不锈钢管执行标准ASTM A312/A312M
standard ASTM A312/A312M ASTM A249/A249M ASTM A688 JIS G3468 item material TP304 TP304 TP304 SUS 304TPY TP304L TP304L TP304L SUS 314LTPY TP316 TP316 TP316 SUS 31TPY TP316L TP304L TP316L SUS 316LTPY TP321 TP321 TP321 SUS 321TPY Spec. range(mm) 10.3≤D≤1219.2 D≤127 15.9< D≤25.4t≥0.7 165.2≤D≤1016 yield strength Rp0.2(Mpa) ≥170; ≥205 ≥170; ≥215 ≥170; ≥205 ≥175; ≥205 tensile strength Rm(Mpa) ≥480; ≥515 ≥485;≥515 ≥485; ≥515 ≥480; ≥520 elongation rate A5(%) ≥35 ≥35 ≥35
