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SeamlessSteel Tube and Pipe for Boiler and Pressure Vessel

Seamless Steel Tube and Pipe for Boiler and Pressure Vessel

Manufacturing Specification of Seamless Steel Tube and Pipe forBoiler and Pressure Vessel

Grade	Specification			Executive Standard
Grade	Outer Diameter /mm	Wall Thickness /mm	Economical Length/m	Executive Standard
37Mn 37Mn/1 37Mn/2 30CrMo 35CrMo 34CrMo4 34CrMo4/1 34CrMo4/2 34CrMo4A 30CrMoQC 4130X 30CrMoE 42CrMoE	10～127	1～20	6～12.0	GB18248, GB28884 and Technical Protocol
	42～114	3.5～12	6～12.2
	73～180	3.8～22	6～12.2
	68～254	10～55	6～12.2
	140～368	6～42	6～12.2
	318～720	14～120	4～12.5

Seamless Steel Tube for Low and Medium Pressure Boiler

Manufacturing Specification of Seamless Steel Tube for Low andMedium Pressure Boiler

No.	Grade	Specification			Executive Standard
No.	Grade	Outer Diameter/mm	Wall Thickness/mm	Economical Length/m	Executive Standard
1	10, 20	10～127	1～20	6～12.0	GB3087
		42～114.3	3.5～12	6～12.2
		114.3～180	3.8～22	6～12.2
		68～254	10～55	6～12.2
		140～368	6～42	6～12.2
		318～720	14～120	4～12.5

Seamless Steel Tube for High Pressure Boiler

Manufacturing Specification of Seamless Steel Tube for HighPressure Boiler

No.	Grade	Specification			Executive Standard
No.	Grade	Outer Diameter /mm	Wall Thickness /mm	Economical Length/m	Executive Standard
1	20G, 20MnG, 25MnG, 15MoG, 20MoG	10～127	1～20	6～12.0	GB 5310
		42～114.3	3.5～12	6～12.2
		114.3～180	3.8～22	6～12.2
		68～254	10～55	6～12.2
		140～368	6～42	6～12.2
		318～720	14～120	4～12.5
2	12CrMoG, 15CrMoG, 12Cr2MoG 12Cr1MoVG , 30Cr1MoVG, 12Cr2MoWVTiB , 15NiMnMoNbCu 10Cr9Mo1VNbN	10～127	1～20	6～12.0	GB 5310
		42～114.3	3.5～12	6～12.2
		114.3～180	3.8～22	6～12.2
		68～254	10～55	6～12.2
		140～368	6～42	6～12.2
		318～720	14～120	4～12.5

High Pressure Fertilizer Pipe

Manufacturing Specification of High Pressure Fertilizer Pipe

No.	Grade	Specification			Executive Standard
No.	Grade	Outer Diameter/mm	Wall Thickness/mm	Economical Length/m	Executive Standard
1	10, 20	10～127	1～20	6～12.0	GB 6479
		42～114.3	3.5～12	6～12.2
		114.3～180	3.8～22	6～12.2
		68～254	10～55	6～12.2
		140～368	6～42	6～12.2
		318～720	14～120	4～12.5
	16Mn, 15MnV	10～127	1～20	6～12.0	GB 6479
		42～114.3	3.5～12	6～12.2
		114.3～180	3.8～22	6～12.2
		68～254	10～55	6～12.2
		140～368	6～42	6～12.2
		318～720	14～120	4～12.5
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