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

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Stainless Steel 304 Pipe

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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 PipeUNS S30400 Seamless PipeWNR. 1.4301 Seamless Pipe
SS 304 Welded PipeStainless Steel 304 Round PipeStainless Steel 304 Square Pipe
Stainless Steel 304 Rectangular PipeFabricated 304 Stainless Steel Pipes304 Electropolished Pipes

Equivalents of 304 Stainless Steel Grade

GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
BSEnNoName
304S30400304S3158E1.4301X5CrNi18-102332SUS 304

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

GradeCMnSiPSCrMoNiN
304min.188
max.0.0820.750.0450.032010.50.1

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

GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max
3045152054092201

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

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
304800019317.217.818.416.221.5500720

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 NBO.D.Pipe Schedules
inches5s51010s203040s406080s80100120140160Dbl.
mmStdE.H.E.H.
1/80.4050.891.241.241.731.732.412.41
10.290.210.280.280.360.360.470.47
1/40.541.241.651.652.242.243.023.02
13.720.380.490.490.630.630.800.80
3/80.6751.241.651.652.312.313.203.20
17.150.490.630.630.840.841.091.09
1/20.841.651.652.112.112.772.773.733.734.787.47
21.340.800.801.001.001.271.271.621.621.942.55
3/41.051.651.652.112.112.872.873.913.915.567.82
26.671.021.021.281.281.681.682.192.192.883.63
11.3151.651.652.772.773.383.384.554.556.359.09
33.401.291.292.092.092.502.503.233.234.235.45
1-1/41.661.651.652.772.773.563.564.854.856.359.70
42.161.651.652.692.693.383.384.464.465.607.76
1-1/21.91.651.652.772.773.683.685.085.087.1410.16
48.261.901.903.103.104.044.045.405.407.239.54
22.3751.651.652.772.773.913.915.545.548.7411.07
60.332.392.393.933.935.445.447.477.4711.113.4
2-1/22.8752.112.113.053.055.165.167.017.019.5314.02
73.033.683.685.255.258.628.6211.411.414.920.4
33.52.112.113.053.055.495.497.627.6211.1315.24
88.904.514.516.456.4511.311.315.315.321.327.7
3-1/242.112.113.053.055.745.748.088.0816.15
101.65.175.177.407.4013.613.618.618.634.0
44.52.112.113.053.056.026.027.148.568.5611.1313.4917.12
114.35.835.838.358.3516.116.118.822.322.328.333.541.0
4-1/256.279.0218.03
127.018.626.248.4
55.5632.772.773.403.406.556.559.539.5312.7015.8819.05
141.39.459.4511.611.621.821.830.930.940.249.157.4
66.6252.772.773.403.407.117.1110.9710.9714.2718.2621.95
168.311.311.313.813.828.228.242.542.554.267.479.1
77.6257.6512.7022.23
193.735.156.693.9
88.6252.772.773.763.766.357.048.188.1810.3112.7012.7015.0918.2620.6223.0122.23
219.114.814.819.919.933.336.842.542.553.064.664.675.790.7100.8111.2107.8
99.6258.6912.70
244.550.472.5
1010.753.403.404.194.196.357.809.279.2712.7012.7015.0918.2621.4425.4028.5825.40
273.122.622.627.827.841.751.060.260.281.581.595.7114.5132.7154.9172.1155.0
1111.759.5312.70
298.567.889.4
1212.753.964.194.574.576.358.389.5310.3114.2712.7017.4821.4425.4028.5833.32
323.931.433.036.036.049.765.173.879.7108.997.4131.7159.5186.8207.9238.7
14143.966.354.787.929.539.5311.1315.0912.7019.0523.8327.7931.7535.71
355.634.354.641.368.081.281.294.3126.4107.3157.9194.5224.3253.3281.4
16164.196.354.787.929.539.5312.7016.6612.7021.4426.1930.9436.5040.49
406.441.562.647.277.993.193.1123.2160.0123.2203.1245.3286.2332.6364.8
18184.196.354.787.9211.139.5314.2719.0512.7023.8329.3634.9339.6745.24
457.246.870.553.287.8122.1105.1156.0205.7139.1254.2309.5363.3408.1459.1
20204.786.355.549.5312.709.5315.0920.6212.7026.1932.5438.1044.4550.01
508.059.278.568.9117.0154.9117.0182.9247.6154.9310.9381.1441.1507.6564.0
24245.546.356.359.5314.279.5317.4824.6112.7030.9638.8946.0252.3759.54
609.682.494.494.4140.8209.5140.8254.8354.3186.8441.1546.8639.0718.9806.4
26267.9212.709.5312.70
660.4127.4202.6152.7202.6
28287.9212.7015.889.53
711.2137.3218.5271.9164.7
30300.257.927.9212.7015.889.5312.70
762.079.4146.8147.2234.4291.8176.6234.4
32327.9212.7015.889.5317.4812.70
812.8157.1250.3311.7188.5342.4250.3
34347.9212.7015.889.5317.48
863.6167.0266.2331.5200.4364.3
36367.9215.889.5319.0512.70
914.4177.0351.4212.3420.2282.1

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 SizePipe ScheduleTemperature (F)/(◦C)
(inches)100200300400500600650700750
 37.893.3149204260316343371399
1″40304826292362217120191924186718241810
80421336343265300227912659258025282501
160614052964759437540683876376136843646
1 1/2″40225719471750160814961425138313541340
80318227442466226721082009194919091889
160461939843580329130602916282927722743
2″40190216401474135512601201116511411129
80274723692129195718201734168216481631
160449938803486320529802840275526992671
3″40180615581400128711961140110610841072
80255322021979181916911612156415321516
160384033122976273625442424235223042280
4″4015311321118710911014967938919909
80221319091715157714661397135513281314
160360131062791256623862273220621612138
5″40134211581040956889847822805797
80198117091535141113121250121311891176
160341429452646243322622155209120492027
6″4012191052945869808770747732724
80191316501483136312671208117211481136
160328928362549234321792076201419731953
8″401073926832765711678657644637
80169214591311120511211068103610151005
160317527382460226221032004194419051885
10″40974840755694645615596584578
80160913881247114710661016986966956
160314727142439224220851986192718801868

Stainless Steel Tubing Pressure Rating Table

 Tube ODWalll Thickness (mm) 
(mm) 0.811.21.51.822.22.52.833.544.55
Working Pressure (bar)
3670
6310420540710
8310390520
10240300400510582
12200250330410470
14160200270340380430
15150190250310360400
16170230290330370400
18150200260290320370
20140180230260290330380
22140160200230260300240
25180200230260290320
28180200230260280330
30170180210240260310
32160170200220240290330
38140160190200270270310
50150210210240270

Manufacturing & Stock Range for 304 Stainless Steel Pipes in India

NameStainless Steel Pipes
StandardASTM A554, A249, A269 and A270, A312
Material Grade201 ( 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 Diameter6mm–914.4 (1/4″ NB to 36″ NB)
Thickness0.8mm to 30 mm Wall thickness
Length6m or as customer’s request
a) Outer Diameter:  +/- 0.2mm
Toleranceb) Thickness: +/- 0.02mm
c) Length: +/- 5mm
SurfaceAnnealed & Pickled (Passivated) Finish
180G, 320G, 400G Satin / Hairline
400G, 500G, 600G or 800G Mirror finish
TestHydro Test, Eddy Current Test, Heat Treatment, NDT
Chemical Composition of Material  Material201202304316430
C≤0.15≤0.15≤0.08≤0.08≤0.12
Si≤1.00≤1.00≤1.00≤1.00≤1.00
Mn5.5-7.57.5-10≤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
Cr16-1817-1918-2016-1816-18
Ni3.5-5.54-68-10.510-14
Mo2.0-3.0
Mechanical PropertyMaterial Item201202304316
Tensile Strength≥535≥520≥520≥520
Yield Strength≥245≥205≥205≥205
Extension≥30%≥30%≥35%≥35%
Hardness (HV)<253<253<200<200
PaymentPayment by T/T, 30% as advance payment and 70% balance, against Invoice Before Delivery
Delivery time3 days if goods are in stock.
20 days if goods nee to be produced after order
ValidityValid 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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