Stainless Steel 304/304H/304L Round Bar
What is Stainless Steel 304/304H/304L Round Bar
Stainless steel is used extensively across many sectors because of its strong corrosion resistance, longevity and attractive appearance. The most common variety of the alloy is 304, which has two derivatives, 304H and 304L. Every grade has distinct properties that render them fit for assorted purposes.
Stainless Steel 304 Round Bar:
Stainless Steel 304 round bar is a commonly used grade in every business. It has 18% chromium and 8% nickel, making it extraordinarily robust and capable of defending against corrosion. It also can be shaped and welded, making it suitable for plenty of forming processes. The 304 grade is also known for its appearance, making it sought after for architectural works and ornamentation.
Stainless Steel 304H Round Bar:
The 304H variant of the Stainless Steel round bar offers high-temperature strengths and creep resistance due to its increased carbon content. This renders it useful for fabricating heat exchangers, boilers, and furnace applications. However, be mindful that the enhanced carbon may impair corrosion resistance compared to 304.

304L SS Rectangular Bar, ASTM A276 SS 304 Polished Bar Supplier, SS 304 Spring Bars, SS 304 Welding Wire, DIN 1.4306 Shaft Supplier, DIN 1.4306 Coil Wire Manufacturer, 304L SS Wire Mesh, DIN 1.4301 Forged Rods, DIN 1.4301 MIG Wire Stockist, UNS S30400 Bright Bars, ASME SA276 SS 304 Tig Wire.
Stainless Steel 304L Round Bar:
The Stainless Steel 304L round bar is slightly lower in carbon content than the 304 grade, providing high-level resistance to sensitization when used in welding and heat treatment. The decrease in carbon content minimizes the risk of intergranular corrosion, making it suitable for corrosive environments. Common industries where this steel is used are food processing, pharmaceuticals, and petrochemicals.
Properties of Stainless Steel 304/304H/304L Round Bar:
The three stainless steel round bar varieties – 304, 304H, and 304L – have similar essential characteristics. They are very durable against corrosive substances in many different surroundings, including acidic, alkaline, and areas with lots of chlorides. Furthermore, they boast superior mechanical characteristics, like impressive tensile strength, robustness, and impact resilience.

The 304 series is highly malleable and can easily be worked into different shapes and products. Moreover, it can be easily machined, welded, and formed with traditional techniques. Its superb weldability makes it ideal for many applications that involve putting together or assembling applications.
At Sumit Impex, we take great care in packaging our top-grade products. Our skilled team meticulously packs each item to ensure it reaches you in perfect condition. We use high-quality materials and follow industry standards to safeguard the integrity of the product during transit. Our dedication to packaging excellence guarantees that you receive the finest quality goods, ready to be enjoyed or utilized upon delivery.
Specification:- Stainless Steel 304/304H/304L 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 304/304H/304L Round Bar
STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
SS 304H | S30409 | 1.4301 | - | - | - | - | - |
Chemical Composition:- Stainless Steel 304/304H/304L Round Bar
Grade | C | Mn | Si | P | S | Cr | Mo | Ni |
SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 |
SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 |
SS 304H | 0.10 max | 2 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 |
Mechanical Properties:- Stainless Steel 304/304H/304L Round Bar
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Dimensions:- Stainless Steel 304/304H/304L 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 304/304H/304L 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 304/304H/304L Round Bar













- SS 304 Grade Precision Bar
- ASTM A276 Precision Bar
- ASME SA276 Precision Bar
- UNS S30400 Precision Bar
- WNR 1.4301 Precision Bar

- SS 304L Grade Rectangular Bar
- ASTM A276 Rectangular Bar
- ASME SA276 Rectangular Bar
- UNS S30403 Rectangular Bar
- WNR 1.4306 Rectangular Bar

- SS 304H Coated Round Bar
- ASTM A276 Coated Round Bar
- ASME SA276 Coated Round Bar
- UNS S30409 Coated Round Bar
- WNR 1.4948 Coated Round Bar
Price List:- Stainless Steel 304/304H/304L Round Bar
- Stainless Steel 304 Hex Bar
USD $2.1 – $10.03 / Kg - SS 304H Round Bar
USD $2.05 – $10.18 / Kg - Alloy 304L Bright Bar
USD $2.45 – $10.48 / Kg - SS 304 Threaded Bar
USD $2.18 – $10.81 / Kg - UNS S30400 Flat Bar
USD $2.14 – $10.45 / Kg - ASTM A276 SS 304 Square Bar
USD $2.11 – $5.2 / Kg - DIN 1.4301 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
