Katariya Steel

Stainless Steel 321 / 321H Pipe Fittings Manufacturer

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Katariya Steel is a prominent supplier of Stainless Steel 321/321H Pipe Fittings of the best quality. We are trusted by thousands of customers all across the world. All our products are made with premium quality raw materials and are designed by world-class craftsmen.

Stainless Steel 321/321H Pipe Fittings are made of a stabilised stainless alloy that has high intergranular corrosion resistance when exposed to temperatures in the chromium carbide precipitation range of 800 to 1500°F. The inclusion of titanium in the Alloy of 321 Stainless Steel 321/321H Pipe Fitting prevents chromium carbide production. Because of its strong mechanical qualities, Stainless Steel 321/321H Pipe Fittings are also suitable for high-temperature applications.

SS 321 Pipe Fittings, Stainless Steel 321 Buttweld Fittings, 321 Stainless Steel Buttweld Fittings, Stainless Steel 321 Pipe Fittings, Stainless Steel 321 Seamless Pipe Fittings Stockist, UNS S32100 Pipe Fittings, 321 SS Butt weld Fittings, Stainless Steel 321 Pipe Fittings Manufacturer In Mumbai, India.

Stainless Steel 321H Pipe Fittings have a higher carbon content. they are used in applications requiring improved creep resistance and strength at temperatures above 1000 degrees Fahrenheit. stainless Steel 321/321H Pipe Fittings have better creep and stress rupture qualities than stainless Steel 304/304L Pipe Fittings which could be used in situations where sensitization and intergranular corrosion are a problem.

Stainless Steel 321/321H Pipe Fittings have equivalent general corrosion resistance to Stainless Steel 304/304L Pipe Fittings. It was created for usage in the temperature range of 1800–1500°F, where unstabilized alloys like 304 are vulnerable to intergranular attack. Stainless Steel 321/321H Pipe Fittings can be used in most diluted organic acids at moderate temperatures, pure phosphoric acid at lower temperatures, and up to 10% diluted solutions at higher temperatures. Stainless Steel 321/321H Pipe Fittings resist acid stress corrosion cracking. It can also be employed in chloride or fluoride-free caustic solutions at low temperatures. Stainless Steel 321/321H Pipe Fittings are commonly used in applications involving aerospace, chemical processing, food processing, petroleum refining, waste treatment and pharmaceutical production.

SS 321H Pipe Fittings, ASTM A403 WP321H Pipe Fittings, ASME SA403 WP321H Buttweld Fittings, ANSI B16.9 Stainless Steel 321H Buttweld Fittings, SS 1.4878 Buttweld Fittings, 321H Stainless Steel Pipe Fittings Suppliers, Stainless Steel 321H Pipe Fittings Supplier in India.

Specification For SS 321 / 321H Pipe Fittings

SS 321/321H Pipe Fittings Standard ASTM A403 / ASME SA403
SS 321 & 321H Pipe Fitting Dimensions ANSI B16.9, B16.25, B16.28, MSS-SP-43, MSS-SP-48, MSS-SP-59
SS 321/321H Buttweld Fittings Schedule SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS
Stainless Steel 321/321H Pipe Fittings Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
SS 321-321H Pipe Fittings Size Range Seamless Butt Weld Fittings : 1/2" - 10"
Welded Fittings : 1/2" - 48"
ASTM A403 WP321 / 321H Pipe Fittings Manufacturing process Push, Press, Forge, Cast, etc.
Packing of Products Wooden Pallet, Canton, Carton / Small Box or as required, or as per Customers Requests

Equivalent Grades Of Stainless Steel 321 / 321H Pipe Fittings

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

SS 321 / 321H Pipe Fittings Chemical Composition

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

321 / 321H SS Pipe Fittings Mechanical Properties

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 %

Ready Stock Of Stainless Steel 321 / 321H Pipe Fittings Supplier

  • 321H Stainless Steel Pipe Fittings
  • SS 321 SR Elbow
  • ASTM A403 WP 321H Stainless Steel Lateral Tee
  • 321H Stainless Steel 180° LR Return Bend
  • Stainless Steel 321 Weldable 1.5D Elbow
  • Stainless Steel 321H Eccentric Reducer
  • 321 Stainless Steel LR Elbow
  • SS 321 Buttweld Equal Cross
  • SS 1.4541 Lap joint Stub Ends
  • SS 321H 90° Seamless Elbow
  • ASME B16.9 Stainless Steel 321H Pipe Nipple
  • Stainless Steel 321H Barred Tee
  • Stainless Steel 321 Reducing Tee
  • SS Gr 321 Industrial Pipe Fittings
  • SS 321 Welded Lateral Tee
  • Stainless Steel 321H 10D Elbow
  • 321H Stainless Steel End Pipe Cap
  • UNS S32109 Stainless Steel Swage Nipple
  • Stainless Steel S32100 Buttweld Fittings
  • SS 1.4878 Short Radius Elbow
  • 321 Stainless Steel Reducing Nipple
  • Type 321 Stainless Steel Seamless Pipe Fittings

Stainless Steel 321 / 321H Pipe Fittings Dimensional Tolerances

(1) Out-of-round is the sum of absolute values of plus and minus tolerance. 
(2) The inside diameter at ends and the nominal wall thicknesses are to be specified by the purchaser. 
 IN ACCORDANCE WITH ASME B16.9 – B16.28 
All Fittings
90°and 45° Ells and Tees Reducers and Lap Joint Stub Caps 180° Returns Angularity Tol
Nominal Pipe Plane Size (NPS) Outside(1) Diameter at Bevel Inside(1) Diameter at End Wall(2) Thickness Centre-to- End Dimension A,B,C,M Overall Length L Overall Length E Centre-to- Centre Dimension O Back-to- Face Dimension K Alignment at Ends U Nominal Pipe SIze Off Angle Q Off Angle P
1/2 TO 2-1/2 +1/16 ±1/32 Not less than 87-1/2% of Normal Thickness ±1/16 ±1/16 ±1/8 ±1/4 ±1/4 ±1/32 12 to 4 1/32 1/16

-1/32






5 to 8 1/16 1/8
3 TO 3-1/2 ±1/16 ±1/16 ±1/16 ±1/16 ±1/8 ±1/4 ±1/4 ±1/32 10 to 12 3/32 3/16
4 ±1/16 ±1/16 ±1/16 ±1/16 ±1/8 ±1/4 ±1/4 ±1/32 14 to 16 3/32 1/4
5 TO 8 +1/32 ±1/16 ±1/16 ±1/16 ±1/4 ±1/4 ±1/4 ±1/32 18 to 24 1/8 3/8

-1/16









10 TO 18 +1/16 ±1/8 ±3/32 ±3/32 ±1/4 ±3/8 ±1/4 ±1/16  All dimensions are in inches 

-1/8






20 TO 24 +1/4 ±3/32 ±3/32 ±3/32 ±1/4 ±3/8 ±1/4 ±1/16

-3/32






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Stainless Steel 321-321H Pipe Fittings Applications and Uses

Aerospace Industry

Oil & Gas Industry

Petrochemical Industry

Construction Industry

Mining Industry

Domestic Supply of Stainless Steel 321 / 321H Pipe Fittings

  • Thane
  • Pune
  • Indore
  • Chennai
  • Nagpur
  • Ludhiana
  • Ranchi
  • Rajkot
  • Hyderabad
  • Kolkata
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  • Surat
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  • Gurgaon
  • New Delhi
  • Noida
  • Faridabad
  • Navi Mumbai
  • Jamshedpur
  • Ahmedabad
  • mumbai
  • Ernakulam
  • Kanpur
  • Bhopal
  • Chandigarh
  • Bengaluru
  • Visakhapatnam
  • Thiruvananthapuram
  • Pimpri-Chinchwad
  • Nashik

International Supply of Stainless Steel 321 / 321H Pipe Fittings

  • India India
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  • Germany Germany
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  • Tobago Tobago
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  • Sri Lanka Sri Lanka
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