Silver Tubes is a leading trader and manufacturer of Stainless Steel 321 Pipe Fittings / Stainless Steel 321H Pipe Fittings, which are not as corrosion-resistant as the other two classes but are extremely strong and tough, as well as highly machinable, and can be hardened by heat treatment. Stainless Steel 321 Butt Weld Fittings generally has better engineering properties than austenitic grades. Stainless Steel 321 Butt Weld Pipe Fittings has reduced corrosion resistance, because of the lower chromium and nickel content. Stainless Steel 321H Pipe Fittings is a titanium-steadiedform of SS 304, used in specific applications in the sensitizing temprange. Most compositions in Stainless Steel 321H Butt Weld Fittings include molybdenum; some, aluminium or titanium. Stainless Steel 321H Butt Weld Pipe Fittings is not subject to weld decay intergranular corrosion when exposed to mildly corrosive environments.
The resistance to sensitization of SS 321 Pipe Fittings, coupled with its higher strength at high temperature makes it suitable in application where 304 will become sensitized, or where 304L has insufficient hot strength. A limitation with SS 321H Pipe Fittings is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. Alloy 321 Pipe Fittings is a much better option in operating temperature environments in excess of 500 Degree C and therefore has its own merits. Alloy 321H Pipe Fittings offers higher creep and stress rupture properties and also be considered for exposure where sensitization and intergranular corrosion are concern.
|Specifications||ASTM A403 / ASME SA403|
|Dimensions||ANSI B16.9, B16.25, B16.28, MSS-SP-43, MSS-SP-48, MSS-SP-59|
|Size||1/8" NB TO 48" NB.|
|Type||Seamless / Welded(100% X-Ray Welded) / Fabricated|
|Schedule||SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS.|
|Bending Radius||R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom|
|SS 321||S32100||1.4541||X6CrNiTi18-10||SUS 321|
|SS 321H||S32109||1.4878||X12CrNiTi18-9||SUS 321H|
|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|
|Tensile Strength||Yield Strength (0.2%Offset)||Elongation||Hardness|
|Rockwell B (HR B) max||Brinell (HB) max|
|Psi – 75000, MPa – 515||Psi – 30000, MPa – 205||35 %||95||217|
Stainless Steel 321H Long Stub Ends, MSS-SP-48 SS 321H Buttweld Reducer, AISI 321/321H SS End Cap, Stainless Steel 321 Equal Cross, Stainless Steel 321 Piggable Bend, SS 321/321H Collar, ANSI B16.25 Stainless Steel 321H Pipe Cap, SS 321 Weldable Elbow exporter in India, Stainless Steel 321 Lap Joint Stub End Manufacturer, Stainless Steel 321H Butt-Welding Fittings dimensions, 321 SS 90 Degree LR Elbow, ANSI B16.28 SS 321 Short Radius Elbow Supplier in India, 321H Stainless Steel 45 deg SR Elbow, SUS 321/321H Barrel Nipple, UNS S32100 Stainless Steel 180° Long Radius Elbow, UNS S32109 Reducing Cross, DIN 1.4878 Short Stub End, SS 321H Welded Butt weld pipe fittings
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