天宏钢铁(香港)有限公司
TIANHONG STEEL (HONG KONG) LIMITED

Gas Cylinder Tube
ABUIABACGAAg1_yasgYo3KX6xwQw-AI4_gE

Steel Grade:37Mn、34Mn2V、30CrMo、35CrMo、34CrMo4、30CrMnSiA、STH11、STH12、STH21、STH22、STH31

Standard:GB 18248、JIS G3429、ASTM A372、ISO 11120

Application:It is for cylinders and accumulator shell.

Sizes:O.D.:Φ48.3mm~914mm , W.T.:2.5mm~35mm



Chemical Composition,Mass Fraction(%):

StandardSteel GradeChemical Composition
CSiMnP、SCuNiMoCrV
GB 1824837Mn0.34~0.400.10~0.301.35~1.65≤0.0300.200.30/0.30/
34Mn2V0.30~0.370.17~0.371.40~1.750.0300.200.30/0.300.07~0.12
30CrMo0.26~0.340.17~0.370.40~0.700.0300.200.300.15~.250.80~1.10/
35CrMo0.32~0.400.17~0.370.40~0.700.0300.200.300.15~0.250.80~1.10/
JIS G3429STH110.500.10~0.351.800.035/////
STH120.30~0.410.10~0.351.35~1.700.030/////
STH210.25~0.350.15~0.350.40~0.900.030/0.250.15~0.300.80~1.20/
STH220.33~0.380.15~0.350.40~0.900.030/0.250.15~0.00.80~1.20/




Mechanical Properties:

StandardSteel Grade

Tensile Strength(MPa)

Yield Strength (MPa)Elongation         (%)
GB 1824837Mn≥750≥630≥16
34Mn2V≥745≥530≥16
30CrMo≥930≥785≥12
35CrMo≥980835≥12




Approximate Comparison Table of Domestic and Foreign Brands:

GB 18248JIS G 3429ISO 11120EN 10297-1ASTM A372DOT 49
37Mn

STH11

STH12

/38Mn6Grade C

Inter-mediate

manganese

34Mn2V

STH11

STH12

////
30CrMoSTH21Group II30CrMo4Grade E4130X
35CrMoSTH22Group II34CrMo4//
34CrMo4STH22Group II34CrMo4//
30CrMnSiA/////


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