Name: China Customized GB 5310 20G Carbon Steel Pipe Manufacturers Suppliers Factory - Quotation - GNEE Pipe
Brand: GNEE
SKU: 230128605

GB 5310 20G Carbon Steel Pipe

GB 5310 20G carbon steel pipe is a 20G carbon steel pipe produced according to the GB/T5310-2017 standard. It is mainly used in the manufacture of high-pressure equipment such as high-pressure boilers.

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20G steel pipe is a kind of high-quality carbon structural steel. It is mainly used to make some high-pressure or high-parameter boiler pipe fittings, superheaters and reheaters in the low-temperature section, etc.
The use temperature of 20G carbon steel pipe is best controlled below 450 degrees Celsius, because graphitization will occur if used above 450 degrees. If used below 450 degrees, the oxidation resistance, toughness, plasticity, weldability and hot and cold processability will be reduced. It's relatively good.
The mechanical properties of 20G boiler tubes are better than those of Q235 material, so the price is relatively high. 20g steel is generally used in places with high tensile and impact resistance requirements.

Chemical composition of GB 5310 20G High Pressure Boiler Tubes

Grade	Chemical Composition(%)
	C	Si	Mn	Cr	Mo	V	Ni	Al_tot	Cu	P
										Max
20G	0.17～0.23	0.17～0.37	0.35～0.65	≤0.25	≤0.15	≤0.08	≤0.25	≤0.015	≤0.20	0.025

Mechanical properties of GB 5310 20G Boiler Tubes

Steel Pipe	Tensile properties				Impact energy(A_kv),J		Hardness
	Tensile strength (MPa)	Yield Strength (MPa)	Elongation %		Portrait	Landscape	A	B	C
							HBW	HV	HRC
			Portrait	Landscape
		Max					Min
20G	410～550	245	24	22	40	27	-	-		-

GB 5310 20G round carbon steel tube

GB 5310 20G Carbon Steel Pipe

The specifications of 20G high-pressure boiler tubes are generally 48-457mm in outer diameter, 3.6-65mm in wall thickness, and 4-12m in length. Depending on the use environment, different specifications can be selected.

GNEE company specializes in the production of seamless steel pipes, seamless steel square pipes, seamless steel oval pipes, welded steel pipes, large diameter steel pipes and carbon steel plates and sheets, as well as galvanized products of all carbon steel materials. The products are widely used in petroleum, chemical industry, Medicine, food, electric power, shipbuilding, environmental protection, boiler heat exchangers and other fields. The company's annual production capacity is 15,000 tons of galvanized steel seamless pipes.

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