We are leading Stainless Steel 321 Tube Manufacturer in Malaysia, UAE, Ireland, France, Mexico, Hong Kong, Bhutan, Netherlands, Lithuania, Finland, Portugal, Qatar, Iraq, Lebanon, Romania, Libya, Sri Lanka, South Korea, Sweden, Oman, Bulgaria, Mongolia, Japan and more.


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Stainless Steel 321 Tube Manufacturer, 321 Stainless Steel Tubing Supplier, ASME SA312 Stainless Steel 321 Tubes
321 stainless steel tubing is a corrosion-resistant and long-lasting alloy of iron, carbon, and various concentrations of chromium and other elements. Stainless steel is a common option for a wide range of applications in numerous industries because of its high chromium content, which makes it highly resistant to rust and corrosion, even in hostile situations.
Siddhgiri Tubes, based in Mumbai, India, is a prominent Stainless Steel 321 Tube Manufacturer, Supplier & Exporter. As a top stainless steel 321 Tube manufacturer & supplier, we deliver higher pipes in accordance with different international standards. High-pressure equipment, boilers, heat exchanger tubes, air preheaters, steam release pipes, air cooler tubes, steam trap piping, and other applications all require 321 ss Tubes.
Stainless steel 321 Tubes are available in a variety of diameters, shapes, and grades to accommodate various uses. among the popular varieties of 321 stainless steel Tubes are:
Austenitic stainless steel 321 Tubes: The most popular and best at resisting corrosion, these pipes are made of stainless steel. It is frequently utilized in applications that call for high-temperature strength as well as oxidation and scaling resistance.
Ferritic stainless steel 321 Tubes: While less resistant to corrosion than austenitic stainless steel, they are nonetheless appropriate for some applications that do not need for high-temperature strength.
Martensitic stainless steel 321 Tubes: Compared to austenitic and ferritic stainless steel, martensitic stainless steel is more prone to corrosion, yet it is still strong and resilient. It is frequently employed in applications where great strength and wear resistance are necessary.
Stainless Steel 321 Tubing Specifications, Size Chart Table
Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
---|---|
Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Length | Single Random, Double Random & Cut Length. |
Form | Round, Square, Rectangular, Hydraulic Etc |
Specifications | ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358 |
Dimensions | ASTM, ASME and API |
SS 321/321H Pipes | 1/2″ NB – 16″ NB |
ERW 321/321H Pipes | 1/2″ NB – 24″ NB |
EFW 321/321H Pipes | 6″ NB – 100″ NB |
Size | 1/8″NB TO 30″NB IN |
Specialized in | Large Diameter Size |
End | Plain End, Beveled End, Treaded |
321 Stainless Steel Tube Pressure Rating Chart
OD inches | Ave. Wall inches | Min Yield Strength (PSI) | Min Tensile Strength (PSI) | Theoretical Burst Pressure * (PSI) | Working Pressure (PSI) 25% of Burst | Theoretical Yield Point ** (PSI) | Collapse Pressure *** (PSI) |
---|---|---|---|---|---|---|---|
0.250 | 0.020 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
0.250 | 0.028 | 30,000 | 75,000 | 21,649 | 5,412 | 8,660 | 5,967 |
0.250 | 0.035 | 30,000 | 75,000 | 29,167 | 7,292 | 11,667 | 7,224 |
0.250 | 0.049 | 30,000 | 75,000 | 48,355 | 12,089 | 19,342 | 9,455 |
0.250 | 0.065 | 30,000 | 75,000 | 81,250 | 20,313 | 32,500 | 11,544 |
0.375 | 0.020 | 30,000 | 75,000 | 8,955 | 2,239 | 3,582 | 3,029 |
0.375 | 0.028 | 30,000 | 75,000 | 13,166 | 3,292 | 5,266 | 4,145 |
0.375 | 0.035 | 30,000 | 75,000 | 17,213 | 4,303 | 6,885 | 5,077 |
0.375 | 0.049 | 30,000 | 75,000 | 26,534 | 6,634 | 10,614 | 6,816 |
0.375 | 0.065 | 30,000 | 75,000 | 39,796 | 9,949 | 15,918 | 8,597 |
0.500 | 0.020 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,321 |
0.500 | 0.028 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.500 | 0.035 | 30,000 | 75,000 | 12,209 | 3,052 | 4,884 | 3,906 |
0.500 | 0.049 | 30,000 | 75,000 | 18,284 | 4,571 | 7,313 | 5,321 |
0.500 | 0.065 | 30,000 | 75,000 | 26,351 | 6,588 | 10,541 | 6,786 |
0.500 | 0.083 | 30,000 | 75,000 | 37,275 | 9,319 | 14,910 | 8,307 |
0.625 | 0.020 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
0.625 | 0.028 | 30,000 | 75,000 | 7,381 | 1,845 | 2,953 | 2,568 |
0.625 | 0.035 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.625 | 0.049 | 30,000 | 75,000 | 13,947 | 3,487 | 5,579 | 4,335 |
0.625 | 0.065 | 30,000 | 75,000 | 19,697 | 4,924 | 7,879 | 5,591 |
0.625 | 0.083 | 30,000 | 75,000 | 27,124 | 6,781 | 10,850 | 6,910 |
0.625 | 0.095 | 30,000 | 75,000 | 32,759 | 8,190 | 13,103 | 7,734 |
0.625 | 0.109 | 30,000 | 75,000 | 40,172 | 10,043 | 16,069 | 8,639 |
0.750 | 0.028 | 30,000 | 75,000 | 6,052 | 1,513 | 2,421 | 2,156 |
0.750 | 0.035 | 30,000 | 75,000 | 7,721 | 1,930 | 3,088 | 2,669 |
0.750 | 0.049 | 30,000 | 75,000 | 11,273 | 2,818 | 4,509 | 3,664 |
0.750 | 0.065 | 30,000 | 75,000 | 15,726 | 3,931 | 6,290 | 4,749 |
0.750 | 0.083 | 30,000 | 75,000 | 21,318 | 5,330 | 8,527 | 5,905 |
0.750 | 0.095 | 30,000 | 75,000 | 25,446 | 6,362 | 10,179 | 6,637 |
0.750 | 0.109 | 30,000 | 75,000 | 30,733 | 7,683 | 12,293 | 7,453 |
0.750 | 0.120 | 30,000 | 75,000 | 35,294 | 8,824 | 14,118 | 8,064 |
0.875 | 0.020 | 30,000 | 75,000 | 3,593 | 898 | 1,437 | 1,340 |
0.875 | 0.028 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
0.875 | 0.035 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,321 |
0.875 | 0.049 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.875 | 0.065 | 30,000 | 75,000 | 13,087 | 3,272 | 5,235 | 4,126 |
0.875 | 0.083 | 30,000 | 75,000 | 17,560 | 4,390 | 7,024 | 5,152 |
0.875 | 0.095 | 30,000 | 75,000 | 20,803 | 5,201 | 8,321 | 5,807 |
0.875 | 0.109 | 30,000 | 75,000 | 24,886 | 6,221 | 9,954 | 6,543 |
0.875 | 0.120 | 30,000 | 75,000 | 28,346 | 7,087 | 11,339 | 7,100 |
1.000 | 0.028 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
1.000 | 0.035 | 30,000 | 75,000 | 5,645 | 1,411 | 2,258 | 2,027 |
1.000 | 0.049 | 30,000 | 75,000 | 8,149 | 2,037 | 3,259 | 2,796 |
1.000 | 0.065 | 30,000 | 75,000 | 11,207 | 2,802 | 4,483 | 3,647 |
1.000 | 0.083 | 30,000 | 75,000 | 14,928 | 3,732 | 5,971 | 4,567 |
1.000 | 0.095 | 30,000 | 75,000 | 17,593 | 4,398 | 7,037 | 5,159 |
1.000 | 0.109 | 30,000 | 75,000 | 20,908 | 5,227 | 8,363 | 5,827 |
1.000 | 0.120 | 30,000 | 75,000 | 23,684 | 5,921 | 9,474 | 6,336 |
1.000 | 0.134 | 30,000 | 75,000 | 27,459 | 6,865 | 10,984 | 6,963 |
1.250 | 0.035 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
1.250 | 0.049 | 30,000 | 75,000 | 6,380 | 1,595 | 2,552 | 2,260 |
1.250 | 0.065 | 30,000 | 75,000 | 8,705 | 2,176 | 3,482 | 2,958 |
1.250 | 0.083 | 30,000 | 75,000 | 11,485 | 2,871 | 4,594 | 3,719 |
1.250 | 0.095 | 30,000 | 75,000 | 13,443 | 3,361 | 5,377 | 4,213 |
1.250 | 0.109 | 30,000 | 75,000 | 15,843 | 3,961 | 6,337 | 4,776 |
1.250 | 0.120 | 30,000 | 75,000 | 17,822 | 4,455 | 7,129 | 5,207 |
1.250 | 0.134 | 30,000 | 75,000 | 20,468 | 5,117 | 8,187 | 5,742 |
1.500 | 0.035 | 30,000 | 75,000 | 3,671 | 918 | 1,469 | 1,367 |
1.500 | 0.049 | 30,000 | 75,000 | 5,243 | 1,311 | 2,097 | 1,896 |
1.500 | 0.065 | 30,000 | 75,000 | 7,117 | 1,779 | 2,847 | 2,487 |
1.500 | 0.083 | 30,000 | 75,000 | 9,333 | 2,333 | 3,733 | 3,136 |
1.500 | 0.095 | 30,000 | 75,000 | 10,878 | 2,719 | 4,351 | 3,559 |
1.500 | 0.109 | 30,000 | 75,000 | 12,754 | 3,188 | 5,101 | 4,043 |
1.500 | 0.120 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
1.500 | 0.134 | 30,000 | 75,000 | 16,315 | 4,079 | 6,526 | 4,881 |
1.500 | 0.148 | 30,000 | 75,000 | 18,439 | 4,610 | 7,375 | 5,336 |
1.750 | 0.035 | 30,000 | 75,000 | 3,125 | 781 | 1,250 | 1,176 |
1.750 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
1.750 | 0.065 | 30,000 | 75,000 | 6,019 | 1,505 | 2,407 | 2,146 |
1.750 | 0.083 | 30,000 | 75,000 | 7,860 | 1,965 | 3,144 | 2,711 |
1.750 | 0.095 | 30,000 | 75,000 | 9,135 | 2,284 | 3,654 | 3,080 |
1.750 | 0.109 | 30,000 | 75,000 | 10,672 | 2,668 | 4,213 | 3,504 |
1.750 | 0.120 | 30,000 | 75,000 | 11,921 | 2,980 | 4,768 | 3,832 |
1.750 | 0.134 | 30,000 | 75,000 | 13,563 | 3,391 | 5,425 | 4,242 |
1.750 | 0.148 | 30,000 | 75,000 | 15,268 | 3,817 | 6,107 | 4,645 |
1.750 | 0.165 | 30,000 | 75,000 | 17,430 | 4,357 | 6,972 | 5,124 |
2.000 | 0.035 | 30,000 | 75,000 | 2,720 | 680 | 1,088 | 1,032 |
2.000 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
2.000 | 0.065 | 30,000 | 75,000 | 5,214 | 1,303 | 2,086 | 1,887 |
2.000 | 0.083 | 30,000 | 75,000 | 6,788 | 1,697 | 2,715 | 2,387 |
2.000 | 0.095 | 30,000 | 75,000 | 7,873 | 1,968 | 3,149 | 2,715 |
2.000 | 0.109 | 30,000 | 75,000 | 9,175 | 2,294 | 3,670 | 3,092 |
2.000 | 0.120 | 30,000 | 75,000 | 10,227 | 2,557 | 4,091 | 3,384 |
2.000 | 0.134 | 30,000 | 75,000 | 11,605 | 2,901 | 4,642 | 3,751 |
2.000 | 0.148 | 30,000 | 75,000 | 13,028 | 3,257 | 5,211 | 4,111 |
2.000 | 0.165 | 30,000 | 75,000 | 14,820 | 3,705 | 5,928 | 4,542 |
Stainless Steel 321 Tube Chemical Composition Chart
Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
---|---|---|---|---|---|---|---|---|---|
SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Stainless Steel 321 Tube Mechanical Properties Chart
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
---|---|---|---|---|
8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Stainless Steel 321 Tube Available Stock
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14″ NB in Thickness Schedule Seamless Stainless Steel 321 Tube Manufacturer & Suppliers in India | Stainless Steel Seamless 321 Tube Sizes per meter |
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Stainless Steel Hexagonal 321 Tubes Supplier & Manufacturer in India | ASTM A312 TP321H Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India |
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6″ NB in Thickness Schedule Seamless Stainless Steel 321 Tube Manufacturer & Suppliers in India | Schedule 80 SS 321 Tubes Stockist |
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1/2″ NB in Thickness Schedule Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India | ASTM A312 TP321H Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India |
4″ NB in Thickness Schedule Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India | ASTM A312 TP321/321L Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India |
5″ NB in Thickness Schedule Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India | Schedule 40 SS 321 Tubes Supplier & Manufacturer in India |
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18″ NB in Thickness Schedule Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India | Cold Rolled Seamless Stainless Steel 321 Tube Manufacturer & Supplier in India |
Supplier of Stainless Steel 321 Tube all over India
Indian Cities We Supply Stainless Steel 321 Tube | |||||
---|---|---|---|---|---|
Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
Bhubaneswar | Vijaywada | Firozabad | Bokaro Steel City | Rajkot | Bharuch |
Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
Peenya | Pimpri-Chinchwad | Channapatna | Kharagpur | Nashik | Bareilly |
Varanasi | Haldia | Rourkela | Bangalore | Moradabad | Indore |
Visakhapatnam | Trivandrum | Pithampur | Dibrugarh | Angul | Gwalior |
Coimbatore | Kannur | Nagpur | Vadodara | Rudrapur | Noida |
Agra | Bhagalpur | Jamshedpur | Bhilai | Lucknow | Kanpur |
Exporter of Stainless Steel 321 Tube all over the world
Countries We Export Stainless Steel 321 Tube | |||||||
---|---|---|---|---|---|---|---|
Argentina | USA | Saudi Arabia | Nigeria | Russia | India | Syria | Hungary |
Bolivia | Canada | Iran | Algeria | Norway | Singapore | Jordan | Albania |
Brazil | Mexico | Iraq | Angola | Germany | Malaysia | Cyprus | Austria |
Chile | Panama | UAE | South Africa | France | Indonesia | Greece | Switzerland |
Venezuela | Costa Rica | Qatar | Libya | Italy | Thailand | Czech Republic | Slovakia |
Colombia | Puerto Rica | Bahrain | Egypt | UK | Vietnam | Portugal | Finland |
Ecuador | Trinidad And Tobago | Oman | Sudan | Spain | South Korea | Bangladesh | Ireland |
Guyana | Jamaica | Kuwait | Equatorial Guinea | Ukraine | Japan | Mayanmar | Croatia |
Paraguay | Bahamas | Turkey | The Republic Of Congo | Netherlands | Sri Lanka | Taiwan | Slovenia |
Uruguay | Denmark | Yemen | Gabon | Belgium | Maldives | Cambodia | Malta |