Starc Metals, located in Canberra, Australia, stands out as a top-notch manufacturer and supplier of premium stainless steel products, including their well-known Stainless Steel 304L Square Bars and Rods. With a reputation built on precision engineering and rigorous quality control, Starc Metals guarantees that every product meets the highest industry standards. They serve a wide range of sectors, from construction to engineering and fabrication, offering durable, corrosion-resistant, and versatile stainless steel solutions. Committed to customer satisfaction, Starc Metals blends technical know-how, cutting-edge manufacturing techniques, and dependable supply chains to deliver top-quality 304L stainless steel bars and rods throughout Australia.
The Stainless Steel 304L Square Bars and Rods from Starc Metals are primarily made of iron, featuring 18% chromium and 8% nickel, which provides outstanding corrosion resistance and durability. With a low carbon content (≤0.03%), they minimize carbide precipitation during welding, ensuring the structural integrity remains intact. On the mechanical side, 304L stainless steel boasts impressive tensile strength, with yield strength ranging from 170 to 310 MPa, along with excellent ductility that makes machining and forming a breeze. Its hardness typically falls between 70 and 90 HRB, striking a perfect balance between strength and flexibility. These characteristics make 304L an excellent choice for demanding industrial applications while maintaining exceptional resistance to oxidation and chemical exposure.
| SS 304l Square Bar Specification | ASTM A276 / ASTM A479 /ASTM A182 / ASME SA276 / ASME SA479 / ASME SA182 |
| SS 304l Square Bar Manufacturing Process | Hot Rolled / Cold Rolled / Hot Forging / Rolling / Machining |
| SS 304l Square Bar Other Grades | 202 / 304l / 304L / 304H / 309S / 310S / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. UNS No. – UNS S304l00, UNS S304l03, UNS S31008, UNS S31620, UNS S31603, UNS S31603, UNS S31635, UNS S31703, UNS S32100, UNS S34700, UNS S34709, UNS S8904 DIN / EN No. – 1.4301, 1.4307, 1.4845, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4550, 1.4551, 1.4539 AFNOR: Z2 CN 18.10, Z 6 CND 17-11, Z 2 CND 17-12,Z3 CrNi 22.05 AZ EURONORM: FeMi35Cr20Cu4Mo2, FeMi35Cr20Cu4Mo2, X1CrNiMo17 12 2, X3CrNiMo17 12 2, FeMi35Cr20Cu4Mo2, X2CrNiMoN 22.5.3 |
| SS 304l Square Bar Dimension | Square Bars : Outside Diameter in the range of 4mm to 500mm Bright Bars : Outside Diameter in the range of 4mm to 200mm Hex Bars : 18mm to 57mm (11/16″ to 2-3/4″) Square Bars : 18mm to 57mm (11/16″ to 2-3/4″) Flat Bars : 1/2″to 10″in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available |
| SS 304l Square Bar Length | 2 meters to 7.5 meters ( 8 feet to 24 feet), or Custom Length as per Requirement |
| SS 304l Square Bar Forms and Shape | Square, Square, Hex (A/F), Rectangle, Billet, Ingot, HRAP, Bright, Forging Etc. |
| SS 304l Square Bar Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| SS 304l Square Bar Dimension Standard | ASTM A 484 / ISO h11 / ISO K12 Tolerances F8 / h8, h9, h10, h11, h12, k12, k13, A-484, EN-10060, DIN-1013 etc. |
| SS 304l Square Bar Heat Treatment | Condition A in which the bars are Annealed Condition H in which the bars are Hardened and Tempered at a relative Temperature Condition T in which the bars are Hardened and Tempered at a relatively High Temperature Condition S in which the bars are Strain Hardened or relatively Light Cold Worked Condition B in which the bars are Relatively severe Cold worked. Solution Annealed, Aging and Double Aging |
| SS 304l Square Bar Surface Finish | Centreless GSquare & Belt Polished, up to Ra value = 0.2 um (12 RMS), and Grit Polished of up to 180 to 600 |
| SS 304l Square Bar Chamfering | Available in 30°, 45° & 60° through fully automatic, both-end chamfering machine |
| SS 304l Square Bar Other Testing | NACE MR0175, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, Magnetic Particle Inspection (MPI), 100% tested thru Digital Ultrasonic Flaw Detector, as per ASTM A-388, EN 10308 (class 1to4),API 6A/ISO 10423:2003-PSL3,SEP 1920:1984 ( class A,B,C), MIL STD 2154 etc. |
| SS 304l Square Bar Value Added Services | Rolling, Drill, Punch, CNC Machining, Sand Blasting, Shot Blasting, Heat Treatment, Anti-rust Paint, Polishing |
| SS 304l Square Bar Packaging | Loose / Carrate / Wooden Pallet / Wooden Box / Plastic Cloth Wraps |
| S304l Square Bar Shipment & Transportation | By Road – Truck / Train Partial Load, Full Load, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes |
| SS 304l Square Bar 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, Bureau of Indian Standards BIS Approved ETC |
| SS 304l Square Bar Documentation | Commercial Invoice which includes HS Code / Packing List including net weight and gross weight, number of boxes, Marks and Numbers / Certificate of Origin legalized/attested by Chamber of Commerce or Embassy / Fumigation Certificates / Raw Material Test Reports / Material Traceability Records / Quality Assurance Plan (QAP) / Heat Treatment Charts / Test Certificates certifying NACE MR0103, NACE MR0175 / Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2 / Guarantee Letter / NABL approved Laboratory Test Reports / Welding Procedure Specification/Procedure Qualification Record, WPS/PQR / Form A for the purposes of the Generalized System of Preferences (GSP) |
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304L | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304L | 485 | 170 | 40 | 92 | 201 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304l | 1.4301 | S304l00 | SUS 304l | 304lS31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| Grade | Density(kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Yes, Stainless Steel 304L Square Bars are fully recyclable after use. Their high recyclability helps conserve resources and reduces environmental impact.
Yes, Stainless Steel 304L Square Rods are highly corrosion-resistant due to their low carbon content and chromium composition. They perform well in various environments, including mildly corrosive and oxidizing conditions.
Yes, Stainless Steel 304L Square Bars can be used for underground applications due to their excellent corrosion resistance, durability, and strength. Proper protective coatings or wraps are recommended to enhance longevity in harsh soil environments.
Thanks to their durability and corrosion resistance, Stainless Steel 304L Square Bars and Rods are widely utilized across various industries. They play a crucial role in construction frameworks, architectural designs, and handrails, offering both strength and visual appeal. In sectors like chemical processing, food production, and pharmaceuticals, 304L rods and bars help prevent rust and contamination, ensuring safety and hygiene. They’re also essential in automotive, marine, and machinery components, where toughness and reliability are paramount. Plus, their weldability and formability make them perfect for custom fabrication projects, including specialized equipment.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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