标准 |
GB |
年级 |
Cr-Mo alloy |
出生地 |
China (Mainland) |
Seamless steel tube and pipe for ship building usage Society Standard or usage Steel grade chemical composition, % CSiMnPSCrNiCuAlMoVP+S GLR Non allolyGL-R 410≤ 0.21 ≤ 0.35 ≤ 1.40 ≤ 0.025 ≤ 0.020 ---≥0.020 ---GB 1824837Mn0.34 0.400.10 0.301.35 1.65≤ 0.030 ≤ 0.030 ≤ 0.30 ≤ 0.30 ≤ 0.20 ---≤ 0.055 EN 1029734CrMo40.30 0.37≤ 0.40 0.60 0.90≤ 0.035 ≤ 0.035 0.9 1.20---0.15 0.30--DNV for pressure ASTM A53/A53MA53B≤ 0.30 -≤ 1.20 ≤ 0.050 ≤ 0.045 ≤ 0.40 ≤ 0.40 ≤ 0.40 -≤ 0.15 ≤ 0.08 - ABS for pressureGrade 3≤ 0.30-≤ 1.20≤ 0.050≤ 0.045≤ 0.40≤ 0.40≤ 0.40-≤ 0.15≤ 0.08-BV for pressure 410HB≤ 0.21≤ 0.350.40 1.20≤ 0.040≤ 0.040-------LR for pressure410≤ 0.21≤ 0.350.40 1.20≤ 0.045≤ 0.045≤ 0.25≤ 0.30≤ 0.30-≤ 0.10-- KR for pressureRST138≤ 0.25 ≤ 0.35 0.30 0.90≤ 0.040≤ 0.040-------RST142≤ 0.300.30 1.00≤ 0.040≤ 0.040-------RST238≤ 0.250.10 0.350.30 1.10≤ 0.035≤ 0.035-------RST242≤ 0.300.30 1.40-------RST249≤ 0.330.30 1.50-------RST338≤ 0.25 0.30 0.90-------RST342≤ 0.30 0.30 1.00-------NK for pressuregrade 1 No3/ KSTPG 42≤ 0.30 ≤ 0.35 0.30 1.00≤ 0.040 ≤ 0.040 -------CCS for pressure360≤ 0.17 ≤ 0.35 0.40 0.80≤ 0.040 ≤ 0.040 ≤ 0.25 ≤ 0.30 ≤ 0.30 ≤ 0.10 410≤ 0.21 ≤ 0.35 0.40 1.20≤ 0.040 ≤ 0.040 ≤ 0.25 ≤ 0.30 ≤ 0.30 ≤ 0.10 460≤ 0.22 ≤ 0.35 0.80 1.40≤ 0.040 ≤ 0.040 ≤ 0.25 ≤ 0.30 ≤ 0.30 ≤ 0.10 490≤ 0.23 ≤ 0.35 0.80 1.50≤ 0.040 ≤ 0.040 ≤ 0.25 ≤ 0.30 ≤ 0.30 ≤ 0.10