The SS 321 / 321H Pipe Fittings is designed and supplied by Max Steel in most affordable rates. These pipes fittings is made as per the given specifications and dimensions by the client side. These pipe fitting used in domestic as well as commercial applications for various purposes. This fitting is designed as per compliance with the national and international standards. It is widely acclaimed by our customers for their precise design, accurate dimensions, durability, superior finish, and resistant to corrosion. Before start manufacturing, we procure each and every specific detail from our customers at provided them the finest quality of pipe fitting as per their requirement.
The SS 321/ 321H is austenitic stainless steel that has little addition of titanium alloy. The presence of titanium reduces the risk of carbon precipitation during the time of welding. This grade of steel widely used in high-temperature applications and it also provides higher temperature strength. This grade of SS has good forming and welding properties, it can easily cut and fabricate into any desired length. The SS 321 H also refer as UNS S32109.
The main benefits behind using SS 321 / 321H Buttweld Pipe Fittings is that it offers good creep strength, excellent resistance to oxidation and corrosion, readily formed and drawn, improved resistance to intergranular corrosion, and more.
This pipe is carefully supplied without any kind of defect or an external defect. Mostly pipe fitting is the foil in plastic wraps and packed in wooden case or boxes to prevent it from rust. Place your order from Max Steel to get best quality pipe fitting.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4878 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
ASME B16.9 - The ASME B16.9 specification covers the dimensions and the tolerances of stainless and alloy butt weld fittings.
ASME B16.28 - ASME B16.28 Standard covers ratings, overall dimensions, testing, tolerances, and markings for wrought carbon and alloy steel buttwelding short radius elbows and returns.
MSS-SP-43 - This Standard Practice covers only fittings made for use with Schedule 5S or 10S pipe, for all NPS sizes listed in ASME B36.19M, except that for short pattern stub ends suitable for use with Schedule 40S are also shown.
ASTM A403 - This specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications.
| 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 |
| 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 % |
Corrosion resistant
Durable functioning
Malleable
Heat resistance
High strength
Excellent conductivity
Impeccable finish
Enhanced service life
Precisely designed
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