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At Rajat Steel & Engg. Co. we manufacture and supply high-strength, precision-engineered round bars in Stainless Steel , carbon steel, and alloy steel. Our round bars are built to withstand the toughest industrial demands, offering exceptional durability, dimensional accuracy, and resistance to wear and corrosion. Perfect for heavy-duty machining, construction, and critical engineering applications, they ensure maximum performance and reliability Trusted by leading industries including oil & gas, automotive, and infrastructure, we deliver solutions that drive your success.
Stainless Steel Round Bar is one type of a product made in the stainless steel materials. There are different grades of stainless steels used in various industries. Stainless steel bars are used for their strength and corrosion resistance properties. Navstar Steel is a leading Stainless Steel Round Bar manufacturer in India. All stainless steels contain chromium. The composition can vary and the chromium content varies as well. The more the chromium content, the high the corrosion resistance is.
The bar is also known as the Stainless Steel Rod. The applications of the bars and rods depend on the requirement of the application and the grade of the materials. There are different specifications that specify the production and application types as well. The ASTM A276 Stainless Steel Bar is a specification for hot rolled and cold drawn bars except for forged bars. It can come in different shapes such as round, square, hexagon and other extruded shapes.
| Stainless Steel Bar Length | 2 to 6 meters or 8 to 20 feet |
| SS Rod Chamfering | Available in 30, 45 & 60 degree thru fully automatic both-end chamfering machine |
| Ultrasonic Test of ASTM A276 Threaded Rod | As per ASTM A-388, EN 10308 (class 1 to 4), API 6A/ISO 10423:2003-PSL 3, MIL STD 2154, SEP 1920:1984 100% tested thru Digital Ultrasonic Flaw Detector |
| SS Round Bar Size Tolerances | h11 |
| Tolerance of Cold Rolled SS Round Bar Length | Stock in special cut to length bar in tolerance – 0/+10mm (–0/+0.5 inch) |
| Surface Finish of Cold Rolled SS Bar | Cold drawn or Belt polished condition |
| Bar Heat Treatment | Annealed and Solution Annealed |
| 300 Series SS Grades | SS 303, 304, 304L, 309, 310, 316, 316L, 316H, 317, 317L, 321, 347 |
| 400 Series SS Grades | 410, 410PSQ, 410QDT, 410HT, 416, 416HT, 416PSQ, 420 |
| Type | SIZES in millimeter | SIZES in inches | Tolerance |
|---|---|---|---|
| Peeled and Polished | 40.00 - 150.00 | 1.50 - 6.00 | h11, h11-DIN 1013 |
| Cold Drawn and Polish | 3.00 to 75.00 | 1/8 to 3.00 | h8 to h11 |
| Cold Drawn and Ground | 10.00 to 75.00 | 5/6 to 2.50 | h8 to h11 |
| Peeled and Ground | 20.00 - 50.00 | 3/4 - 2.00 | h9 to h11 |
| Size (mm) | Weight (kg/m) |
|---|---|
| 5.0 | 45.0 |
| 6.0 | 50.0 |
| 7.0 | 55.0 |
| 8.0 | 60.0 |
| 9.0 | 65.0 |
| 10.0 | 70.0 |
| 12.0 | 75.0 |
| 16.0 | 80.0 |
| 20.0 | 90.0 |
| 25.0 | 100.0 |
| 30.0 | 130.0 |
| 35.0 | 160.0 |
| 40.0 | 200.0 |
| ASTM Grade | Carbon | Manganese | Silicon | Sulfur | Phospherous | Chromium | Nickel | Molybdenum | |
| 304 | 0.08 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 18.0-20.0 | 8.0 11.0 | - | - |
| 316 | 0.08 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 16.0-18.0 | 10.0 14.0 | 2.0 3.0 | - |
| 317L | 0.035 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 18.0-20.0 | 11.0 14.0 | 3.0 4.0 | - |
| 310 S | 0.08 max | 2.00 max | 1.5 max | 0.030 max | 0.045 max | 24.0-26.0 | 19.0 22.0 | 3.0 4.0 | - |
| 347 H | 0.04 0.10 | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 17.0- 19.0 | 9.0 13.0 | - | 10C(Cb+Ta)<1.10% |
| 321 | 0.08 | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 17.0-20.0 | 9.0 12.0 | - | 5C 0.70% |
| Grade | Elongation | Density | Tensile Strength | Yield Strength (0.2%Offset) | Melting Point |
| SS 202 | 40 % | 8.0 g/cm3 | 515 MPa | 275 MPa | 1454 °C (2650 °F) |
| SS 303 | 50 % | 55% | Psi – 85,000 | Psi – 45,000 | Rb 180 |
| SS 304 | 40% | 8.0 g/cm3 | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 1400 °C (2550 °F) |
| SS 304L | 40% | 8.0 g/cm3 | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 1400 °C (2550 °F) |
| SS 316 | 35 % | 8.0 g/cm3 | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 1454 °C (2650 °F) |
| SS 316L | 40 % | 8.0 g/cm3 | 485 Min | 170 Min. | 1400 °C (2550 °F) |
| UNS NO | Outokumpu | AISI | Werkstoff NO | ASTM NO |
|---|---|---|---|---|
| S31254 | 254SMO | 904L | 1.4547 | A276 |
| N08904 | 6Mo (Moly) | 1.4539 | A479 | |
| EN10272 | B677 | |||
| F44 |
| Diameter | Weight Chart | Dia | Weight Chart |
|---|---|---|---|
| (mm) | per metre (kg) | (in) | per metre (kg) |
| 3mm | 0.06 | 1/8" | 0.06 |
| 4mm | 0.10 | 3/16" | 0.14 |
| 5mm | 0.16 | 1/4" | 0.25 |
| 6mm | 0.22 | 5/16" | 0.39 |
| 7mm | 0.30 | 3/8" | 0.56 |
| 8mm | 0.40 | 7/16" | 0.77 |
| 10mm | 0.62 | 1/2" | 1.00 |
| 12mm | 0.89 | 9/16" | 1.22 |
| 14mm | 1.22 | 5/8" | 1.56 |
| 15mm | 1.40 | 11/16" | 1.89 |
| 16mm | 1.59 | 3/4" | 2.25 |
| 18mm | 2.01 | 7/8" | 3.07 |
| 20mm | 2.48 | 1" | 4.03 |
| 22mm | 3.00 | ||
| 24mm | 3.57 | ||
| 25mm | 3.88 |
| Diameter or Width (mm) |
Weight per meter | Sectional Area | Perimeter | |||
| Square (kg) |
Round (kg) |
Square (cm²) |
Round (cm²) |
Square (cm) |
Round (cm) |
|
| 5.0 | 0.20 | 0.15 | 0.25 | 0.20 | 2.0 | 1.57 |
| 5.5 | 0.24 | 0.19 | 0.30 | 0.24 | 2.2 | 1.78 |
| 6.0 | 0.28 | 0.22 | 0.36 | 0.28 | 2.4 | 1.88 |
| 7.0 | 0.38 | 0.30 | 0.49 | 0.38 | 2.8 | 2.20 |
| 8.0 | 0.50 | 0.39 | 0.64 | 0.50 | 3.2 | 2.51 |
| 9.0 | 0.64 | 0.50 | 0.81 | 0.64 | 3.6 | 2.83 |
| 10 | 0.73 | 0.63 | 1.00 | 0.79 | 4.0 | 3.14 |
| 11 | 0.95 | 0.75 | 1.21 | 0.95 | 4.4 | 3.46 |
| 12 | 1.13 | 0.89 | 1.44 | 1.13 | 4.8 | 3.77 |
| 14 | 1.54 | 1.21 | 1.96 | 1.54 | 5.6 | 4.40 |
| 16 | 2.01 | 1.58 | 2.56 | 2.01 | 6.4 | 5.03 |
| 18 | 2.54 | 2.00 | 3.24 | 2.54 | 7.2 | 5.65 |
| 20 | 3.14 | 2.47 | 4.00 | 3.14 | 8.0 | 6.28 |
| 22 | 3.80 | 2.98 | 4.84 | 3.80 | 8.8 | 6.91 |
| 25 | 4.91 | 3.85 | 6.25 | 4.91 | 10.0 | 7.85 |
| 28 | 6.15 | 4.83 | 7.84 | 6.16 | 11.2 | 8.80 |
| 32 | 8.04 | 6.31 | 10.24 | 8.04 | 12.8 | 10.05 |
| 36 | 10.17 | 7.99 | 12.96 | 10.18 | 14.4 | 11.31 |
| 40 | 12.56 | 9.86 | 16.00 | 12.57 | 16.0 | 12.57 |
| 45 | 15.90 | 12.49 | 20.25 | 15.90 | 18.0 | 14.14 |
| 50 | 19.62 | 15.41 | 25.00 | 19.64 | 20.0 | 15.71 |
| 56 | 24.62 | 19.34 | 31.36 | 24.63 | 22.4 | 17.59 |
| 63 | 31.16 | 24.47 | 36.69 | 31.17 | 25.2 | 19.79 |
| 71 | 39.57 | 31.08 | 50.41 | 39.59 | 28.4 | 22.31 |
| 80 | 50.24 | 39.46 | 64.00 | 50.27 | 32.0 | 25.13 |
