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SS 304 Pipes Suppliers. Seamless & Welded 304 Pipes, WNR. 1.4301, UNS S30400 Pipes

//Stainless Steel 304 Pipe

Stainless Steel 304 Pipe

200.00

Stainless Steel Pipes Manufacturers & Suppliers, Seamless & Welded Stainless Steel Pipes – Top Quality Stainless Steel Seamless Pipes at Best Prices, WNR. 1.4301, UNS S30400 Pipes

  • Equivalents: WNR. 1.4301, UNS S30400
  • Specification: ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358
  • Size: 1/2″ to 48″, Thickness: SCH 5S, 10S, 40S (STD), 80S (XS), 160, XXS
  • Products: Seamless Pipes, Welded Pipes, ERW Pipes, Electropolished Pipes, Square Pipes, Rectangular Pipes, Thick Wall Pipes, Thin Wall Pipes, Decorative Pipes, Polished Pipes, Round Pipes
  • Stainless steel pipes are available in sizes ranging from 1/2 in. to 48 in. & lengths of 20 ft.

Metline is one of the largest manufacturers of standard & custom industrial stainless steel pipes including 304, 304L, 316L, 321, 347 and Duplex alloy stainless steel pipes. We manufacture welded and seamless stainless steel pipes in schedule 10, 40 and 80 in 1/8″ to 24″ sizes. Our stainless steel pipe processing capabilities include tapering, cutting, reaming, chamfering, grooving, machining and bending.

Due to their high corrosion resistance and top quality, our stainless steel seamless and welded pipes are widely supplied to many industries, such as electricity, petroleum, natural gas, chemicals, shipbuilding, heating, papermaking, metallurgy and so on.

Specifications:

  • ASTM A312 – This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service
  • ASTM A358 – This specification includes electric-fusion-welded austenitic chromium-nickel stainless steel pipe.

SS 304 Seamless Pipes, SS 304 Welded Pipes, SS 304 Pipes Manufacturers, SS 304 Welded Pipes Wholesalers, SS 304 Seamless Pipes Suppliers in Mumbai, SS 304 Seamless Pipes Importers

Description

Manufacturers of Stainless Steel 304 Pipes, SS 304 Seamless Pipes, SS 304 Welded Pipes, Polished 304 Pipes Manufacturers

Metline is  a specialist manufacturer and supplier of 304 stainless steel pipes in India, with over 200 customers throughout the world. Stainless steel 304 pipes are generally used for applications where corrosion protection is necessary. We manufacture, stock and sell stainless steel 304, WNR. 1.4301, UNS S30400 seamless and welded pipes or tube. Metline is a supplier of full range of stainless steel 304 pipe schedules ranging from Sch 5 thru Double Extra Heavy. All our 304 stainless steel pipe offerings can be cut to size, threaded or polished per customer requirements.

About 304 Stainless Steel

Stainless steel 304(SS304) is the most basic stainless steel known as 18-8 grade with higher chromium and low carbon content. The low carbon content restricts carbide precipitation during welding as well as minimizes its susceptibility to intergranular corrosion. Stainless steel 304L(SS304L) is an extra low-carbon variation of SS304 with a 0.03% maximum carbon content that eliminates carbide precipitation due to welding. Both SS304 and SS304L have excellent resistance to a wide range of atmospheric, chemical and petrochemical, and food industry corrosions. Usually, they can be used in applications with the maximum temperature of 1650°F[900°C] exhibiting good oxidation resistance.

Types of 304, WNR. 1.4301, UNS S30400 Stainless Steel Pipes

SS 304 Seamless Pipe UNS S30400 Seamless Pipe WNR. 1.4301 Seamless Pipe
SS 304 Welded Pipe Stainless Steel 304 Round Pipe Stainless Steel 304 Square Pipe
Stainless Steel 304 Rectangular Pipe Fabricated 304 Stainless Steel Pipes 304 Electropolished Pipes

Equivalents of 304 Stainless Steel Grade

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
304 S30400 304S31 58E 1.4301 X5CrNi18-10 2332 SUS 304

Chemical Composition of WNR. 1.4301, UNS S30400, 304 Stainless Steel Pipes

Grade C Mn Si P S Cr Mo Ni N
304 min. 18 8
max. 0.08 2 0.75 0.045 0.03 20 10.5 0.1

Mechanical Properties for WNR. 1.4301, UNS S30400, 304 Stainless Steel Pipes

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304 515 205 40 92 201

Physical Properties of WNR. 1.4301, UNS S30400, 304 Stainless Steel Pipes

Grade Density (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)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
304 8000 193 17.2 17.8 18.4 16.2 21.5 500 720

Applications of WNR. 1.4301, UNS S30400, 304 Stainless Steel Pipes

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Steel Pipes NB Sizes, Stainless Steel Pipes Weight Per Meter, for Stainless Steel Seamless & Welded Pipes

Size NB O.D. Pipe Schedules
inches 5s 5 10 10s 20 30 40s 40 60 80s 80 100 120 140 160 Dbl.
mm Std E.H. E.H.
1/8 0.405 0.89 1.24 1.24 1.73 1.73 2.41 2.41
10.29 0.21 0.28 0.28 0.36 0.36 0.47 0.47
1/4 0.54 1.24 1.65 1.65 2.24 2.24 3.02 3.02
13.72 0.38 0.49 0.49 0.63 0.63 0.80 0.80
3/8 0.675 1.24 1.65 1.65 2.31 2.31 3.20 3.20
17.15 0.49 0.63 0.63 0.84 0.84 1.09 1.09
1/2 0.84 1.65 1.65 2.11 2.11 2.77 2.77 3.73 3.73 4.78 7.47
21.34 0.80 0.80 1.00 1.00 1.27 1.27 1.62 1.62 1.94 2.55
3/4 1.05 1.65 1.65 2.11 2.11 2.87 2.87 3.91 3.91 5.56 7.82
26.67 1.02 1.02 1.28 1.28 1.68 1.68 2.19 2.19 2.88 3.63
1 1.315 1.65 1.65 2.77 2.77 3.38 3.38 4.55 4.55 6.35 9.09
33.40 1.29 1.29 2.09 2.09 2.50 2.50 3.23 3.23 4.23 5.45
1-1/4 1.66 1.65 1.65 2.77 2.77 3.56 3.56 4.85 4.85 6.35 9.70
42.16 1.65 1.65 2.69 2.69 3.38 3.38 4.46 4.46 5.60 7.76
1-1/2 1.9 1.65 1.65 2.77 2.77 3.68 3.68 5.08 5.08 7.14 10.16
48.26 1.90 1.90 3.10 3.10 4.04 4.04 5.40 5.40 7.23 9.54
2 2.375 1.65 1.65 2.77 2.77 3.91 3.91 5.54 5.54 8.74 11.07
60.33 2.39 2.39 3.93 3.93 5.44 5.44 7.47 7.47 11.1 13.4
2-1/2 2.875 2.11 2.11 3.05 3.05 5.16 5.16 7.01 7.01 9.53 14.02
73.03 3.68 3.68 5.25 5.25 8.62 8.62 11.4 11.4 14.9 20.4
3 3.5 2.11 2.11 3.05 3.05 5.49 5.49 7.62 7.62 11.13 15.24
88.90 4.51 4.51 6.45 6.45 11.3 11.3 15.3 15.3 21.3 27.7
3-1/2 4 2.11 2.11 3.05 3.05 5.74 5.74 8.08 8.08 16.15
101.6 5.17 5.17 7.40 7.40 13.6 13.6 18.6 18.6 34.0
4 4.5 2.11 2.11 3.05 3.05 6.02 6.02 7.14 8.56 8.56 11.13 13.49 17.12
114.3 5.83 5.83 8.35 8.35 16.1 16.1 18.8 22.3 22.3 28.3 33.5 41.0
4-1/2 5 6.27 9.02 18.03
127.0 18.6 26.2 48.4
5 5.563 2.77 2.77 3.40 3.40 6.55 6.55 9.53 9.53 12.70 15.88 19.05
141.3 9.45 9.45 11.6 11.6 21.8 21.8 30.9 30.9 40.2 49.1 57.4
6 6.625 2.77 2.77 3.40 3.40 7.11 7.11 10.97 10.97 14.27 18.26 21.95
168.3 11.3 11.3 13.8 13.8 28.2 28.2 42.5 42.5 54.2 67.4 79.1
7 7.625 7.65 12.70 22.23
193.7 35.1 56.6 93.9
8 8.625 2.77 2.77 3.76 3.76 6.35 7.04 8.18 8.18 10.31 12.70 12.70 15.09 18.26 20.62 23.01 22.23
219.1 14.8 14.8 19.9 19.9 33.3 36.8 42.5 42.5 53.0 64.6 64.6 75.7 90.7 100.8 111.2 107.8
9 9.625 8.69 12.70
244.5 50.4 72.5
10 10.75 3.40 3.40 4.19 4.19 6.35 7.80 9.27 9.27 12.70 12.70 15.09 18.26 21.44 25.40 28.58 25.40
273.1 22.6 22.6 27.8 27.8 41.7 51.0 60.2 60.2 81.5 81.5 95.7 114.5 132.7 154.9 172.1 155.0
11 11.75 9.53 12.70
298.5 67.8 89.4
12 12.75 3.96 4.19 4.57 4.57 6.35 8.38 9.53 10.31 14.27 12.70 17.48 21.44 25.40 28.58 33.32
323.9 31.4 33.0 36.0 36.0 49.7 65.1 73.8 79.7 108.9 97.4 131.7 159.5 186.8 207.9 238.7
14 14 3.96 6.35 4.78 7.92 9.53 9.53 11.13 15.09 12.70 19.05 23.83 27.79 31.75 35.71
355.6 34.3 54.6 41.3 68.0 81.2 81.2 94.3 126.4 107.3 157.9 194.5 224.3 253.3 281.4
16 16 4.19 6.35 4.78 7.92 9.53 9.53 12.70 16.66 12.70 21.44 26.19 30.94 36.50 40.49
406.4 41.5 62.6 47.2 77.9 93.1 93.1 123.2 160.0 123.2 203.1 245.3 286.2 332.6 364.8
18 18 4.19 6.35 4.78 7.92 11.13 9.53 14.27 19.05 12.70 23.83 29.36 34.93 39.67 45.24
457.2 46.8 70.5 53.2 87.8 122.1 105.1 156.0 205.7 139.1 254.2 309.5 363.3 408.1 459.1
20 20 4.78 6.35 5.54 9.53 12.70 9.53 15.09 20.62 12.70 26.19 32.54 38.10 44.45 50.01
508.0 59.2 78.5 68.9 117.0 154.9 117.0 182.9 247.6 154.9 310.9 381.1 441.1 507.6 564.0
24 24 5.54 6.35 6.35 9.53 14.27 9.53 17.48 24.61 12.70 30.96 38.89 46.02 52.37 59.54
609.6 82.4 94.4 94.4 140.8 209.5 140.8 254.8 354.3 186.8 441.1 546.8 639.0 718.9 806.4
26 26 7.92 12.70 9.53 12.70
660.4 127.4 202.6 152.7 202.6
28 28 7.92 12.70 15.88 9.53
711.2 137.3 218.5 271.9 164.7
30 30 0.25 7.92 7.92 12.70 15.88 9.53 12.70
762.0 79.4 146.8 147.2 234.4 291.8 176.6 234.4
32 32 7.92 12.70 15.88 9.53 17.48 12.70
812.8 157.1 250.3 311.7 188.5 342.4 250.3
34 34 7.92 12.70 15.88 9.53 17.48
863.6 167.0 266.2 331.5 200.4 364.3
36 36 7.92 15.88 9.53 19.05 12.70
914.4 177.0 351.4 212.3 420.2 282.1

Stainless Steel Pipes Pressure Rating Table – Pipe Sizes & Pressure Ratings

Ratings for standard seamless stainless steel pipes, temperatures ranging 100oF to 750oF. All ratings in psig based on ANSI/ASME B 31.1. ASTM A316L Stainless Steel Pipes

Pressure Rating (psig) 
Pipe Size Pipe Schedule Temperature (F)/(◦C)
(inches) 100 200 300 400 500 600 650 700 750
  37.8 93.3 149 204 260 316 343 371 399
1″ 40 3048 2629 2362 2171 2019 1924 1867 1824 1810
80 4213 3634 3265 3002 2791 2659 2580 2528 2501
160 6140 5296 4759 4375 4068 3876 3761 3684 3646
1 1/2″ 40 2257 1947 1750 1608 1496 1425 1383 1354 1340
80 3182 2744 2466 2267 2108 2009 1949 1909 1889
160 4619 3984 3580 3291 3060 2916 2829 2772 2743
2″ 40 1902 1640 1474 1355 1260 1201 1165 1141 1129
80 2747 2369 2129 1957 1820 1734 1682 1648 1631
160 4499 3880 3486 3205 2980 2840 2755 2699 2671
3″ 40 1806 1558 1400 1287 1196 1140 1106 1084 1072
80 2553 2202 1979 1819 1691 1612 1564 1532 1516
160 3840 3312 2976 2736 2544 2424 2352 2304 2280
4″ 40 1531 1321 1187 1091 1014 967 938 919 909
80 2213 1909 1715 1577 1466 1397 1355 1328 1314
160 3601 3106 2791 2566 2386 2273 2206 2161 2138
5″ 40 1342 1158 1040 956 889 847 822 805 797
80 1981 1709 1535 1411 1312 1250 1213 1189 1176
160 3414 2945 2646 2433 2262 2155 2091 2049 2027
6″ 40 1219 1052 945 869 808 770 747 732 724
80 1913 1650 1483 1363 1267 1208 1172 1148 1136
160 3289 2836 2549 2343 2179 2076 2014 1973 1953
8″ 40 1073 926 832 765 711 678 657 644 637
80 1692 1459 1311 1205 1121 1068 1036 1015 1005
160 3175 2738 2460 2262 2103 2004 1944 1905 1885
10″ 40 974 840 755 694 645 615 596 584 578
80 1609 1388 1247 1147 1066 1016 986 966 956
160 3147 2714 2439 2242 2085 1986 1927 1880 1868

Stainless Steel Tubing Pressure Rating Table

 Tube OD Walll Thickness (mm) 
(mm)  0.8 1 1.2 1.5 1.8 2 2.2 2.5 2.8 3 3.5 4 4.5 5
Working Pressure (bar)
3 670
6 310 420 540 710
8 310 390 520
10 240 300 400 510 582
12 200 250 330 410 470
14 160 200 270 340 380 430
15 150 190 250 310 360 400
16 170 230 290 330 370 400
18 150 200 260 290 320 370
20 140 180 230 260 290 330 380
22 140 160 200 230 260 300 240
25 180 200 230 260 290 320
28 180 200 230 260 280 330
30 170 180 210 240 260 310
32 160 170 200 220 240 290 330
38 140 160 190 200 270 270 310
50 150 210 210 240 270

Manufacturing & Stock Range for 304 Stainless Steel Pipes in India

Name Stainless Steel Pipes
Standard ASTM A554, A249, A269 and A270, A312
Material Grade 201 ( Ni 1.2%),
202 (Ni 3.5%~4.5%),
301(Ni 5%)
304 (Ni 8%, Cr 18%),
316 (Ni 10%, Cr 18%),
316L (Ni10%~14%),
430
Outer Diameter 6mm–914.4 (1/4″ NB to 36″ NB)
Thickness 0.8mm to 30 mm Wall thickness
Length 6m or as customer’s request
a) Outer Diameter:  +/- 0.2mm
Tolerance b) Thickness: +/- 0.02mm
c) Length: +/- 5mm
Surface Annealed & Pickled (Passivated) Finish
180G, 320G, 400G Satin / Hairline
400G, 500G, 600G or 800G Mirror finish
Test Hydro Test, Eddy Current Test, Heat Treatment, NDT
Chemical Composition of Material   Material 201 202 304 316 430
C ≤0.15 ≤0.15 ≤0.08 ≤0.08 ≤0.12
Si ≤1.00 ≤1.00 ≤1.00 ≤1.00 ≤1.00
Mn 5.5-7.5 7.5-10 ≤2.00 ≤2.00 ≤1.00
P ≤0.06 ≤0.06 ≤0.045 ≤0.045 ≤0.040
S ≤0.03 ≤0.03 ≤0.030 ≤0.030 ≤0.030
Cr 16-18 17-19 18-20 16-18 16-18
Ni 3.5-5.5 4-6 8-10.5 10-14
Mo 2.0-3.0
Mechanical Property Material Item 201 202 304 316
Tensile Strength ≥535 ≥520 ≥520 ≥520
Yield Strength ≥245 ≥205 ≥205 ≥205
Extension ≥30% ≥30% ≥35% ≥35%
Hardness (HV) <253 <253 <200 <200
Payment Payment by T/T, 30% as advance payment and 70% balance, against Invoice Before Delivery
Delivery time 3 days if goods are in stock.
20 days if goods nee to be produced after order
Validity Valid time is 3 days for price usually.

Additional information

Product

Stainless Steel 304 Pipe, UNS S30400 Stainless Steel Pipes, WNR. 1.4301 Seamless Pipe

Product Size

OD (NB Sizes) 1/2" to 72"
Wall Thickness: SCH 5 to SCH XXS, Custom Thickness

Type

Seamless Pipes, Welded Pipes, Large Diameter Fabricated Pipes, 100% X Ray Welded Pipes

Other Material Grades

304, 304L, 316, 316L, 317/L, 321/321H, 310/310S, 347/347H, 904L, 254 SMO, Alloy 20, Duplex & Super Duplex

Buttweld Pipe Fittings

-ASME B16.9
-Size 1/2" NB to 72" NB
-Elbow (LR & SR, 180 Deg, 90 Deg., 45 Deg, 3D Bends, 5D Bends, 10D Bends, Tee (Equal & Reducing), Reducer (Concentric & Eccentric), End Caps, Dish Ends, Stubend (Long & Short)

Forged Fittings

-1/8"~4" (DN6~DN100)
-ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
-Threaded & Socket Weld Pipe Fittings in Pressure Rating 3000#, 6000# & 9000#
-Elbow 90 Degree, Elbow 45 Degree, Tee, Cross, Union, Street Elbow, Coupling, Half Coupling, Reducing Coupling, Cap, Hex Head Bushing, Hex Head Plug, Square Head Plug, Round Head Plug, Bull Plug, Boss, Outlet, Hex Nipple, Swage Nipple

Flanges

-Size: 1/2" (15 NB) to 48" (1200NB)
-Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
-Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500, PN6, PN10, PN16, PN25, PN40, PN64 etc.
-Types of Flanges: Weld neck Flanges (WNRF), Slip-on Flanges (SORF), Blind Flanges (BLRF), Lap Joint Flanges
(SOLJ), Socket-weld Flanges (SWRF), Screwed (Threaded) Flanges, Long weld neck Flanges (LWNRF), Spectacle Blind Flanges, Spacer & Blind Flanges, Ring Type Joint Flanges (RTJ), Reducing Flanges, Raised Face (RF) Flanges, Orifice Flanges, Large Diameter Flanges, Custom Flanges, Drawing Flanges, Forged Flanges, Plate Flanges, Flat Face Flanges, etc.

Quality Assurance

Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report

Marking

As per Manufacturing Specification, Heat Number Traceability

Export to Africa

Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mayotte, Mozambique, Reunion, Rwanda, Seychelles, Somalia, Tanzania, United Republic of Uganda, Zambia, Zimbabwe, Angola, Cameroon, Central African Republic, Chad, Congo (Brazzaville), Congo, Democratic Republic of the Equatorial Guinea, Gabon, Sao Tome and Principe, Algeria, Egypt, Libyan Arab Jamahiriya, Morroco, South Sudan, Sudan, Tunisia, Western Sahara, Botswana, Lesotho, Namibia, South Africa, Swaziland, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire (Ivory Coast), Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Saint Helena, Senegal, Sierra Leone, Togo

Export to America

Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Bonaire, Saint Eustatius and Saba, British Virgin Islands, Cayman Islands, Cuba, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Monserrat, Puerto Rico, Saint-Barthélemy, St. Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Trinidad and Tobago, Turks and Caicos Islands, Virgin Islands (US), Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands (Malvinas), French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela, Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States

Export to Asia

Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, China, Georgia, Hong Kong, India, Indonesia, Japan, Kazakhstan, South Korea, Kyrgyzstan, Laos, Macao, Malaysia, Maldives, Mongolia, Myanmar (ex-Burma), Nepal, Pakistan, Phillipines, Singapore, Sri Lanka (ex-Ceilan), Taiwan, Tajikistan, Thailand, Timor Leste (West), Turkmenistan, Uzbekistan, Vietnam

Export to Europe

Albania, Andorra, Belarus, Bosnia, Croatia, European Union, Faroe Islands, Gibraltar, Guerney and Alderney, Iceland, Jersey, Kosovo, Liechtenstein, Macedonia, Man, Island of Moldova, Monaco, Montenegro, Norway, Russia, San Marino, Serbia, Svalbard and Jan Mayen Islands, Switzerland, Turkey, Ukraine, Vatican City State (Holy See)

Export to European Union

Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom

Export to Middle East

Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen

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