bar is crafted with precision and a commitment to international standards, ensuring they are durable and dimensionally accurate. These bars find their place in various industries, including toolmaking, medical instruments, automotive parts, and industrial equipment, where top-notch materials are essential for success.
Stainless Steel 420 Bars generally consist of 12–14% chromium and 0.15–0.40% carbon, along with trace amounts of manganese, silicon, phosphorus, and sulfur. As a martensitic stainless steel, 420 boasts high tensile strength (700–950 MPa), remarkable hardness (up to 50–56 HRC after heat treatment), and moderate corrosion resistance in less aggressive environments. It remains magnetic in both annealed and hardened states and offers good polishability and fair machinability. This material excels under mechanical wear, making it perfect for components that experience friction, stress, and routine cleaning or sterilization.
| 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 are extensively utilized in applications that require high hardness, wear resistance, and a smooth surface finish. In the tool and die sector, they are perfect for crafting blades, molds, cutters, and surgical instruments. The medical field relies on 420 for tools that need strength and the ability to withstand repeated sterilization. In the automotive realm, it’s used for valve components, shafts, and fasteners. Manufacturers of industrial machinery and kitchenware appreciate 420 bars for items like knives, rollers, and hardware. Their capacity to achieve a mirror-like polish also makes them ideal for decorative applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Garg Steels is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Chennai, India
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