API SPEC 5CT Seamless Steel Casing

Api spec 5ct seamless steel casing  api spec 5ct seamless steel pipe it is widely used for oil casing and tubing in oil wells specification: o.d.114.30-508mm, w.t. 5.21- 16.13mm. Standard: api 5ct grade: j55, k55, n80, p110, l80, c90, t95 dimension tolerance:  types of steel tubes outer diameter wall thickness cold-rolled tubes tube sizes(mm) tolerances(mm) tolerances(mm) ＜114.3 ±0.79 -12.5% mechanical properties: standard codes models of steel tubes tensite strength(mpa) yield strength(mpa) elongation(%) hardness api spec 5ct j55 ≥517 379~552 check the table   k55 ≥517 ≥655   n80 ≥689 552~758   l80(13cr) ≥655 552~655 ≤241hb p110 ≥862 758~965   chemical composition: standard codes models of steel tubes chemical compositions(%) c si mn p s cr ni cu mo v als api spec 5ct j55k55 (37mn5) 0.34~0.39 0.20~0.35 1.25~1.50 ≤0.020 ≤0.015 ≤0.15 ≤0.20 ≤0.20     ≤0.020 n80 (36 mn2v) 0.34~0.38 0.20~0.35 1.45~1.70 ≤0.020 ≤0.015 ≤0.15       0.11~0.16 ≤0.020 l80(13cr) 0.15~0.22 ≤1.00 0.25~1.00 ≤0.020 ≤0.010 12.0~14.0 ≤0.20 ≤0.20     ≤0.020 p110 (30crmo) 0.26~0.35 0.17~0.37 0.40~0.70 ≤0.020 ≤0.010 0.80~1.10 ≤0.20 ≤0.20 0.15~0.25 ≤0.08 ≤0.020 tubing size designation weight lb/ft outside diameter wall thickness nominal weight type end finish grade nonupset ex-upset mm mm nonupset ex-upset j-55 l-80 n-80 c-90 t-95 p-110 t & c t & c t & c t & c 23/8"