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Stainless Steel 304L Pipe & Tube

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Stainless Steel 304L Pipes & Tubes – Manufacturer & Supplier

Stainless Steel 304L Pipe & Tube

Sachin Steel Center is a trusted manufacturer, stockist, and supplier of Stainless Steel 304L Pipes & Tubes, offering high-quality solutions for diverse industries. Grade 304L is a low-carbon version of 304 stainless steel, widely known for its excellent corrosion resistance, superior weldability, and durability in demanding environments.

Our product range includes SS 304L seamless pipes, welded tubes, round tubes, square pipes, rectangular pipes, ERW pipes, and EFW pipes, available in a variety of sizes, thicknesses, and finishes such as polished, annealed, and pickled. We also provide customized lengths and fabricated solutions to meet specific client requirements.

Manufactured as per ASTM A312 / ASME SA312 and other international standards, our 304L pipes and tubes are designed to withstand high temperatures, pressure, and corrosive conditions. The low carbon content makes them especially suitable for welding applications by reducing the risk of carbide precipitation. At Sachin Steel Center, we ensure every product meets global quality standards with proper testing and certifications. With ready stock and reliable delivery, we are committed to providing the best quality 304L stainless steel pipes & tubes at competitive prices.

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Table Of Content

What is 304L Stainless Steel Pipe & Tube?

304L Stainless Steel Pipe & Tube is the low-carbon version of the widely used 304 grade austenitic stainless steel. The “L” stands for low carbon, which improves weldability and reduces the risk of intergranular corrosion after welding. This makes 304L pipes and tubes a preferred choice for industries that require extensive welding without post-weld heat treatment. Made from a composition of 18% chromium and 8% nickel, along with controlled amounts of carbon, manganese, silicon, and other elements, SS 304L pipes and tubes offer a strong balance of corrosion resistance, durability, and mechanical strength.

Key Features of SS 304L Pipe & Tube:

  • Excellent weldability without carbide precipitation
  • Good corrosion and oxidation resistance in various environments
  • High mechanical strength (yield strength: 170–205 MPa, tensile strength: 485–515 MPa)
  • Withstands high temperatures up to 870°C
  • Available in a wide range of sizes, schedules, and finishes

Why Choose 304L?

Compared to standard 304, 304L stainless steel minimizes the risk of corrosion at weld joints, making it the ideal solution for critical piping, tubing, and structural applications. Its cost-effectiveness, availability in multiple forms, and reliable performance under pressure and temperature make it one of the most trusted stainless steel grades worldwide.

SS 304L Pipe/Tubes: Popular Types

seamless-pipes

Stainless Steel 304L Seamless Pipe

seamless-tubes

SS 304L Welded Pipe

erw

WNR 1.4306 ERW Pipe

Welded Pipe

SUS 304L Round Pipe

Welded Tube

AISI 304L Round Pipe

Square Pipe

304L Stainless Steel Square Pipe

Request Quote on Types of SS 304L Pipes
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Specifications for Stainless Steel (SS) 304L Pipe and Tube

Specifications ASTM A/ASME SA213/A249/A269/A312/A358 CL
Dimensions ASTM, ASME and API
Schedule SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS
Wall Thickness Schedule 5S – Schedule XXS.
Size – Seamless 304L Pipes & Tubes 1/2″ NB – 24″ NB
ERW 304L Pipes & Tubes 1/2″ NB – 24″ NB
EFW 304L Pipes & Tubes 6″ NB – 100″ NB
Length Single Random, Double Random & Cut Length.
Types Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form Round, Square, Rectangular, Hydraulic Etc

Chemical Composition Chart for Stainless Steel 304L Pipes

Grade C Mn Si P S Cr Mo Ni N
304L min. – – – – – 18.0 – 8.0 –
max. 0.03 2.0 1.00 0.045 0.03 20.0 12.0 –

Stainless Steel 304L Pipe Sizes in mm

Nominal Pipe Size (NPS)Outside Diameter (OD)
mminchmm
3 mm1/8 Inch10.3 mm
6 mm1/4 Inch13.7 mm
10 mm3/8 Inch17.1 mm
15 mm1/2 Inch21.3 mm
20 mm3/4 Inch26.7 mm
25 mm1 Inch33.4 mm
32 mm1.1/4 Inch42.2 mm
40 mm1.1/2 Inch48.3 mm
50 mm2 Inch60.3 mm
65 mm2.1/2 Inch73.0 mm
80 mm3 Inch88.9 mm
100 mm4 Inch114.3 mm
125 mm5 Inch141.3 mm
150 mm6 Inch168.3 mm
200 mm8 Inch219.1 mm
250 mm10 Inch273.1 mm
300 mm12 Inch323.8 mm
350 mm14 Inch355.6 mm
400 mm16 Inch406.4 mm
450 mm18 Inch457.2 mm
500 mm20 Inch508.0 mm
600 mm24 Inch610.0 mm

Schedule Chart for SS 304L Pipe/Tubes

NOMINAL PIPE SIZEODSCH 5SCH 10SCH 40SCH 80
1/2″0.840.0650.0830.1090.147
3/4″1.050.0650.0830.1130.154
1″1.3150.0650.1090.1330.179
1-1/4″1.660.0650.1090.140.191
1-1/2″1.90.0650.1090.1450.2
2″2.3750.0830.1090.1540.218
2-1/2″2.8750.0830.120.2030.276
3″3.50.0830.120.2160.3
3-1/2″40.0830.120.2260.318
4″4.50.0830.120.2370.337

304L Stainless Steel Pipe (ASTM A312 Tp304L) Mechanical Properties

  Yield Strength(Mpa) Min
Tensile Strength(Mpa) Min		 Hardness (HRB) Max Elongation(%)
1.4307 180 480-680 90 35
TP304L 170 485 90 35

Weight Chart of SS 304L Pipes & Tubes

Nominal_Pipe_SizeOutside_Diameter_In_MMSCH_10SSTD_SCH_40SXXS
1/8″10.29 1.73
0.37		 
1/4″13.721.65
0.48		2.24
0.64		 
3/8″17.151.65
0.64		2.31
0.86		 
1/2″21.342.11
1.01		2.77
1.29		7.47
2.65
3/4″26.672.11
1.30		2.87
1.71		7.82
3.69
1″33.402.77
2.12		3.38
2.54		9.09
5.75
1 1/4″42.162.77
2.73		3.56
3.43		9.70
7.88
1 1/2″48.262.77
3.15		3.68
3.11		10.16
9.69
2″60.332.77
3.98		3.91
5.52		11.07
13.65
2 1/2″73.033.05
5.34		5.16
8.76		 
3″88.903.05
6.54		5.49
11.45		15.24
28.09
3 1/2″101.603.05
7.52		5.74
13.77		 
4″114.303.05
8.48		6.02
16.31		17.12
41.63
5″141.603.40
11.74		6.55
22.10		 
6″168.263.40
14.04		7.11
28.68		21.95
80.36
8″219.083.76
20.25		8.18
43.16		 
10″273.054.19
28.20		9.27
61.20		 
12″323.854.57
36.53		9.53
74.92		 

ASTM A213 Stainless Steel 304L Tubes Physical Properties

ASTM A213 Stainless Steel 304L Tubes Physical Properties
GradeDensity (kg/m3)Elastic Modulus (GPa)Mean Coefficient of Thermal Expansion (m/m/0C)Thermal Conductivity (W/m.K)Specific Heat 0-1000C (J/kg.K)Electrical Resistivity (n.m)
0-1000C0-3150C0-5380Cat 1000Cat 5000C
304L800019317.217.818.416.221.5500720

304L Stainless Steel Pipes/Tubes Pressure Rating

Pipe Size
(inches)		 Pipe Schedule Temperature (°F)
100 200 300 400 500 600 650 700 750
1″ 40 3048 2629 2362 2171 2019 1924 1867 1824 1810
1″ 80 4213 3634 3265 3002 2791 2659 2580 2528 2501
1″ 160 6140 5296 4759 4375 4068 3876 3761 3684 3646
1.5″ 40 2257 1947 1750 1608 1496 1425 1383 1354 1340
1.5″ 80 3182 2744 2466 2267 2108 2009 1949 1909 1889
1.5″ 160 4619 3984 3580 3291 3060 2916 2829 2772 2743
2″ 40 1902 1640 1474 1355 1260 1201 1165 1141 1129
2″ 80 2747 2369 2129 1957 1820 1734 1682 1648 1631
2″ 160 4499 3880 3486 3205 2980 2840 2755 2699 2671
3″ 40 1806 1558 1400 1287 1196 1140 1106 1084 1072
3″ 80 2553 2202 1979 1819 1691 1612 1564 1532 1516
3″ 160 3840 3312 2976 2736 2544 2424 2352 2304 2280
4″ 40 1531 1321 1187 1091 1014 967 938 919 909
4″ 80 2213 1909 1715 1577 1466 1397 1355 1328 1314
4″ 160 3601 3106 2791 2566 2386 2273 2206 2161 2138
5″ 40 1342 1158 1040 956 889 847 822 805 797
5″ 80 1981 1709 1535 1411 1312 1250 1213 1189 1176
5″ 160 3414 2945 2646 2433 2262 2155 2091 2049 2027
6″ 40 1219 1052 945 869 808 770 747 732 724
6″ 80 1913 1650 1483 1363 1267 1208 1172 1148 1136
6″ 160 3289 2836 2549 2343 2179 2076 2014 1973 1953
8″ 40 1073 926 832 765 711 678 657 644 637
8″ 80 1692 1459 1311 1205 1121 1068 1036 1015 1005
8″ 160 3175 2738 2460 2262 2103 2004 1944 1905 1885
10″ 40 974 840 755 694 945 615 596 584 578
10″ 80 1609 1388 1247 1147 1066 1016 986 966 956
10″ 160 3147 2714 2439 2242 2085 1986 1927 1880 1868

Industrial Uses of SS 304L Pipes & Tubes

    • Petrochemical Industry
    • Chemical Industry
    • Oil and Gas Industry
    • Pulp & Paper Indusry
    • Power Plant Industry
    • Food Processing Industry
    • Pharmaceuticals Industry
    • Energy Industry
    • Aerospace Industry
Application Industries

Frequently Asked Questions About SS 304L Pipes & Tubes

Both have their own advantages. 304L seamless pipes are manufactured from a single billet, offering higher strength, smooth finish, and reliability in high-pressure and critical applications. On the other hand, 304L ERW pipes (Electric Resistance Welded) are more cost-effective, available in larger sizes, and suitable for low to medium-pressure applications. The choice depends on the application requirements.

The main difference is in their chemical composition and corrosion resistance.

  • 304L contains 18% chromium and 8% nickel, making it versatile and widely used in general applications.
  • 316L has additional 2–3% molybdenum, which gives it superior resistance to chlorides, acids, and harsh chemicals.
  • Excellent weldability without carbide precipitation
  • High resistance to corrosion and oxidation
  • Good mechanical strength and durability
  • Can handle temperatures up to 870°C
  • Available in seamless, welded, ERW, and EFW forms
  • Widely used across multiple industries due to its cost-effectiveness and versatility

The process depends on the type of pipe:

  • Seamless Pipe: Produced by piercing a solid billet, then hot-rolled or cold-drawn to the required dimensions.
  • Welded Pipe: Made by rolling stainless steel strips and welding the edges (ERW, EFW, or spiral weld).

Both types are then heat-treated, pickled, polished, and tested to meet ASTM and international standards.

The difference lies in carbon content:

  • 304 Stainless Steel: Has a higher carbon content (up to 0.08%), which provides higher strength but can cause carbide precipitation after welding.
  • 304L Stainless Steel: Has lower carbon content (max 0.03%), which improves weldability and reduces the risk of intergranular corrosion.
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