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321 Seamless Stainless Steel Tubes

321 Seamless Stainless Steel Tubes

321 Seamless stainless Steel tubes 1) Specifications ASTM A213/ASTM A269/ASTM A511/JIS, GOST or as per requirements 2) Size Imperial: OD 1/4” - 2-1/2”; WT: above 0.0197” Metric: OD 6-76mm; WT: above 0.5mm 3) Manufacturing Method Cold finish: cold rolling or cold drawing 4) Delivery condition...

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Product Details

Product Description:

Made of heat-strength steel, 321 stainless steel, this kind of  seamless stainless steel tubes is much better than 316L in the respect of high temperature. Its performance is very similar to that of 304, but due to the addition of titanium metal, it has better resistance to intergranular corrosion and high temperature strength. Due to the addition of titanium metal, it effectively controls the formation of chromium carbide. It has good abrasion resistance in organic acids and inorganic acids with different concentrations and different temperatures, especially in oxidizing media.

Features:

  • Excellent high temperature stress breaking performance and high temperature creep resistance stress mechanical properties

  • Excellent resistance to intergranular corrosion

  • Excellent in high temperature strength and high temperature oxidation resistance

  • Excellent forming and welding characteristics

  • Scaling resistance and phase stability

Applications:

  • Furnace components

  • Heat exchangers

  • Mineral processing screens

  • Oil waste gas combustion pipeline

  • Engine exhaust pipe

  • Spiral welded pipe for furnace pipe and dryer,etc.

Product Details:

Standard

ASTM A213/ASTM A269/ASTM A511/JIS, GOST or as per requirements

 Grade

304/304L,316LL,321,317L,310s

Size

Imperial: OD 1/4” - 2-1/2”; WT: above 0.0197”

Metric: OD 6-76mm; WT: above 0.5mm

Manufacturing Method

Cold finish: cold rolling or cold drawing

Delivery condition

Bright annealed (BA)

Annealed and pickled(AP)

Length

6m ~ 12m as customer's requirement

Chemical composition

Material

C(max)

Si(max)

Mn(max)

P(max)

S(max)

Cr

Ni

Ti

TP321

0.080

1.00

2.00

0.045

0.030

17.0-19.0

9.0-12.0

0.7>5x(C+N)

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