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SS 321 Reducer Suppliers. Buy SS 321 Reducer at Lowest Prices - ASTM A403 WP321H

SS 321/321H Reducer


SS 321/321H Reducer (Eccentric & Concentric) –  1.4541, UNS S32100, UNS S32109, 1.4878

Leading Manufacturers & Suppliers of SS 321 Reducer in India, with Exports to 60 Countries. Buy Top Quality SS 321 Seamless Reducer, SS 321 Welded Reducer Factory. Metline offers Pipe Reducer, SCH10-SCH80S, Seamless Reducer 1/2-24 Inch, DN15-DN600, Welded Reducer 4-72 Inch, DN150-DN1800.

Marking: METLINE ASTM A403 WP321H SMLS Con. Reducer Heat No. XXXX

Manufacturing Standards:

  • ASME: ASME B16.9,ASME B16.28, MSS SP-75
  • EN: EN10253-1, EN10253-2

ASME B16.9: Factory-Made Wrought Buttwelding Fittings
ASME B16.28: Wrought Steel Buttwelding Short Radius Elbows and Returns
MSS SP-75: Specification for High-Test, Wrough, Butt-welding fittings

Production Range for SS 321/321H Reducer – Seamless & Welded Reducer

Grade Stainless Steel 321 (1.4541, S32100), Stainless Steel 321H (S32109, 1.4878)
Product Stainless Steel 321/321H Reducer
Type Seamless & Welded Reducer, Eccentric & Concentric Reducer
Seamless Reducer 1/2″-24″ DN15-DN600
Welded Reducer 4″-72″, DN150-DN1800
Specification ASTM A403 – Buttweld Fittings
Dimensions ASME B16.9
Test Certificates EN 10204 3.1, 3.2
Approvals & Inspection TUV, GL, ABS, BVQI, SGS, Lloyds
HS Code 7307
Finish Annealed & Pickled, Polished

We are a specialized manufacturer of welded and seamless SS 321 reducer for low or high temperatures, and medium or high pressures. Metline is a largest supplier of ss 321 reducer in India. We are offering excellent products and sincere service, and welcome all our customers.

Contact Us If You are Looking to Buy 321/321H “Reducer”!

Call Us Now +919833604219 or Email Us “sales@metline.in”

An international piping materials supplier, Metline welcomes you to send us your enquiries for stainless steel 321/321H pipes, elbows, fittings & flanges and allow us to partner in your growth. We can assure you the best quality products, with the most competitive prices in the industry.

All pipes supplied by Metline are tested according to requirements of the appropriate standards. In all cases the tube leaking test is performed, and supplied with Test Certificates at per EN 10204 3.1 or NABL approved lab test reports. We focus on each and every customer with a personal touch, making us one of the top supplier of stainless steel pipes & tubes and a reliable business partner for all industrial buyers.


SS 321 Reducer Manufacturers (1.4541, S32100)  | SS 321H Reducer (S32109, 1.4878) – Eccentric & Concentric Reducer Suppliers

Metline is one of the largest manufacturers of ss 321 reducer in size range of 1/2″ NB upto 48″ in seamless, welded and fabricated type. We specialize in the manufacture and supply of large diameter 100% X Ray Welded ss 321 reducer, with shortest delivery times.

Given our extensive expertise and knowledge in stainless steel industry we can offer stainless steel 321 seamless pipes and fittings, at the most competitive prices in the Industry. We are wholesaler for stainless, acid and heat-resistant steel pipes, fittings and flanges with extensive stocks.

Stainless Steel 321 is a basic austenitic 18/8 steel (Grade 304) stabilised by Titanium (321) addition. SS 321 is used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Stainless Steel 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion. SS 321H is a modification of SS 321 with a higher carbon content, to provide improved high temperature strength.

321/321H Stainless Steel Chemical Composition

ELEMENT 321 321H
NI 9.0 – 12.0 9.0 – 12.0
C 0.08 max 0.04 – 0.10
MN 2.0 max 2.0 max
P 0.045 max 0.045 max
S 0.030 max 0.030 max
SI 1.0 max 1.0 max
CR 17.0 – 19.0 17.0 – 19.0
TI 5(C+N) – 0.70 max 4(C+N) – 0.70
N 0.10 max 0.10 max

321/321H Stainless Steel Mechanical Properties

Density 8.0 g/cm3
Melting Point 1454 °C (2650 °F)
Tensile Strength Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset) Psi – 30000 , MPa – 205
Elongation 35%



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