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Mahavir Metals India Exporters & Supplier of Stainless Steel 304/304L Flat Bars, Stainless steel Flat Bars 304 and stainless steel Flat Bars 304L are other names for the same metal. Type 304 stainless steel is the most versatile and commonly used stainless steel. It is still known by its previous designation 18/8, taken from the nominal composition of type 304, which is 18% chromium and 8% nickel. Type 304 stainless steel is an austenitic grade that may be deep-drawn to extreme depths. Because of this feature, 304 is the most commonly utilised grade in applications such as sinks and saucepans. The low-carbon version of 304 is 304L. It is used to increase weldability in heavy gauge components. Certain goods, including plates and pipes, may be available in "dual certified" material that meets both 304 and 304L requirements.
Sr. No. | Material | Size | Thickness | Specification |
1 | Stainless Steel | 1000 mm x 2000 mm 1220 mm x 2440 mm (4′ x 8′) 1250 mm x 2500 mm 1500 mm x 3000 To 6000 mm 2000 mm x 4000 To 6000 mm | 0.3 mm To 120 mm | A – 240 |
STANDARD | UNS | AFNOR | WERKSTOFF NR. | BS | EN | GOST | JIS |
SS 304 | S30400 | Z7CN18‐09 | 1.4301 | 304S31 | X5CrNi18-10 | 08Х18Н10 | SUS 304 |
SS 304L | S30403 | Z3CN18‐10 | 1.4306 / 1.4307 | 304S11 | X2CrNi18-9 / X2CrNi19-11 | 03Х18Н11 | SUS 304L |
Property | Value |
Density | 8.00 g/cm3 |
Melting Point | 1450 °C |
Modulus of Elasticity | 193 GPa |
Electrical Resistivity | 0.72 x 10-6 Ω.m |
Thermal Conductivity | 16.2 W/m.K |
Thermal Expansion | 17.2 x 10-6/K |
% | 304 | 304L | 304H |
C | 0.0 – 0.07 | 0.0 – 0.03 | 0.04 – 0.08 |
Mn | 0.0 – 2.0 | 0.0 – 2.00 | 0.0 – 2.0 |
Si | 0.0 – 1.00 | 0.0 – 1.00 | 0.0 – 1.0 |
P | 0.0 – 0.05 | 0.0 – 0.05 | 0.0 – 0.04 |
S | 0.0 – 0.03 | 0.0 – 0.02 | 0.0 – 0.02 |
Cr | 17.50 – 19.50 | 17.50 – 19.50 | 17.00 – 19.00 |
Ni | 8.00 – 10.50 | 8.00 – 10.50 | 8.00 – 11.00 |
Fe | Balance | Balance | Balance |
N | 0.0-0.11 | 0.0-0.11 | 0.0 – 0.10 |
Grade | 304 | 304L | 304H |
Tensile Strength (MPa) | 520 – 720 | 500 – 700 | – |
Proof Stress (MPa) | 210 Min | 200 Min | – |
Elongation A5 | 45 Min % | 45 Min % | – |
Grade | 304 | 304L | 304H |
Tensile Strength (MPa) | 540 – 750 | 520 – 700 | – |
Proof Stress (MPa) | 230 Min | 220 Min | – |
Elongation A50 mm | 45 Min % | 45 Min % | – |
Grade | 304 | 304L |
Tensile Strength (MPa) | 500 – 700 | 500 – 700 |
Proof Stress (MPa) | 190 | 175 Min |
Elongation A50 mm | 45 Min % | 45 Min % |
Hardness Brinell | 215 Max HB | 215 Max HB |
METRIC STAINLESS STEEL FLAT BAR (mm) | IMPERIAL STAINLESS STEEL FLAT BAR | ||
8 X 5 | 50 X 12 mm | 3/8″ x 1/8″ | 1.1/2″ x 1/2″ |
12 X 3 | 50 X 20 mm | 1/2″ x 1/8″ | 1.1/2″ x 3/4″ |
12 X 6 | 50 X 25 mm | 1/2″ x 3/16″ | 1.1/2″ x 1″ |
12 X 10 | 50 X 40 mm | 1/2″ x 1/4″ | 1.3/4″ x 1.1/4″ |
15 X 3 | 60 X 3 mm | 5/8″ x 5/16″ | 2″ x 1/2″ |
15 X 5 | 60 X 5 mm | 3/4″ x 3/8″ | 2″ x 5/8″ |
15 X 6 | 60 X 6 mm | 1″ x 3/16″ | 2″ x 3/4″ |
15 X 10 | 60 X 8 mm | 1″ x 1/4″ | 2″ x 1.1/2″ |
16 X 8 | 60 X 10 mm | 1″ x 5/16″ | 2.1/2″ x 3/8″ |
20 X 3 | 60 X 12 mm | 1″ x 1/2″ | 2.1/2″ x 1″ |
20 X 5 | 60 X 15 mm | 1.1/4″ x 1/8″ | 2.1/2″ x 1.1/4″ |
20 X 6 | 65 X 5 mm | 1.1/4″ x 1/4″ | 3″ x 1/4″ |
20 X 8 | 65 X 6 mm | 1.1/4″ x 5/16″ | 3″ x 1/2″ |
20 X 10 | 65 X 8 mm | 1.1/4″ x 3/8″ | 3″ x 3/4″ |
20 X 12 | 65 X 10 mm | 1.1/4″ x 3/4″ | 3″ x 1″ |
25 X 3 | 65 X 12 mm | 1.1/4″ x 1″ | 4″ x 3/4″ |
25 X 4 | 65 X 15 mm | 1.1/2″ x 3/16″ | 4″ x 5/8″ |
25 X 5 | 70 X 10 mm | 1.1/2″ x 1/4″ | 4″ x 1″ |
25 X 6 | 75 X 3 mm | 1.1/2″ x 3/8″ |
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25 X 8 | 75 X 5 mm |
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25 X 10 | 75 X 6 mm |
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25 X 12 | 75 X 8 mm |
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25 X 16 | 75 X 10 mm |
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25 X 20 | 75 X 12 mm |
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30 X 3 | 75 X 15 mm |
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30 X 4 | 75 X 16 mm |
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30 X 5 | 75 X 20 mm |
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30 X 6 | 80 X 5 mm |
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30 X 8 | 80 X 6 mm |
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30 X 10 | 80 X 8 mm |
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30 X 12 | 80 X 10 mm |
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30 X 15 | 80 X 35 mm |
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30 X 20 | 100 X 3 mm |
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35 X 6 | 100 X 5 mm |
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38 X 3 | 100 X 6 mm |
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40 X 3 | 100 X 8 mm |
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40 X 5 | 100 X 10 mm |
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40 X 6 | 100 X 12 mm |
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40 X 8 | 100 X 15 mm |
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40 X 10 | 100 X 20 mm |
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40 X 12 | 100 X 25 mm |
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40 X 20 | 100 X 30 mm |
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40 X 25 | 120 X 12 mm |
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45 X 6 | 125 X 6 mm |
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50 X 3 | 150 X 6 mm |
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50 X 4 | 150 X 10 mm |
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50 X 5 | 200 X 10 mm |
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50 X 6 | 250 X 12 mm |
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50 X 8 | 300 X 12 mm |
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50 X 10 |
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