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Home > Steel Pipe> DIN 17175 St45.8 Seamless Carbon Steel Boiler Pipe

DIN 17175 St45.8 Seamless Carbon Steel Boiler Pipe

Standard : DIN 17175

Grade: St45.8

Chemical Composition: Mechanical Property

OD:10.2-711mm WT:1.6-100mm

length:5.8m,6m,11.8m,12m or random length

DIN 17175 ST45.8 Tubes DIN 17175 St45.8 Steel Pipe Specification DIN 17175 $T45.8 Tubes Manufacturer, Supplier DIN 17175 ST35.8 Alloy Steel Pipes & Tubes DIN 17175 ST35.8 1.0305 Heat Resistant Seamless Steel Pipe

Introduction
Parameters
Service

DIN 17175 St45.8 Seamless Carbon Steel Boiler Pipe Supplier and Exporter

DIN 17175 St45.8 Seamless Steel Tubes can be used to manufacture steam boilers, pipes, pressure vessels and instruments operating at temperatures up to 600 ° C and at high temperatures.DIN 17175 St45.8 seamless steel tubes are commonly used in the construction of power plants, refineries, and various industrial plants. The St45.8 designation indicates that these tubes have a minimum yield strength of 255 MPa and a minimum tensile strength of 410 MPa. DIN 17175 St45.8 seamless steel tubes are produced according to the DIN 17175 standard, which specifies the technical delivery conditions for seamless tubes made of heat-resistant steels. The tubes are characterised by their high thermal conductivity, excellent service life, and resistance to high temperatures and pressures. DIN 17175 St45.8 seamless steel tubes are available in various sizes and thicknesses to meet different application requirements.

Application

DIN17175 ST45-8 boiler steel pipe is mainly used in Structural pipe,fuid pipe,boller pipe,dnll pipe,oil and gas,hydraulic pipe etc.

Equivalent of ST45.8 Heat Exchanger Tubes

Euro standard	P255
Steel grade equivalent	German (DIN): St45.8 Poland (PN): K18 Europe (EN): P255

Specification Parameters

Basic Information

Heat treatment temperature of DIN 17175 St45.8 Seamless Steel Tubes

Steel Grade		Thermal processing ℃	Normalizing℃	Tempering
Grade	Material number	Thermal processing ℃	Normalizing℃	Quenching temperature ℃	Tempering temperature ℃
St45.8	1.0405	1100 to 850°C	870-900	–	–

Chemical composition of DIN 17175 St45.8

Standard:DIN 17175	grade	Chemical composition
	grade	C	Si	Mn	P、S	Cr	Mo
	St45.8	≤0.21	0.10-0.35	0.40-1.20	≤0.030	/	/

Mechanical property of DIN 17175 St45.8

Standard	grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)
DIN 17175	St45.8	410-530	≥255	≥21

Dimensions Tolerance

Project	Standard		Size range		Tolerance
Outer diameter	DIN17175		Hot rolled steel pipe	OD ≤ 100mm	± 0.75%( Min ± 0.5mm )
				OD＞ 100~ 320mm	± 0.9%
			Cold drawn steel pipe OD ≤ 120mm		± 0.6%( Min ± 0.25mm )
Wall thickness	DIN17175	OD ≤ 130mm	WT ≤ 2Sn		+15%~-10%
			WT ＞ 2Sn~4Sn		+12.5%~-10%
			WT ＞ 4Sn		± 9%
		130 ＜ OD ≤ 320mm	WT ≤ 0.05OD		+17.5%~-12.5%
			0.05OD ＜ WT ≤ 0.11OD		± 12.5%
			WT ＞ 0.11OD		± 10%

Service Support

DIN 17175 St45.8 Seamless Carbon Steel Boiler Pipe

Test

Chemical composition verification test
hydrostatictest
Tensile test
Notched impact test
Yield strength test
Ring test
Nondestructive testing

Package and Shipping

There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.

Plastic caps plugged at the two sides of pipe ends
Should be avoided by the steel strapping and transport damage
Bundled signs should be uniform and consistent
The same bundle(batch) of steel pipe should be came from the same furnace.
The steel pipe has the same furnace number, the same steel grade, the same specifications.

Our packing can meet any needs of the customers.

GNEE GROUP

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DIN 17175 St45.8 Seamless Carbon Steel Boiler Pipe

DIN 17175 St45.8 Seamless Carbon Steel Boiler Pipe Supplier and Exporter

Application

Equivalent of ST45.8 Heat Exchanger Tubes

Heat treatment temperature of DIN 17175 St45.8 Seamless Steel Tubes

Chemical composition of DIN 17175 St45.8

Mechanical property of DIN 17175 St45.8

Dimensions Tolerance

Test

Package and Shipping