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Stainless Steel 321 Seamless Pipes & Tubes

We, Divine Metal & Alloys Heat-resisting alloy, Grade 321 belongs to the austenitic class of stainless steel. The chemistry of both stainless steel grade 304 and Stainless Steel 321 Seamless Pipe are similar. The dissimilarity between them lies in the fact that grade 321 has approximately five times more titanium than the content of carbon in alloy 304. By adding titanium to the alloy, the rate of carbide precipitation in ASTM A312 TP 321 ERW Pipe effectively diminishes, especially during welding operations.

Moreover, the rate of decay in the alloy is also reduced even if the SS 321 Welded Pipe has been exposed to a temperature range as high as 800°F to 1500°F. Like most austenitic stainless steel alloys belonging to the 300 series, the content of carbon in the alloy of a UNS S32100 schedule 40 pipe could be increased. While the effect is similar to that of its other austenitic stainless steel counterparts, the mechanical properties of this particular alloy become significantly higher. For one, the creep resisting properties of the ASME SA 312 Grade 321H Square Pipe see an increase.

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Stainless Steel 321 Seamless Pipes & Tubes Manufacturers, Stainless Steel 321 Seamless Pipes & Tubes Suppliers, Stainless Steel 321 Seamless Pipes & Tubes Stockists, Stainless Steel 321 Seamless Pipes & Tubes Exporters


Stainless Steel 321 Seamless Pipes & Tubes Manufacturers in India, Stainless Steel 321 Seamless Pipes & Tubes Suppliers in India, Stainless Steel 321 Seamless Pipes & Tubes Stockists in India, Stainless Steel 321 Seamless Pipes & Tubes Exporters in India

In comparison to both grades 304 and grade 304L, the stress rupture properties as well as, the low-temperature toughness of the 321/321H Stainless Steel Round Pipe are much higher. Dual certification is possible for both grade 321 and 321H, due to its carbon content. The oxidation resistance of DIN 1.4541 Rectangular Pipe is highly appreciated as it can withstand an elevated temperature of 1500°F, without becoming prone to decay by oxidation.

Stainless Steel 321 Seamless Pipes & Tubes Manufacturers in Chennai, Stainless Steel 321 Seamless Pipes & Tubes Suppliers in Chennai, Stainless Steel 321 Seamless Pipes & Tubes Stockists in Chennai, Stainless Steel 321 Seamless Pipes & Tubes Exporters in Chennai


Specification Stainless Steel 321 Seamless Pipes & Tubes

Standard Specification ASTM A 312/ ASME SA 312/ A790/ SA790/ EN10216-5
Size ½” to 6” NB Sch 10s, 40s, & 80s, 160s
Wall Thickness 0.1 - 60 mm
SS Seamless Pipe Length
  • Single Random Length 5to7 mtr
  • Double Random Length 10-12 mtr
Seamless SS Pipe Surface Finish Cold Finish, Bright, Polished, Annealing, Pickling, or as per client requirements
Standard JIS, AISI, ASME, ASTM, AMS, GB, DIN, EN, GOST
Manufacturing types Seamless, Welded, ERW, EFW
Manufacturing Shapes Round, Square, Rectangle, Box Section
Manufacturing Technology Hot / Cold Formed
Other Grades SS 446
Inspection, Test Reports EN 10204 3.1, Mill Test Certificates, PMI Test Reports, Chemical Reports, Mechanical Reports, NABL Approved Lab Reports, Visual Inspection Reports, Destructive and Non Destructive Test Reports, Third Party Inspection
Technique Cold Rolled Hot Rolled

Chemical Properties Stainless Steel 321 Seamless Pipes & Tubes

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

Mechanical Properties Stainless Steel 321 Seamless Pipes & Tubes

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10

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