Carbon steel elbow Detailed product description 1) size: 1/2"-24" 2) varieties: sch20, sgp, std, sch40, sch80, sch160 3) standard: ansi b16.9/16.28, astm, api 5l, din2605/2615/2616, jis p2311/2312 asme b36.10m---1996 4) material: astm a234 wpb, carbon steel, low alloy 5) surface treatment: black rust-proof oil, transparent oil, 6) price : very competitive 7) special design available 8)keyword: carbon steel elbow, carbon steel pipe elbow, steel tube elbow 9)application: petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc