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The Stainless Steel 904L round bar is a highly alloyed austenitic stainless steel renowned for its exceptional resistance to corrosion in various aggressive environments. Originally developed to withstand environments with dilute sulfuric acid, the 904L alloy has found applications across diverse industries such as chemical processing, oil and gas exploration, and marine environments.
Composed of low carbon, high nickel, and molybdenum, the 904L alloy incorporates copper to enhance its resistance to strong reducing acids, including sulfuric acid. This unique composition grants 904L stainless steel remarkable resistance to stress corrosion cracking, pitting, as well as the ability to maintain strength and toughness at elevated temperatures.
One of the standout properties of 904L stainless steel is its remarkable resistance to corrosion. It exhibits exceptional resistance to both pitting and crevice corrosion, even in chloride-rich environments like seawater. Furthermore, it displays excellent resistance to general corrosion and erosion corrosion, making it an optimal choice for demanding applications such as offshore oil and gas production and chemical processing. Additionally, the high resistance to stress corrosion cracking enables its utilization in high-pressure and high-temperature environments, such as process equipment and piping within the chemical and petrochemical industries.
Aside from its corrosion resistance, 904L stainless steel exhibits excellent heat resistance. It retains strength and toughness even at temperatures reaching 800°F (427°C), rendering it suitable for high-temperature applications like heat exchangers and furnace components. Moreover, 904L stainless steel possesses high resistance to sulfuric acid, making it well-suited for deployment in the chemical processing industry. It also withstands other strong acids like phosphoric acid and nitric acid, making it an ideal choice for applications within the fertilizer and food industries.
In addition to its outstanding corrosion and heat resistance, 904L stainless steel offers excellent weldability and machinability. This facilitates easy fabrication and shaping into various forms and sizes, making it highly versatile for a wide array of applications.
To ensure the safe transportation of our stainless steel 904L round bars, our company packages them in sturdy wooden crates or pallets, providing protection against damage during transit. These crates or pallets are then shrink-wrapped, offering an additional layer of defense against moisture and external factors. Each pack is meticulously labeled with the grade, size, and quantity of the bars, ensuring easy identification and accurate tracking throughout the shipping process.
904l Stainless Steel Round Bar can be categorically said that steel bars are one of the core components of any manufacturing industry or for that matter any industry that relies on machineries. versatile applications in automotive, textile, fabrication, construction, cement, ship building, paper and pulp, defence, heavy earth moving equipments or aerospace.
Grade 904l Stainless Steel is the standard "18/8" stainless; it is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Grade 904l enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "904lDDQ" (Deep Drawing Quality) variants.
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
SS 904L | 1.4539 | N08904 | SUS 890L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
SS 904L Round Bar Specifications | ||
Specifications | : | ASTM A276, ASME SA276 / ASTM A479 ASME SA479 |
Dimensions | : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
SS 904L Round Bars | : | Outside Diameter in the range of 4mm to 500mm |
SS 904L Bright Bars | : | Outside Diameter in the range of 4mm to 100mm |
SS 904L Hex Bars | : | 18mm to 57mm (11/16″ to 2-3/4″) |
SS 904L Square Bars | : | 18mm ” 47mm (11/16″ to 1-3/4″) |
SS 904L Flat Bars | : | 1/2″to 10″in thickness range of 2mm to 150mm, |
Finish | : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
Length | : | 1 to 6 Meters, Custom Cut Lengths |
Form | : | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
904L | Max | Min |
Ni | 28.00 | 23.00 |
C | 0.20 | – |
Mn | 2.00 | – |
P | 0.045 | – |
S | 0.035 | – |
Si | 1.00 | – |
Cr | 23.0 | 19.0 |
Mo | 5.00 | 4.00 |
N | 0.25 | 0.10 |
CU | 2.00 | 1.00 |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
7.95 g/cm3 | 1350 °C (2460 °F) | Psi ” 71000, MPa ” 490 | Psi ” 32000, MPa ” 220 | 35% |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
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 |
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 |