Stainless Steel 310/310S Round Bar
What is Stainless Steel 310/310S Round Bar
SS 310/310S is an austenitic grade of steel designed for the high temperature and pressure environments. SS 310 can resist high degrees of oxidation as much up to 2010 Degree F under sensitive environments. Apart from these properties, SS 310 grade bars are also resistant from sulfide environments and can also be used under limited carburizing environments thanks to the highest proportion of chromium.
For the specifically countering carburized environment usually across thermal process equipment, SS 330 is used. However, the most applicable atmospheres for SS 310/310S grade comprises oxidizing, nitriding, cementing, and thermal equipment atmospheres though temperature should not exceed the range of given limit to maintain the properties of the material of SS 310 and 310S bars. SS 310S Round Bars is the lower carbon version grade which finds applications such as petroleum refining, power generation, thermal processing, and others.

UNS S31000 Bright Bars, UNS S31000 Electrode Wire Manufacturer, ASME SA276 SS 310 Tig Wire Exporter, ASTM A276 SS 310 Round Bars, 310S SS Triangle Bar, DIN 1.4841 Shaft, ASME SA276 SS 310 Tig Wire, 310S SS PSQ Bar, UNS S31000 Electrode Wire.
Sumit Impex is the manufacturer and exporter of Stainless Steel 310 / 310S Round Bar. These round bars are accessible in a variety of sorts including SS 310/310S Bright Bars, SS 310/310S Rods, SS 310/310S Polish Bars, SS 310/310S Forged Bars, and many more based on the specific demand of the clients.
SS 310/310S both are the nickel-chromium steel grade bars that offer excellent corrosion resistance. And oxidation resistance from reducing atmospheres. We are the worldwide suppliers and exporters of following stainless steels bars with effective prices of the market. To know more about the products : feel free to contact us.
Specification:- Stainless Steel 310/310S Round Bar
Specification | A276 / A479, SA276 / A479 |
Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
Range | 3.17 MM TO 350 MM DIA |
Size | Round Bar Size: 3mm~ 800mm Square Bar Size: 4mm* 4mm ~100mm* 100mm Flat Bar Size: 2mm ~ 100mm Hex Bar Size: 2mm ~ 100mm |
Thickness | 50 mm to 6000 mm Long |
Length | 1 To 6 Meters, Custom Cut Length |
Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
Equivalent Grade:- Stainless Steel 310/310S Round Bar
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
SS 310 | 1.4841 / 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | - | X15CrNi25-20 |
SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | - | X8CrNi25-21 |
Chemical Composition:- Stainless Steel 310/310S Round Bar
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
SS 310 | 0.015 max | 2.0 max | 0.15 max | 0.020 max | 0.015 max | 24.00 - 26.00 | 0.10 max | 19.00 - 21.00 | 54.7 min |
SS 310S | 0.08 max | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.00 - 26.00 | 0.75 max | 19.00 - 21.00 | 53.095 min |
Mechanical Properties:- Stainless Steel 310/310S Round Bar
Grades | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
310/ 310S | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Dimensions:- Stainless Steel 310/310S Round Bar
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 |
Weight Chart:- Stainless Steel 310/310S Round Bar
Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
3mm | 0.017 | 0.055 | 20mm | 0.753 | 2.470 | 3" | 10.900 | 35.762 |
1/8" | 0.019 | 0.062 | 22mm | 0.908 | 2.979 | 3-1/4" | 12.800 | 41.996 |
5/32" | 0.029 | 0.095 | 7/8" | 0.926 | 3.038 | 3-1/2" | 14.850 | 48.772 |
4mm | 0.030 | 0.098 | 24mm | 1.080 | 3.543 | 3-3/4" | 17.001 | 55.780 |
3/16" | 0.043 | 0.141 | 25mm | 1.180 | 3.871 | 4" | 19.306 | 63.340 |
5mm | 0.047 | 0.154 | 1" | 1.210 | 3.970 | 4-1/4" | 21.908 | 72.249 |
7/32" | 0.058 | 0.190 | 26mm | 1.271 | 4.170 | 4-1/2" | 24.4487 | 80.340 |
6mm | 0.068 | 0.223 | 27mm | 1.368 | 4.490 | 4-3/4" | 27.366 | 90.249 |
1/4" | 0.076 | 0.249 | 1-1/8" | 1.534 | 5.033 | 5" | 30.461 | 99.940 |
7mm | 0.091 | 0.298 | 30mm | 1.691 | 5.548 | 5-1/2" | 36.690 | 121.000 |
5/16" | 0.118 | 0.387 | 1-1/4" | 1.924 | 6.349 | 6" | 43.860 | 143.900 |
8mm | 0.120 | 0.398 | 32mm | 1.894 | 6.314 | 6-1/2" | 51.093 | 167.630 |
9mm | 0.152 | 0.498 | 1-3/8" | 2.303 | 7.550 | 7" | 59.432 | 196.000 |
3/8" | 0.170 | 0.557 | 35mm | 2.390 | 7.553 | 7-1/2" | 68.226 | 225.000 |
10mm | 0.189 | 0.620 | 36mm | 2.438 | 7.999 | 8" | 77.586 | 254.55 |
11mm | 0.228 | 0.748 | 38mm | 2.792 | 8.903 | 10" | 121.048 | 397.140 |
7/16" | 0.232 | 0.761 | 1-1/2" | 2.715 | 8.951 | |||
12mm | 0.271 | 0.889 | 40mm | 3.009 | 9.872 | |||
1/2" | 0.303 | 0.994 | 1-5/8" | 3.200 | 10.449 | |||
13mm | 0.318 | 1.043 | 1-3/4" | 3.712 | 12.179 | |||
14mm | 0.368 | 1.207 | 45mm | 3.807 | 12.555 | |||
9/16" | 0.383 | 1.256 | 1-7/8" | 4.260 | 13.977 | |||
15mm | 0.424 | 1.391 | 48mm | 4.330 | 14.205 | |||
5/8" | 0.473 | 1.551 | 50mm | 4.698 | 15.414 | |||
16mm | 0.481 | 1.578 | 2" | 4.848 | 15.906 | |||
17mm | 0.543 | 1.791 | 2-1/8" | 5.475 | 17.963 | |||
11/16" | 0.573 | 1.880 | 2-1/4" | 6.135 | 20.128 | |||
18mm | 0.610 | 2.001 | 60mm | 6.768 | 22.205 | |||
3/4" | 0.682 | 2.237 | 2-3/8" | 6.838 | 22.435 | |||
2-1/2" | 7.576 | 24.856 | ||||||
2-5/8" | 8.354 | 27.409 | ||||||
2-3/4" | 9.169 | 30.083 |
Different Types:- Stainless Steel 310/310S Round Bar













- SS 310 Galvanized Round Bar
- ASTM A276 Galvanized Round Bar
- ASME SA276 Galvanized Round Bar
- UNS S31000 Galvanized Round Bar
- WNR 1.4841 Galvanized Round Bar

- SS 310S Grade Hexagonal Bar
- ASTM A276 Hexagonal Bar
- ASME SA276 Hexagonal Bar
- UNS S31008 Hexagonal Bar
- WNR 1.4845 Hexagonal Bar

- SS 310 Polished Round Bar
- ASTM A276 Polished Round Bar
- ASME SA276 Polished Round Bar
- UNS S31000 Polished Round Bar
- WNR 1.4841 Polished Round Bar
Price List:- Stainless Steel 310/310S Round Bar
- Stainless Steel 310 Hex Bar
USD $2.1 – $10.03 / Kg - SS 310S Round Bar
USD $2.05 – $10.18 / Kg - Alloy 310 Bright Bar
USD $2.45 – $10.48 / Kg - SS 310 Threaded Bar
USD $2.18 – $10.81 / Kg - UNS S31000 Flat Bar
USD $2.14 – $10.45 / Kg - ASTM A276 SS 310S Square Bar
USD $2.11 – $5.2 / Kg - DIN 1.4841 Black Bar
USD $2.13 – $10.92 / Kg

Application Industries
- Construction
- Bridges
- Petrochemical Industry
- Ship Building
- Engineering
- General Structural Purposes
- Offshore and Onshore Services

Packaging Industries
We Sumit Impex Metal Ensure the Best Quality of Packing, Because It Plays an Important Role Especially in the Case of International Shipments in Which Consignment Passes Through Various Channels to Reach the Ultimate Destination, So We Put Extraordinary Concern Regarding Packaging.
We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
- Boxes and Crates
- Shrink-wrapped
- Carton boxes
- Wooden pallets
- Wooden boxes
- Wooden crates

Testings (Destructive, Non Destructive)
- Mechanical Testing Such as Tensile, Elongation, Reduction of Area
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
- Positive Material Identification – PMI Testing
- Chemical Analysis – Spectro Analysis
- Intergranular Corrosion (IGC) Test
- Pitting Resistance Test
- Dye Penetrant Test (DP Test)
- Bend Test
- Micro Test
- Macro Test
- Hardness Test
- Flaring Test
- Flattening Test
- Hydrostatic Test
- Radiography Test
- Ultra Sonic Test (UT)
- Eddy Current Testing
- Impact Test
