20MnG steel pipe is a type of steel pipe commonly used in high temperature and high pressure applications, commonly used in boilers, heat exchangers and other high temperature and high pressure equipment.

standard:GB

Surface :1. Galvanized 2. Black and Color Painting

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introduction

The chemical composition of 20mnG steel pipes includes but is not limited to carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S, chromium Cr, nickel Ni and copper Cu. The contents of these elements in the chemical composition vary, with carbon ranging from 0.17 to 0.24, silicon ranging from 0.17 to 0.37, and manganese ranging from 0.7 to 1.00. In addition, the content of phosphorus and sulfur does not exceed 0.03 and 0.03 respectively, the content of chromium does not exceed 0.15, the content of nickel does not exceed 0.25, and the content of copper does not exceed 0.20. The 20mnG boiler tube performs well in terms of mechanical properties, and its tensile strength ≥ 415MPa, yield limit ≥240MPa, elongation ≥22%.

Technical Data

Chemical composition of GB 5310 20MnG

Steel Pipe	Chemical Composition(%)
	C	Si	Mn	Cr	Mo	V	Ni	Cu	P
									Max
20MnG	0.17～0.23	0.17～0.37	0.70～1.00	≤0.25	≤0.15	≤0.08	≤0.25	≤0.20	0.025

Mechanical properties of GB 5310 20MnG

Steel Pipe	Tensile properties				Impact energy(Akv)，J		Hardness
	Tensile strength (MPa)	Yield Strength (MPa)	Elongation %		Portrait	Landscape	A	B	C
							HBW	HV	HRC
			Portrait	Landscape
		Max					Min
20MnG	≥415	240	22	20	40	27	—	—		—

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FAQ
Q.Can you provide samples?
A. Yes, free samples are available for regular sizes, but buyers need to pay the shipping cost.
Q.Can you arrange delivery for us?
A. Yes, we have appointed sea and railway freight forwarders, we get the best price and earlier shipment and professional service.
Q.What is DIN 2448?
A.DIN 2448 is a standard that gives specifications for seamless carbon steel pipes and tubes including conventional masses per unit length, dimensions, couplings in addition to weights.