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321, 321H Stainless Steel Tube, Pipe, Fittings, Flanges

DataTime:[2014-9-26]
Stainless Steel Tradename UNS no. Werkstoff No. Density (g/cm3)
321 321 Stainless Steel S32100 1.4541 7.92
321H 321H Stainless Steel S32109 1.4878 7.92
Yaang is a leading manufacturer and supplier of stainless steel 321 tubes, pipes, fittings, flanges, bars, fasteners, castings and others.

Stainless Steel Grade 321 is a common austenitic 18/8 stainless steel alloy, with the addition of titanium, making it a good choice in high temperature environments of up to 900°C. 321 stainless steel has good welding and forming capabilities and is widely used in operating temperature environments in excess of 500° C. Stainless steel 321H, commonly referred as UNS S32109, is the higher carbon version of the 321 grade, to provide higher temperature strength.

321/321H stainless steel pipes, stainless steel tubes, stainless steel bar, stainless steel fittings, stainless steel flanges are mainly used in manufacturing heat exchangers, pressure vessels, pharmaceutical and chemical processing equipments. 321 grade plates can be supplied in No. 1 and 2B finish. Other special finishes can also be made available on demand.

Stainless Steel 321/321H Specifications

321/321H Stainless Steel Seamless & Welded Pipe and Tubes: ASTM A312, ASTM A213, ASTM A249

321/321H Butt-weld Stainless Steel Fittings & Flanges: ASTM A403, ASTM A182

321/321H Stainless Steel Forgings: ASTM A182

Stainless Steel 321 Chemical Composition, %

C

Mn

Si

P

S

Cr

Ni

Ti

N

0.08 max.

2.00 max.

0.75 max.

0.045 max.

0.03 max.

17.0 – 19.0

9.0-12.0

5 x (C+N) min.

(0.70max.)

0.10

Stainless Steel 321H Chemical Composition, %

C

Mn

Si

P

S

Cr

Ni

Ti

N

0.04 – 0.10

2.00 max.

0.75 max.

0.045 max.

0.03 max.

17.0 – 19.0

9.0-12.0

5 x (C+N) min.

(0.70max.)

0.10

Physical & Mechanical Properties of Stainless Steel 321

321

Density

7.92

Melting Range,℃

1398-1446

Elongation %

40

Tensile Strength (Mpa)

515

Yield Strength (Mpa)

205

Hardness (Brinell)

217

* Technical specifications included herein should be used as a guideline only

Stainless Steel 321/321H Pipes, Tubes / Tubing, and Butt Weld Fittings

321/321H stainless steel pipes and stainless steel tubes are available in both seamless and welded form in OD and NB sizes. In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size 321/321H cold drawn seamless tubes from our factory.

321/321H stainless steel pipes and stainless steel tubes can be offered in random lengths of up to 6meters long or cut to a specific length as ordered. We also offer a complete range of stainless steel 321/321H grade butt weld fittings including 321 elbow, 321 bends, 321 tees, reducers and caps.

Stainless Steel 321/321H Seamless, Stainless Steel Welded Pipe/ Tube, and Fittings Dimensions

Out diameter Wall thickness Length
321 Pipe NB Sizes 1/4 “ ~ 16” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 Upto 6 Meters
321 Butt Weld Fittings NB Sizes 1/2″ ~ 12” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 -
321 Seamless Pipes (Custom Sizes) 5.0mm ~ 203.2mm As per requirement Upto 6 Meters
321 Welded Pipes (in Stock + Custom Sizes) 5.0mm ~ 1219.2mm 1.0 ~ 15.0 mm Upto 6 Meters

For more information on this source, please visit Yaang Pipe Industry Co., Limited.

Tel No:+86-18267732328 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.

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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.