Stainless Steel 303 Bars are an alloyed form of stainless steel known for its excellent machinability and corrosion resistance properties, comprising mostly of chromium, nickel and sulfur with additional additions for improved machinability, this combination makes these bars suitable for applications across industries with specific emphasis placed on aesthetics or cleanliness being key requirements for success. These bars typically boast smooth surfaces making them an excellent option to meet these specifications in many forms of production environments.
One of the primary features of Stainless Steel 303 Bars is their exceptional machinability. This characteristic stems from their sulfur content, which forms manganese sulfide or selenides inclusions which act as chip breakers during machining to produce smoother cuts with reduced tool wear, increased productivity and smoother cuts than comparable grades such as carbon steel or ferrous metals. As a result, these bars are commonly seen used by industries needing intricate machining processes, including automotive, aerospace and electronics production facilities.
Stainless Steel 303 Hex Bars offer good machinability as well as corrosion resistance properties, due to the high chromium content which provides resistance from oxidation and corrosion even under mildly acidic or corrosive environments. As such they make ideal marine components, food processing equipment, architectural structures.
Stainless Steel 303 Round Bars have outstanding weldability, providing for ease of fabrication and assembly in various construction projects and manufacturing processes. Their strong weldability guarantees strong connections that ensure structural integrity and long term product durability.
Stainless Steel 303 Square Bars find numerous applications across numerous industries due to their versatile properties. Automotive sector applications for these bars include precision machining and corrosion resistance requirements for shafts, gears and fittings production; while food and beverage applications include producing equipment like valves, couplings and fittings in compliance with hygiene and sanitation standards.
These bars are widely utilized for producing fasteners, screws and studs for industrial machinery and equipment that requires reliability and durability. Furthermore, medical practitioners rely heavily on stainless Steel 303 Bars due to their biocompatibility and corrosion resistance when creating surgical instruments and implants for use during surgery or implant placement procedures.
Apple Steels is a notable manufacturer, supplier, and stockist of Stainless Steel 303 Bars in Mumbai, India. We supply and stock these SS 303 Bars in various sizes, specifications, types, and also in customized specifications as per the client's requirements at the most reasonable prices.
Melting and Casting
Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.
Forming
Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.
Heat treatment
Heat treatment strengthens rolled stainless steel by recrystallizing the deformed microstructure. Most stainless steel is heat treated by annealing.
Descaling
A rolled piece of stainless steel acquires a layer of oxidized “mill scale,” which needs to be washed away to restore a shiny surface finish.
Cutting or Machining
Stainless steel is cut to a specified shape and size. The stainless steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.
| SS Bar Wire Standard | ASTM A276 / A479, ASME SA276 / SA479 |
| Stainless Steel Bar Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Stainless Steel Round bar size | Diameter: 3-~800mm |
| Stainless Steel Hex Bar size | 2-100mm A/F |
| SS Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Stainless Steel Square bar size | 4 to 100mm |
| SS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Stainless Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
| SS Bars 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 |
| SS Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Tempers | Tempers range from dead soft annealed to ultra spring temper |
| Rolled Stainless Steel Flat Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Stainless Steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Stainless Steel Rounds Bar Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 303 | 1.4305 | S30300 | SUS 303 | - | - | - | - |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 303 | 0.15 max | 2 max | 1 max | 0.20 max | 0.15 min | 17.0-19.0 | – | 8 – 10 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.285 lb/in3 | - | Psi – 85000 | Psi – 45000 | 50 % |
Electrical Industry
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