Our range of Butt Weld Equal Tee is available in various grades: Stainless steel astm, a403, wp304 / 304l / 304h / 316 / 316l / 317 / 317l / 321 / 310 / 347 / 904l Carbon steel astm, a234, wpb / a420, wpl3 / a420, wpl6 / mss-sp-75, wphy 42 / 46 / 52 / 56 / 60 / 65 / 70 Alloy steel astm a234 wp1 / wp5 / wp9 / wp11 / wp22 / wp91 Other metals offered for making butt weld pipe fittings : monel, nickle, inconel, hastalloy, copper, brass, titanium Size 1/8 nb to 48 nb (seamless & welded) wall thickness -sch. 5s to sch:xxs.