Stainless Steel 321/321H Tube To Union

Ganpat Metals Pvt Ltd is a well-known firm that exports and stockist a wide range of SS 321 / 321H Tube to Union Fittings, which has better high temperature properties than 304 or 304L. When comparing the chemical structure of Stainless Steel 321 Compression Fittings against standard austenitic grades such as SS 304 / SS 316 the main separating factor is the Titanium content, which is used as a stabalising element allowing the material to operate at a higher temperature range. Stainless Steel 321H Compression Fittings should be neglected to mark within the welding seam zone with oleaginous bolts or temperature indicating crayons. Titanium in Stainless Steel 321 Tube Fittings preferentially reacts with carbon in the steel and prevents precipitation of chromium carbides at the grain boundaries, thus preserving corrosion-resistant properties by preventing depletion of chromium near the grain boundaries during exposure within critical temperature range. Austenitic Stainless Steel 321H Tube Fittings during annealing are heated to fairly high temperatures, typically 1050 Degree C – 1100 Degree C to ensure that all chromium carbides present are dissolved and all of the chromium is taken into solution in the austenite. Stainless Steel 321 Ferrule Fittings is considered resistant to potable water with up to about 200 mg/L chlorides at ambient temperatures, reducing to about 150 mg/L at 60 °C. Stainless Steel 321H Double Ferrule Fittings resists polythionic acid stress corrosion cracking in hydrocarbon service.

Stainless Steel 321/321H Tube to Union Specifications
Specifications	:	ASTM A276 ASME SA 479
Tube Size	:	6mm to 38mm to 1/4″ to 1 1/2″
Thread	:	NPT, BSP, BSPT, UNF, ISO, SAE etc.
Brass	:	ASTM B16 ASTM B 453
Pressure Rating	:	6000PSI for Stainless Steel, 300/1000/3000PSI for Brass