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Help CenterJIS G3461 STB340 ST37 (1.0254) Seamless Carbon Steel Pipe Used for Exchanger Heat
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JIS G3461 STB 340 used for exchanger heat on inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc. of the boiler, and heat exchanger tubes, condenser tubes, catalyser tubes, etc. used in chemical and petroleum industries. However, it is no applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.
JIS G3461 STB 340 Chemical Composition
| Symbol of class | Traditional symbol | C | Si | Mn | P | S |
| STB 340 | STB 35 | 0.18 max | 0.35 max | 0.30 to 0.60 | 0.035 max | 0.035 max |
JIS G3461 STB 340 Mechanical Properties
| Symbol of class | Tensile strength N/mm2 | Yield point or proof stress N/mm2 | Elongation % | ||
| Outside diameter under 10 mm | Outer diameter 10 mm or over to and excl. 20 mm | Outer diameter 20mm or over | |||
| No. 11 test piece | No. 11 test piece | No. 11 test piece No. 12 test piece | |||
| STB 340 | 340 min | 175 min | 27 min | 30 min | 35 min |
JIS G3461 STB 340 Hardness
| Symbol of class | Rockwell hardness HRB (Mean value of three points) |
| STB 340 | 77 max |
Material
Seamless tube/Seamless pipe |
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GB 20G,20MnG,25MnG,15MoG,20MoG,12CrMoG,15CrMoG,12Cr2MoG,12Cr1MoVG, 12Cr2MoWVTiB,12Cr3MoVSiTiB,10Cr9MoVNb,1Cr18Ni9,1Cr18Ni11Nb,10,20,16Mn, 15MnV,10MoWVNb,12CrMo,15CrMo,1Cr5Mo,12Cr2Mo,12SiMoVNb,35,45,Q345,40Mn2, 45Mn2,27SiMn,40MnB,45MnB,20Mn2B,20Cr,30Cr,35Cr,40Cr,45Cr,50Cr,38CrSi,20CrMo, 35CrMo,42CrMo,12CrMoV,12Cr1MoV,38CrMoAl,50CrVA,20CrMn,20CrMnSi,30CrMnSi, 35CrMnSiA,20CrMnTi,30CrMnTi,12CrNi2,12CrNi3,12CrNi4,40CrNiMoA,45CrNiMoVA, etc
NF FN P195GH,P235GH,P265GH,8MoB5-4,10CrMo5-5,10CrMo9-10,11CrMo9-10,13CrMo4-5, 14MoV6-3,15NiCuMoNb5-6-4,16Mo3,20CrMoV13-5-5,20MnNb6,25CrMo4, X10CrMoVNb9-1,X11CrMo5,X11CrMo9-1,X20CrMoV11-1,P215NL,P255QL,P265NL, 11MnNi5-3,12Ni4,13MnNi6-3,26CrMo4-2,X10Ni9,X12Ni5,etc
DIN EN E235,E275,E315,E355,E470,C22E,C35E,C45E,C60E,38Mn6,E275K2,E355K2,E420J2, E460K2,E590K2,E730K2,41Cr4,25CrMo4,30CrMo4,34CrMo4,42CrMo4,30CrNiMo8, 36CrNiMo4,41NiCrMo7-3-2,C10E,C15E,C15R,16MnCr5,16MnCrS5,20CrNiMo2-2, 20NiCrMoS2-2,C35E,C45E,E215,E255,E410,10S10,15S10,18S10,37S10,26Mn5, 26Mo2,etc
ISO P420Q,P420QH,P420QL,P460Q,P460QH,P460QL,P500Q,P500QH,P500QL,P550Q, P550QH,P550QL,P620Q,P620QH,P620QL,P690Q,P690QH,P690QL,TS360,TS410, TS430,TS500,PH23,PH26,PH29,PH35,8CrMo4-5,8CrMo5-5,9NiMnMoNb5-4-4, 11CrMo9-10TA,11CrMo9-10TN-TT,12CrMo6-2,12CrMo4-5,16Mo3,X10CrMoVNb9-1, X11CrMo5TA,X11CrMo5TA,X11CrMo5TA-TT,X11CrMo9-1TA,X11CrMo9-1TN-TT, X12CrMoNV11-1-1,PL21,PL23,PL25,PL26,11MnNi5-3,12Ni4,13MnNi6-3,26CrMo4, X10Ni9,X12Ni5,etc
JIS STC370,STC440,STC510A,STC510B,STC540,STC590A,STC590B,STK290,STK400, STK490,STK500,STK540,SCM415TK,SCM418TK,SCM420TK,SCM430TK,SCM435TK, SCM440TK,SCr420TK,etc
KS STHA 12,STHA 13,STHA 20,STHA 22,STHA 23,STHA 24,STHA 25,STHA 26,etc
SAE/AISI,ASTM 1005,1006,1008,1009,1010,1012,1013,1015,1016,1017,1018,1019,1020,1021,1022,1023, 1025,1026,1029,1030,1033,1035,1037,1038,1039,1040,1042,1043,1044,1045,1046,1049, 1050,1053,1055,1060,1065,1070,1074,1075,1078,1080,1084,1085,1086,1090,1095,1522, 1524,1526,1527,1536,1541,1547,1548,1552,1566,A201 GR.T1,A210 GR.T1a,A209 GR.C, A210 GR.T1b,A209 GR.A-1,A213 GR.T2,A213 GR.T5,A213 GR.T5b,A213 GR.T5c, A213 GR.9,A213 GR.11,A213 GR.12,A213 GR.17,A213 GR.21,A213 GR.22,A213 GR.23, A213 GR.24,A213 GR.36,A213 GR.91,A213 GR.92,A213 GR.122,A213 GR.911,etc |
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Welded tube/Welded pipe |
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GB Q300GNH,Q325GNH,Q355GNH,Q215 A,Q215 B,Q235 A,Q235 B,Q295 A, Q295 B,Q345 A,Q345 B,etc
NF FN P195GH,P235GH,P265GH,16Mo3,P215NL,P265NL,etc
DIN EN E155,E190,E195,E220,E235,E260,E275,E320,E355,E370,E275K2,E355K2,E460K2, E275M,E355M,E420M,E460M,etc
ISO TW320,TW360,TW410,TW430,TW500,PH23,PH26,PH27,PH35,11CrMo9-11,13CrMo4-5, 16Mo3,PL21,PL23,PL25,PL26,11MnNi5-3,13MnNi6-4,12Ni4,X12Ni5,X10Ni9,etc
ASTM A250 GR.T1,A250 GR.T1a,A250 GR.T1b,A250 GR.T2,A250 GR.T11,A250 GR.T12, A250 GR.T22,etc |
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