Tianjin Wanlei Steel Pipe Co., Ltd

JIS G3456 G3454 G3461 carbon steel pipe  Chemical composition StandardgradeChemical Composition %CSiMnPSJIS G3456STPT 3700.25max.0.10~0.350.30~0.900.035 max.0.035 max.STPT 4100.30max.0.10~0.350.30~1.000.035 max.0.035 max.STPT 4800.33max.0.10~0.350.30~1.000.035 max.0.035 max.JIS G3454STPG 3700.25 max.0.35 max.0.30 to 0.900.040 max.0.040 max.STPG 4100.30 max.0.35 max.0.30 to 1.000.040 max.0.040 max.JIS G3461STB350.18Max0.35Max0.30~0.600.035Max0.035MaxSTB420.32Max0.35Max0.30~0.600.035Max0.035MaxSTB520.25Max0.35Max1.00~1.500.035Max0.035MaxMechanical Properties StandardgradeTensile strengthYield pointkgf/mm2 (N/mm2)kgf/mm2 (N/mm2)JIS G3456STPT 37038 (373)min.22(216) min.STPT 41042(412)min.25(245) min.STPT 48049(481)min.28(275) min.JIS G3454STPG 37038 (373)min22(216) minSTPG 41042(412)min25(245) minJIS G3461STB 340340(35)min.175(18) min.STB 410410(42) min.255(26) min.STB 510510(52) min.295(30) min.Hydrostatic Test Hydrostatic Test Pressure Unit : kgf/㎠(bar)Schedule(Sch)102030406080Hydrostatic Test Pressure20 (20)35 (34)50 (49)60 (59)90 (88)120 (118)Remark: 1 bar=105Pa Mark on pipesEach JIS G3456 G3454 G3461 carbon steel pipe having passed the inspection shall be marked with the following items. However, the smaller pipes or other pipes specified by the purchaser may be bundled together and marked for each bundle by a suitable mean. In both cases, the order of arranging the marked items is not specified. When approved by the purchaser, a part of the items may be omitted.1.Standard and grade.2.manufacturing technique.3.Size (diameter, thickness, length).4.Weight.5.Manufacturer’s name or its identifying brand.6.Heat number.7.Other symbol can be made by purchaser’s requestPackingFor JIS G3456 G3454 G3461 carbon steel pipe Surface protect: varnish painting(common protect), hot dipped galvanized, 3LPE (anti-corrosion coating) Ends type: PE(plain ends), BE (bevel ends) Pipe ends protect: plastic ends cap, pipe ends protectorDeliveryEncasement is done by our experienced forklift and crane driver in our factory.