Stainless Steel 321 Pipe and Tube

SS 321 Pipe

Stainless Steel 321 Pipes

SS 321 Tubing

Stainless Steel 321 Tubing

What are Stainless Steel 321 Pipes?

Stainless Steel 321 Pipes are a common austenitic stainless steel alloy. It has excellent forming, welding, and phase stability properties. Because of its stability, the material is known for its resistance to intergranular corrosion. This makes it suitable for applications in intermittent service temperatures. SS 321 Seamless Pipes have a minimum tensile strength of 515 Mpa. The addition of titanium to the alloy boosts its strength. Alloy 321 is commonly used in engineering and chemical equipment. It has a maximum hardness of Rockwell 95 HRB. Aside from its machinability, the SS 321 Steel is resistant to atmospheric corrosion, inorganic chemicals, and chlorides. Stainless 321 is suitable for use in applications that involve high temperatures. SS 321 Pipe is preferred over stainless steel 304l pipe in the high-temperature range due to its better strength and formability. Moreover, it can be welded in place using standard shop fabrication procedures. Stainless 321 Pipe is also resistant to aqueous corrosion and subsequent aqueous corrosion. Usually, it is used in functions between 800 and 1650 Degrees C.

Aside from its machinability, the SS 321 Steel is resistant to atmospheric corrosion, inorganic chemicals, and chlorides. Stainless 321 is suitable for use in applications that involve high temperatures. SS 321 Pipe is a preferred choice in the high-temperature range over SS 304L Pipes due to its better strength and formability. Moreover, it can be welded in place using standard shop fabrication procedures. Stainless 321 Pipe is also resistant to aqueous corrosion and subsequent aqueous corrosion. Usually, it is used in functions between 800 and 1650 Degrees C.

What are Stainless Steel 321 Tubes?

Stainless Steel 321 Tubes are austenitic 18/8 stainless steel alloys stabilized with titanium. This addition to the alloy makes it more resistant to intergranular corrosion. It also helps to prevent carbide precipitation during welding. SS 321 is used in a wide variety of applications. In general, 321 tubing is a very tough and heat-resistant alloy ideal for high-temperature applications. Typical applications include high-pressure steam and boiler tubes, pressure vessels, and manifolds.

The material is also used in radiant superheaters, heavy-duty exhaust systems, and oil refinery equipment. Stainless 321 is also known for its resistance to atmospheric corrosion, sterilizing solutions, and various inorganic chemicals. SS 321 is often chosen for its resistance to carbide precipitation. While chromium carbide can form if exposed to temperatures over 900 degrees Fahrenheit, this process is less likely to occur with small-diameter SS 321 tubing. Aside from its excellent forming and welding properties, SS 321 Tubes are also very resistant to scaling and intergranular corrosion. In addition, they have a minimum tensile strength of 515 Mpa.

Tp 321 Stainless Steel Pipe, SS 321 Large Diameter Heavy Wall Pipes, Stainless Steel Pipe, High Temperature And Corrosive Stainless Steel 321 Pipes, SS 321 Seamless Pipe, Astm A321 Stainless Welded Steel Pipe Exporter, Asme Sa312 Tp321 Seamless Stainless Steel Pipe, High Quality 321 SS Pipe Price, 321 Stainless Steel Seamless Pipe Suppliers, Astm 321 Stainless Steel Pipe Price, Cheap 321 Stainless Steel Pipe, Cheap 321 SS Pipe, 321 Stainless Steel Fabricated Pipes Dealers, SS 321 Efw Pipes, SS Grade 321 Welded Erw Pipes Exporters, Austenitic Stainless Steel 321 Pipes, 321 Stainless Steel Piping, SS 321 Polished Pipe, Uns S32100 Pipe, Din 1.4541 Pipe Stockists.

The 321 alloy is a commonly used austenitic stainless steel, which offers improved corrosion resistance. It is a chromium-nickel alloy that can be welded and fabricated in various forms. In addition to its rust resistance, the material is also resistant to various inorganic chemicals. AISI 321 stainless steel tubes are ideal for applications that require a high degree of ductility. This type of alloy is commonly used in heavy welded equipment that operates at temperatures between 800 and 1500 degrees F.

Kenco tube is among the top manufacturers and dealers of SS 321 Pipes and tubes, which are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850 Degrees C. Stainless Steel 321 Tubes are used for functions in the temp range of approximately 900 Degrees C, uniting soaring potency, phase stability and resistance to scaling using resistance to succeeding aqueous corrosion. Like other austenitic grades, Alloy 321 Pipes Tubes have excellent forming and welding characteristics, are readily brake or roll formed, and have outstanding welding characteristics.

Post-weld annealing is not required, whereas 321 Stainless Steel Tubes is heat resistant, titanium stabilized, austenitic alloy commonly used for service in the 1000 Degree F – 1600 Degree F temperature range. Grade 321 Pipes Tubes is primarily used in applications that involve continuous and intermittent service temperatures within the carbide precipitation range of 800 Degree -1500 Degree F. Stainless Steel 321 Seamless Pipes is similar to SS 304 but with a titanium addition of at least five times the carbon content. This titanium addition in b Stainless Steel 321 Welded Pipes reduces or prevents carbide precipitation during welding. We also offer these products in different sizes and shapes per client’s requirements.

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The basic austenitic 18/8 steel (Grade 304) is stabilised by additions of Titanium (321) or Niobium (347). These grades are used because, when heated within the carbide precipitation range of 425-850 °C, they are not prone to intergranular corrosion.

312 pipe is a general purpose stainless steel pipe that is used in a variety of industries. It accommodates diameters ranging from 1/8" to 30" and thicknesses ranging from SCH 10S to SCH 80S.

Specifications of ASTM A312-A213-A249-TP-321 SS Pipes and Tubes

Specifications ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
Size Seamless 321 Pipes and Tubes - 1/2" NB - 16" NB
ERW 321 Pipes and Tubes 1/2" NB - 24" NB
EFW 321 Pipes and Tubes 6" NB - 100" NB
Wall Thickness Schedule 5S - Schedule XXS.
Dimensions ASTM, ASME and API
Schedule SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120,   SCH140, SCH160, XXS
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Length Single Random, Double Random & Cut Length.
Form Round, Square, Rectangular, Hydraulic Etc.

AISI 321 Equivalent Material

STANDARD WERKSTOFF NR. UNS JIS BS EN EURONORM
SS 321 1.4541 S32100 SUS 321 321S31 58B, 58C X6CrNiTi18-10

SS 321 Chemical Composition

Grade   C Mn Si P S Cr Mo Ni N Other
SS 21 Min - - - - - 17.0 - 9.0 - Ti=5(C+N)
Max 0.08 2.00 0.75 0.045 0.030 19.0 12.0 - 0.10 0.70

321 Stainless Steel Machinability

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Rockwell B (HR B) max (Hardness) Brinell (HB) max (Hardness)
321 515 205 40 95 217

321 Stainless Steel Machinability Price list

Size OD WT FOB Price
(mm) (mm) (usd/ton)
1" SCH 40 33.4 3.38 $665
2" SCH 40 60.3 3.91 $634
2-1/2" SCH 40 73 5.16 $626
3" SCH 40 88.9 5.49 $621
4" SCH 40 114.3 6.02 $612
6" SCH 40 168.3 7.11 $612
8" SCH 40 219.1 8.18 $612
10" SCH 40 273 9.27 $599

321 Stainless Steel Machinability Stock

Outside Diamter, OD (in mm)

Wall Thickness, WT (in mm)

6mm – 630mm

0.5mm-30mm

12.7mm* 12.7mm to 300mm* 300mm

0.5mm-30mm

10*20mm to 100*200mm

0.5mm-30mm

6mm to 630mm

0.5mm-30mm

12.7mm to 250mm

0.5mm-30mm

16mm to 85mm

0.5mm-3.0mm

13mm to 85mm

0.5mm-2.0mm

20mm to 200mm

0.5mm-2.0mm

22mm*0.7mm to 108mm*2.0mm

0.5mm-2.0mm

12.5mm to 203.2mm

1.0mm – 5mm

0.28mm to 10mm

0.08mm – 1.2mm

6mm to 430mm

0.8mm – 30mm

321 Stainless Steel Machinability 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

321 Stainless Steel Machinability Physical

Density 8.0 g/cm3
Melting Point 1454 °C (2650 °F)
Tensile Strength Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset) Psi – 30000 , MPa – 205
Elongation 35 %

321 Stainless Steel Machinability Application

  • Trailers
  • Heat Exchangers
  • Food processing equipment
  • Kitchen benches, sinks, troughs, equipment and appliances
  • construction materials
  • Threaded fasteners
  • Chemical containers, including for transport
  • Automotive trim
  • Architectural applications
  • Railway cars
  • Woven or welded screens for mining, quarrying & water filtration

Other Types of 321 Stainless Steel Pipes and Tubes

  • Stainless Steel 321 Round Pipes
  • Stainless Steel 321 Round Tubes
  • Stainless Steel 321 Square Pipes
  • Stainless Steel 321 Square Tubes
  • Stainless steel 321 Rectangular Pipes
  • Stainless steel 321 Rectangular Tubes
  • ASTM A312 / ASME SA 312 TP 321 SS Pipe
  • ASTM A358 / ASME SA 358 SS 321 EFW Pipes
  • SUS Stainless Steel 321 Pipes and Tubes
  • AISI Stainless Steel 321 Pipes and Tubes
  • 321 Stainless Steel Hollow Section
  • SS UNS S32100 Tubing
  • Stainless Steel 321 Heat Ex-changer Tubes
  • Stainless Steel 321 LSAW Pipes
  • ASTM A269, A213 TP 321 Stainless Steel Tubing
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Pipes and Tubes

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