Stainless Steel Bars & Rods
Our Products
Our Brochure
Stainless Steel Bars & Rods Brochure
Download
Descriptions
At Navkar Metal Syndicate, we manufacture, stock, and supply a comprehensive range of Stainless Steel Bars and Rods designed for precision, durability, and corrosion resistance. Our product portfolio includes Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Bright Bars, and Black Bars available in both standard and customized specifications.
Manufactured using premium quality stainless steel, our bars and rods meet the requirements of ASTM A276 / A479 / A484 and equivalent international standards. These products are available in a wide range of grades such as J4, J7, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 409L, 410, 410S, 420, 429, 430, 430Ti, 439, 441, 444, and S31803 (Duplex 2205).
Each bar and rod is produced under strict quality control, ensuring superior mechanical strength, dimensional accuracy, and smooth surface finish. Whether for construction, marine, chemical, food processing, automotive, or engineering industries, our stainless steel bars and rods deliver consistent performance under the most demanding environments.
- Forms Available: Round, Square, Hexagonal, Flat, Angle, Bright, and Black Bars
- Size Range: 3 mm to 800 mm diameter (Round) | Custom lengths up to 6 meters or more
- Finishes: Hot Rolled (HR), Cold Drawn (CD), Peeled, Polished, Bright Finish
- Standards: ASTM A276 / A479 / A484, ASME SA276 / SA479, EN 10088, DIN, JIS, IS
- Applications: Machined components, shafts, fasteners, valves, pumps, structural frameworks, and decorative fabrications
With extensive inventory, export-grade packaging, and precision processing capabilities, Navkar Metal Syndicate ensures timely delivery of stainless steel bars and rods for both domestic and international projects.
Chemical Composition
The following table lists the nominal chemical composition (% by weight) of commonly used stainless steel grades for bars and rods, including Austenitic, Ferritic, Martensitic, and Duplex families. These values are typical ranges defined by ASTM and equivalent international standards.
| Grade | C (max) | Mn (max) | P (max) | S (max) | Si (max) | Cr (%) | Ni (%) | Mo (%) | Other Elements |
|---|---|---|---|---|---|---|---|---|---|
| J7 | 0.10 | 8.50–10.00 | 0.09 | 0.03 | 0.75 | 15.00–16.00 | 0.25–0.50 | — | — |
| J4 | 0.10 | 8.50–10.00 | 0.09 | 0.03 | 0.75 | 15.00–16.00 | 0.80–1.20 | — | — |
| 201 | 0.15 | 5.50–7.50 | 0.06 | 0.03 | 1.00 | 16.00–18.00 | 3.50–5.50 | — | N ≤ 0.25 |
| 202 | 0.15 | 7.50–10.00 | 0.06 | 0.03 | 1.00 | 17.00–19.00 | 4.00–6.00 | — | N ≤ 0.25 |
| 301 | 0.15 | 2.00 | 0.045 | 0.03 | 1.00 | 16.00–18.00 | 6.00–8.00 | — | — |
| 302 | 0.15 | 2.00 | 0.045 | 0.03 | 1.00 | 17.00–19.00 | 8.00–10.00 | — | — |
| 304 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 8.00–11.00 | — | — |
| 304L | 0.035 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 8.00–13.00 | — | — |
| 304H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 8.00–11.00 | — | — |
| 305 | 0.12 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 10.50–13.00 | — | — |
| 308 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 19.00–21.00 | 10.00–12.00 | — | — |
| 309 | 0.20 | 2.00 | 0.045 | 0.03 | 1.00 | 22.00–24.00 | 12.00–15.00 | — | — |
| 309S | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 22.00–24.00 | 12.00–15.00 | — | — |
| 310 | 0.25 | 2.00 | 0.045 | 0.03 | 1.50 | 24.00–26.00 | 19.00–22.00 | — | — |
| 310S | 0.08 | 2.00 | 0.045 | 0.03 | 1.50 | 24.00–26.00 | 19.00–22.00 | — | — |
| 316 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 16.00–18.00 | 11.00–14.00 | 2.00–3.00 | — |
| 316L | 0.035 | 2.00 | 0.045 | 0.03 | 0.75 | 16.00–18.00 | 10.00–15.00 | 2.00–3.00 | — |
| 316H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 16.00–18.00 | 11.00–14.00 | 2.00–3.00 | — |
| 316Ti | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.00–18.00 | 10.00–14.00 | 2.00–2.50 | Ti ≥ 5×C min |
| 317 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 11.00–14.00 | 3.00–4.00 | — |
| 317L | 0.035 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 11.00–15.00 | 3.00–4.00 | — |
| 321 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | — | Ti ≥ 5×C% |
| 321H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | — | Ti ≥ 5×C% |
| 347 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | — | (Nb+Ta) ≥ 10×C% |
| 347H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | — | (Nb+Ta) ≥ 10×C% |
| 409L | 0.03 | 1.00 | 0.04 | 0.02 | 1.00 | 10.50–11.70 | 0.05 | — | Ti ≥ 6×(C+N) |
| 410 | 0.15 | 1.00 | 0.04 | 0.03 | 1.00 | 11.50–13.50 | 0.75 | — | — |
| 410S | 0.08 | 1.00 | 0.04 | 0.03 | 1.00 | 11.50–13.50 | 0.60 | — | — |
| 420 | 0.15 min | 1.00 | 0.045 | 0.03 | 1.00 | 10.50–15.50 | 1.00–2.50 | — | Mo 0.20–1.20 |
| 429 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 14.00–16.00 | — | — | — |
| 430 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 16.00–18.00 | 0.75 | — | — |
| 430Ti | 0.12 | 1.25 | 0.06 | 0.15 | 1.00 | 16.00–18.00 | — | — | Ti ≤ 0.75 |
| 439 | 0.03 | 1.00 | 0.04 | 0.03 | 1.00 | 17.00–19.00 | 0.50 | — | Ti ≥ [0.20+4(C+N)], Al ≤ 0.15 |
| 441 | 0.03 | 1.00 | 0.04 | 0.03 | 1.00 | 17.50–19.50 | 1.00 | 1.75–2.50 | Ti 0.10–0.50 |
| 444 | 0.025 | 1.00 | 0.04 | 0.03 | 1.00 | 17.50–19.50 | 1.00 | 1.75–2.50 | (Ti+Nb) ≥ 0.20+4(C+N) |
| S31803 (Duplex 2205) | 0.025 | 1.00 | 0.04 | 0.03 | 1.00 | 21.00–23.00 | 4.50–6.50 | 2.50–3.50 | N 0.08–0.20 |
Note: Actual composition may vary slightly depending on manufacturing process, melt practice, and product form. All compositions conform to relevant ASTM, ASME, EN, and DIN specifications.
Mechanical, Physical & Fabrication Properties
The following table outlines the typical mechanical and physical properties of major stainless steel grades used in bars and rods. These values represent standard annealed or solution-annealed conditions per ASTM and equivalent international specifications.
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HB) | Density (g/cm³) | Melting Point (°C) |
|---|---|---|---|---|---|
| J7 | 515 | 275 | 160 | 7.75 | 1400–1450 |
| J4 | 520 | 275 | 160 | 7.75 | 1400–1450 |
| 201 | 515–750 | 275 | 150 | 7.80 | 1400–1450 |
| 202 | 515–750 | 275 | 150 | 7.80 | 1400–1450 |
| 301 | 620–950 | 290 | 160 | 7.93 | 1398–1421 |
| 302 | 620–860 | 240 | 150 | 7.93 | 1398–1421 |
| 304 | 515–750 | 205 | 150 | 7.93 | 1400–1450 |
| 304L | 485 | 170 | 150 | 7.93 | 1400–1450 |
| 304H | 515–750 | 205 | 160 | 7.93 | 1400–1450 |
| 305 | 515 | 205 | 150 | 7.93 | 1400–1450 |
| 308 | 620 | 240 | 160 | 7.90 | 1390–1450 |
| 309 | 620 | 240 | 160 | 7.90 | 1390–1450 |
| 309S | 620 | 240 | 160 | 7.90 | 1390–1450 |
| 310 | 620–860 | 240 | 160 | 7.90 | 1398–1420 |
| 310S | 515–760 | 205 | 160 | 7.90 | 1398–1420 |
| 316 | 515–760 | 205 | 150 | 8.00 | 1370–1400 |
| 316L | 485 | 170 | 150 | 8.00 | 1370–1400 |
| 316H | 515–760 | 205 | 160 | 8.00 | 1370–1400 |
| 316Ti | 515–760 | 205 | 160 | 8.00 | 1370–1400 |
| 317 | 515–760 | 205 | 160 | 8.00 | 1370–1395 |
| 317L | 485 | 170 | 150 | 8.00 | 1370–1395 |
| 321 | 515–750 | 205 | 160 | 7.92 | 1400–1450 |
| 321H | 515–750 | 205 | 160 | 7.92 | 1400–1450 |
| 347 | 515–750 | 205 | 160 | 7.93 | 1400–1450 |
| 347H | 515–750 | 205 | 160 | 7.93 | 1400–1450 |
| 409L | 380–550 | 170–240 | 170 | 7.75 | 1450–1510 |
| 410 | 450–650 | 205–450 | 200 | 7.75 | 1480–1530 |
| 410S | 415–585 | 205 | 170 | 7.75 | 1480–1530 |
| 420 | 700–950 | 345–550 | 250 | 7.75 | 1450–1510 |
| 429 | 450–600 | 280 | 180 | 7.75 | 1450–1510 |
| 430 | 450–600 | 205 | 180 | 7.75 | 1450–1510 |
| 430Ti | 450–600 | 230 | 180 | 7.75 | 1450–1510 |
| 439 | 415–585 | 205 | 180 | 7.75 | 1450–1510 |
| 441 | 415–620 | 220 | 180 | 7.75 | 1450–1510 |
| 444 | 485–700 | 275 | 190 | 7.75 | 1450–1510 |
| S31803 (Duplex 2205) | 620–880 | 450–620 | 250 | 7.80 | 1350–1450 |
Note: Mechanical properties are typical for annealed or solution-treated material. Actual values may vary depending on processing condition, heat treatment, and product form. Duplex grades show higher yield strength due to ferrite–austenite microstructure balance.
Applications
Stainless Steel Bars and Rods are essential components in numerous industries thanks to their excellent corrosion resistance, strength, and versatility. Depending on the grade, these bars are used in applications ranging from decorative structures to high-temperature industrial equipment.
Architectural & Structural Applications
- Building frameworks, handrails, and balustrades
- Interior and exterior decorative panels
- Elevator and escalator components
- Structural reinforcements and supports
- Facades and canopy structures
- Grades Used: J4, J7, 201, 202, 304, 316, 430
Engineering & Machining Applications
- Machined shafts, fasteners, bolts, nuts, and valves
- Gear components, pump shafts, and machine parts
- Precision-turned components and studs
- Bearings, bushings, and flanges
- Grades Used: 303, 304, 304L, 316, 316L, 321, 347, 410, 420
Marine & Offshore Industry
- Boat shafts, propeller rods, and fittings
- Offshore oil and gas components
- Marine fasteners and deck fittings
- Shipbuilding structural reinforcements
- Grades Used: 316, 316L, 317L, 2205 (S31803 Duplex)
Chemical & Process Industry
- Heat exchangers, evaporators, and process tanks
- Reactors and pressure vessels
- Pumps, agitators, and valve stems
- Chemical plant piping and support structures
- Grades Used: 304, 316, 316L, 316Ti, 317, 317L, 321, 347, 2205 Duplex
High Temperature & Heat-Resistant Applications
- Furnace components, burners, and heat shields
- Boiler parts and superheater tubes
- Thermal processing equipment
- Grades Used: 309, 309S, 310, 310S, 321H, 347H
Automotive & Transport Applications
- Exhaust systems, mufflers, and catalytic converters
- Decorative trims and chassis components
- Axles, engine shafts, and brackets
- Rail coach fittings and structures
- Grades Used: 409L, 410, 430, 441, 444
Food, Beverage & Dairy Industry
- Processing machinery and dairy equipment
- Mixers, conveyors, and handling systems
- Brewing and bottling machinery
- Grades Used: 304, 304L, 316, 316L
Pharmaceutical & Medical Equipment
- Hygienic-grade tanks and conveyors
- Medical tools, surgical parts, and implants
- Cleanroom fabrication and assembly structures
- Grades Used: 304L, 316L, 317L, 321
Power & Energy Sector
- Turbine shafts, generator parts, and pump shafts
- Nuclear and thermal plant assemblies
- Flanges, fasteners, and supports
- Grades Used: 304H, 321H, 347H, 310S, 316Ti, S31803
General Fabrication & Household Uses
- Kitchen sinks, furniture, and appliances
- Decorative grills, railing, and art installations
- Sanitary ware and hardware fittings
- Grades Used: J4, J7, 201, 202, 430, 439
Note: Selection of stainless steel grade depends on the intended service condition, temperature, corrosion environment, and required mechanical properties. Navkar Metal Syndicate provides customized bars and rods for both domestic and export applications across industries.
Standards & International Equivalents:
Stainless Steel Bars and Rods are produced according to globally recognized specifications ensuring quality, consistency, and performance. The following table lists the corresponding standards and international equivalents for each grade across major specifications such as ASTM, EN, JIS, IS, and DIN.
| Grade | ASTM / ASME | EN (W.Nr.) | JIS | IS | DIN |
|---|---|---|---|---|---|
| J7 | Equivalent to ASTM A276 | – | – | IS 6911 | – |
| J4 | Equivalent to ASTM A276 | – | – | IS 6911 | – |
| 201 | A276 / A240 / A666 | 1.4372 / X12CrMnNiN17-7-5 | SUS201 | IS 6911 201 | DIN 17440 |
| 202 | A276 / A240 / A666 | 1.4373 / X12CrMnNiN18-9-5 | SUS202 | IS 6911 202 | DIN 17440 |
| 301 | A276 / A240 | 1.4310 / X10CrNi18-8 | SUS301 | IS 6911 301 | DIN 17440 |
| 302 | A276 / A240 | 1.4319 / X12CrNi18-9 | SUS302 | IS 6911 302 | DIN 17440 |
| 304 | A276 / A240 | 1.4301 / X5CrNi18-10 | SUS304 | IS 6911 304 | DIN 17440 |
| 304L | A276 / A240 | 1.4307 / X2CrNi18-9 | SUS304L | IS 6911 304L | DIN 17440 |
| 304H | A276 / A240 | 1.4948 / X6CrNi18-10 | SUS304H | IS 1570 | DIN 17440 |
| 305 | A276 / A240 | 1.4303 / X4CrNi18-12 | SUS305 | IS 6911 305 | DIN 17440 |
| 308 | A276 / A240 | 1.4303 | SUS308 | IS 1570 | DIN 17440 |
| 309 | A276 / A240 | 1.4828 / X15CrNiSi20-12 | SUS309 | IS 1570 | DIN 17440 |
| 309S | A276 / A240 | 1.4833 | SUS309S | IS 1570 | DIN 17440 |
| 310 | A276 / A240 | 1.4841 / X15CrNi25-20 | SUS310 | IS 1570 | DIN 17440 |
| 310S | A276 / A240 | 1.4845 / X8CrNi25-21 | SUS310S | IS 1570 | DIN 17440 |
| 316 | A276 / A240 | 1.4401 / X5CrNiMo17-12-2 | SUS316 | IS 6911 316 | DIN 17440 |
| 316L | A276 / A240 | 1.4404 / X2CrNiMo17-12-2 | SUS316L | IS 6911 316L | DIN 17440 |
| 316H | A276 / A240 | 1.4919 / X5CrNiMo17-12-2 | SUS316H | IS 1570 | DIN 17440 |
| 316Ti | A276 / A240 | 1.4571 / X6CrNiMoTi17-12-2 | SUS316Ti | IS 6911 | DIN 17440 |
| 317 | A276 / A240 | 1.4449 / X2CrNiMo18-15-4 | SUS317 | IS 6911 | DIN 17440 |
| 317L | A276 / A240 | 1.4438 / X2CrNiMo18-15-4 | SUS317L | IS 6911 | DIN 17440 |
| 321 | A276 / A240 | 1.4541 / X6CrNiTi18-10 | SUS321 | IS 6911 321 | DIN 17440 |
| 321H | A276 / A240 | 1.4878 / X10CrNiTi18-9 | SUS321H | IS 1570 | DIN 17440 |
| 347 | A276 / A240 | 1.4550 / X6CrNiNb18-10 | SUS347 | IS 1570 | DIN 17440 |
| 347H | A276 / A240 | 1.4961 / X10CrNiNb18-9 | SUS347H | IS 1570 | DIN 17440 |
| 409L | A240 / A268 / A276 | 1.4512 / X2CrTi12 | SUS409L | IS 1570 409L | DIN 17440 |
| 410 | A276 / A240 | 1.4006 / X12Cr13 | SUS410 | IS 1570 410 | DIN 17440 |
| 410S | A240 / A276 | 1.4000 / X6Cr13 | SUS410S | IS 1570 410S | DIN 17440 |
| 420 | A276 / A240 | 1.4021 / X20Cr13 | SUS420J1/J2 | IS 1570 420 | DIN 17440 |
| 429 | A240 / A268 | 1.4003 / X2CrTi12 | SUS429 | IS 1570 | DIN 17440 |
| 430 | A276 / A240 | 1.4016 / X6Cr17 | SUS430 | IS 6911 430 | DIN 17440 |
| 430Ti | A240 / A268 | 1.4510 / X6CrTi17 | SUS430Ti | IS 1570 | DIN 17440 |
| 439 | A240 / A268 | 1.4510 / X3CrTi17 | SUS439 | IS 1570 | DIN 17440 |
| 441 | A240 / A268 | 1.4509 / X2CrTiNb18 | SUS441 | IS 1570 | DIN 17440 |
| 444 | A240 / A268 | 1.4521 / X2CrMoTi18-2 | SUS444 | IS 1570 | DIN 17440 |
| S31803 (Duplex 2205) | A276 / A240 / A479 | 1.4462 / X2CrNiMoN22-5-3 | SUS329J3L | IS 6911 Duplex | DIN 17457 / 17458 |
Note: The above equivalents are indicative and may vary slightly between product forms or manufacturing standards. All stainless steel bars and rods supplied by Navkar Metal Syndicate conform to ASTM A276 / A479 and equivalent EN or JIS specifications upon request.
Common Names & International Identifiers
Stainless Steel Bars and Rods are known under different naming systems such as AISI, UNS, Werkstoff (W.Nr.), and common trade names. The following table lists the widely recognized identifiers and aliases for major stainless steel grades supplied by Navkar Metal Syndicate.
| Grade | AISI / SAE | UNS Number | Werkstoff Nr. (WNR) | Common / Trade Names |
|---|---|---|---|---|
| J7 | – | – | – | Low Nickel Stainless / Utility Grade |
| J4 | – | – | – | Low Nickel Stainless (Jindal Grade J4) |
| 201 | 201 | S20100 | 1.4372 | Chromium–Nickel–Manganese Steel |
| 202 | 202 | S20200 | 1.4373 | Austenitic Manganese Steel |
| 301 | 301 | S30100 | 1.4310 | High Strength Austenitic Stainless |
| 302 | 302 | S30200 | 1.4319 | Austenitic Stainless Steel (18/8 Type) |
| 304 | 304 | S30400 | 1.4301 | 18/8 Stainless Steel |
| 304L | 304L | S30403 | 1.4307 | Low Carbon 304 / AISI 304L |
| 304H | 304H | S30409 | 1.4948 | High Carbon 304 / Heat Resistant 304 |
| 305 | 305 | S30500 | 1.4303 | High Nickel 18-12 Stainless |
| 308 | 308 | S30800 | 1.4303 | Welding Grade 18Cr-10Ni |
| 309 | 309 | S30900 | 1.4828 | Heat Resistant 309 / 309 Stainless |
| 309S | 309S | S30908 | 1.4833 | Low Carbon 309S Stainless |
| 310 | 310 | S31000 | 1.4841 | Heat Resistant 25Cr-20Ni Steel |
| 310S | 310S | S31008 | 1.4845 | Low Carbon 310S Stainless |
| 316 | 316 | S31600 | 1.4401 | Marine Grade / 18-10-2 Stainless |
| 316L | 316L | S31603 | 1.4404 | Low Carbon Marine Grade |
| 316H | 316H | S31609 | 1.4919 | High Carbon Heat-Resistant 316 |
| 316Ti | 316Ti | S31635 | 1.4571 | Stabilized 316 with Titanium |
| 317 | 317 | S31700 | 1.4449 | High Mo Stainless (Acid Resistant) |
| 317L | 317L | S31703 | 1.4438 | Low Carbon 317 Stainless |
| 321 | 321 | S32100 | 1.4541 | Stabilized 304 with Titanium |
| 321H | 321H | S32109 | 1.4878 | High Temperature 321 Grade |
| 347 | 347 | S34700 | 1.4550 | Nb-Stabilized 304 Equivalent |
| 347H | 347H | S34709 | 1.4961 | High Temp 347 Stainless |
| 409L | 409L | S40900 | 1.4512 | Ferritic Stainless for Auto Exhaust |
| 410 | 410 | S41000 | 1.4006 | Martensitic Stainless / 12Cr |
| 410S | 410S | S41008 | 1.4000 | Low Carbon 410 Stainless |
| 420 | 420 | S42000 | 1.4021 | Cutlery Grade Stainless Steel |
| 429 | 429 | S42900 | 1.4003 | Ferritic Stainless (Ti Stabilized) |
| 430 | 430 | S43000 | 1.4016 | Basic Ferritic Stainless / 16Cr |
| 430Ti | 430Ti | S43036 | 1.4510 | Stabilized 430 (Ti Added) |
| 439 | 439 | S43035 | 1.4510 | Ferritic Stainless with Ti & Nb |
| 441 | 441 | S44100 | 1.4509 | Dual Stabilized Ferritic Grade |
| 444 | 444 | S44400 | 1.4521 | High Mo Ferritic / Marine Resistant |
| S31803 (Duplex 2205) | 2205 | S31803 / S32205 | 1.4462 | Duplex Stainless Steel / SAF 2205 |
Note: These identifiers are provided for cross-reference purposes. Navkar Metal Syndicate supplies stainless steel bars and rods compliant with ASTM, ASME, EN, and JIS standards, offering full traceability and Mill Test Certification (MTC) for every grade and form.
Common Product Forms & Dimensions
Theoretical weights are based on density and bar diameter. Values below use austenitic (e.g., 304/316) as the baseline; grade-wise variations are applied via density correction factors. Tolerances vary by standard (ASTM/EN/JIS) and heat/finish.
A) Universal Size & Weight (Baseline: Austenitic Grades — 304/316)
| Diameter (mm) | Weight (KG/MTR) | Diameter (inch) | Weight (KG/MTR) |
|---|---|---|---|
| 3 | 0.06 | 1/8" | 0.06 |
| 5 | 0.16 | 1/4" | 0.25 |
| 10 | 0.62 | 1/2" | 1.00 |
| 15 | 1.40 | 5/8" | 1.56 |
| 20 | 2.48 | 3/4" | 2.25 |
| 25 | 3.90 | 1" | 4.03 |
| 30 | 5.55 | 1 1/4" | 6.30 |
| 40 | 9.90 | 1 1/2" | 9.08 |
| 50 | 15.40 | 2" | 16.10 |
B) Grade-wise Density & Weight Correction Factors
| Grade Family | Included Grades | Typical Density (g/cm³) | Weight Factor vs 304/316 |
|---|---|---|---|
| Austenitic | J7, J4, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H | ≈ 7.93 | 1.000 (baseline) |
| Ferritic / Martensitic | 409L, 410, 410S, 420, 429, 430, 430Ti, 439, 441, 444 | ≈ 7.70 | 0.971 (≈ 7.70 / 7.93) |
| Duplex | S31803 (2205) | ≈ 7.80 | 0.984 (≈ 7.80 / 7.93) |
C) Grade-wise Weight (KG/MTR) — Quick Reference
Multiply the baseline weight (Column “Austenitic 304/316”) by the factor above to estimate Ferritic/Martensitic and Duplex weights. Shown below for common diameters:
| Diameter | Unit | Austenitic (304/316) | Ferritic/Martensitic (e.g., 430) | Duplex (S31803) |
|---|---|---|---|---|
| 3 | mm | 0.06 | 0.06 × 0.971 = 0.058 | 0.06 × 0.984 = 0.059 |
| 5 | mm | 0.16 | 0.16 × 0.971 = 0.155 | 0.16 × 0.984 = 0.157 |
| 10 | mm | 0.62 | 0.62 × 0.971 = 0.602 | 0.62 × 0.984 = 0.610 |
| 15 | mm | 1.40 | 1.40 × 0.971 = 1.36 | 1.40 × 0.984 = 1.38 |
| 20 | mm | 2.48 | 2.48 × 0.971 = 2.41 | 2.48 × 0.984 = 2.44 |
| 25 | mm | 3.90 | 3.90 × 0.971 = 3.79 | 3.90 × 0.984 = 3.84 |
| 30 | mm | 5.55 | 5.55 × 0.971 = 5.39 | 5.55 × 0.984 = 5.46 |
| 40 | mm | 9.90 | 9.90 × 0.971 = 9.61 | 9.90 × 0.984 = 9.74 |
| 50 | mm | 15.40 | 15.40 × 0.971 = 14.95 | 15.40 × 0.984 = 15.15 |
| 1/8" | inch | 0.06 | 0.06 × 0.971 = 0.058 | 0.06 × 0.984 = 0.059 |
| 1/4" | inch | 0.25 | 0.25 × 0.971 = 0.243 | 0.25 × 0.984 = 0.246 |
| 1/2" | inch | 1.00 | 1.00 × 0.971 = 0.971 | 1.00 × 0.984 = 0.984 |
| 5/8" | inch | 1.56 | 1.56 × 0.971 = 1.52 | 1.56 × 0.984 = 1.53 |
| 3/4" | inch | 2.25 | 2.25 × 0.971 = 2.19 | 2.25 × 0.984 = 2.21 |
| 1" | inch | 4.03 | 4.03 × 0.971 = 3.91 | 4.03 × 0.984 = 3.96 |
| 1 1/4" | inch | 6.30 | 6.30 × 0.971 = 6.12 | 6.30 × 0.984 = 6.20 |
| 1 1/2" | inch | 9.08 | 9.08 × 0.971 = 8.81 | 9.08 × 0.984 = 8.93 |
| 2" | inch | 16.10 | 16.10 × 0.971 = 15.64 | 16.10 × 0.984 = 15.84 |
D) Shapes, Tolerances & Grades Covered
- Shapes: Round, Hexagonal, Square, Flat (bright/black/peeled/ground).
- Tolerances: Typically h9–h11 for cold-drawn rounds (check ASTM A276/A484, EN 10060/10278 for exact limits).
- Grades (by family):
Austenitic: J7, J4, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H
Ferritic/Martensitic: 409L, 410, 410S, 420, 429, 430, 430Ti, 439, 441, 444
Duplex: S31803 (2205)
Formula (round bars): Weight (kg/m) = (π/4) × D² (mm²) × Density (g/cm³) × 10−6. Use density by grade family from Table B to compute grade-specific theoretical weights.
Tell Us What You Need
30+
Years of Experience
Trusted Worldwide | Supplying Copper & Alloys to 1000+ clients
We usually respond within 24 working hours.