We are able to design and fabricate steel couplings using qualitative grade of stainless steel and alloy steel in the production process. Our precision engineered steel couplings are widely used in various industries such as engineering, automotive, paper & print, and many more owing to the salient features such as corrosion resistance, high tensile strength and durability. grades: stainless steelastm asme sa 312 gr. Tp 304, 304l, 304h, 309s, 309h, 310s, 310h, 316, 316ti, 316h, 316ln, 317, 317l, 321, 321h, 347, 347h, 904l.Astm asme sa 358 cl 1 & cl 3 gr . 304, 304l, 304h, 309s, 309h, 310s, 310h, 316, 316h, 321, 321h, 47 . Duplex steelastm asme sa 790 uns no s 31803, s 32205, s 32550, s 32750, s 32760. Carbon steelastm asme a 53 gr. A & b, astm a 106 gr. A, b & c. Api 5l gr. B, api 5l x 42, x 46, x 52, x 60, x 65 & x 70.Astm asme a 691 gr a, b & c alloy steelastm asme a 335 gr p 1, p 5, p 9, p 11, p 12, p 22, p 23, p 91astm asme a 691 gr 1 cr, 1 14 cr, 2 14 cr, 5 cr, 9cr, 91 nickel alloyastm asme sb 163 uns 2200 ( nickel 200 )astm asme sb 163 uns 2201 (nickel 201 )astm asme sb 163 165 uns 4400 (monel 400 )astm asme sb 464 uns 8020 ( alloy 20 20 cb 3 )astm asme sb 704705 uns 8825 inconel (825)astm asme sb 167 517 uns 6600 (inconel 600 )astm asme sb 167 uns 6601 ( inconel 601 ) astm asme sb 704 705 uns 6625 (inconel 625) astm asme sb 619622626 uns 10276 ( hastelloy c 276 ) copper alloyastm asme sb 111 uns no. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500.Astm asme sb 466 uns no. C 70600 ( cu -ni- 9010), c 71500 ( cu -ni- 7030) size: 18" nb to 4" nb. (socketweld & threaded) class: 150#, 300#, 600#, 900#, 1500#, 2000#, 3000#, 6000#, 9000#