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DIN 2391 seamless precision steel tubes

DIN 2391 standard specifies the Seamless steel tubes used for Mechanical and Automobile.The main products of steel / steel grade: DIN2391-1(ST35, ST45, ST52).Description Name:DIN 2391 Seamless cold dr...

2023-12-18 15:15:21

DIN 2391 standard specifies the Seamless steel tubes used for Mechanical and Automobile.
The main products of steel / steel grade: DIN2391-1(ST35, ST45, ST52).

DIN 2391 seamless precision steel tubes

Description Name:
DIN 2391 Seamless cold drawn tubes
DIN 2391 Seamless precision steel tubes
ST35 Precision tubes
ST45 Precision tubes
ST52 Precision tubes
Seamless precision tubes
DIN 2391 NBK Seamless Precision Steel Tubes
DIN 2391 ST35 Seamless precision steel tubes
DIN 2391 ST45 Seamless precision steel tubes
DIN 2391 ST52 Seamless precision steel tubes
ST 52 Honed tubes
ST52 cylinder tubes

Size: 6mm-350mm.
W.T.: 0.8mm-50mm.
Shape: Round.
Production type: Cold drawn or cold rolled.
Length: Single random length/ Double random length or as customer’s actual request max length is 10m.
Grade: St30 Si, St30 Al, St35, St45, St52.
Nansteel Manufacturing Co.,Ltd supplies a full range of DIN 2391 seamless precision steel tubes, click to check View of DIN 2391 Dimensional Table

Grade and Chemical Composition(%)

Grade	Chemical Composition(%):
Grade	C max	Si max	Mn	P max	S max
St 35	0.17	0.35	≥0.40	0.025	0.025
St 45	0.21	0.35	≥0.40	0.025	0.025
St 52	0.22	0.55	≤1.60	0.025	0.025

Inspection and test list for the DIN 2391 Standard.

Inspection or test types	Test frequency
Inspection or test types	Internal test	Acceptance test
Chemical analysis	M	M
Tensile testing	M	One per tested batch
Flattening test or extension test	M	Two per tested batch
Dimension verification	M	M
Visual inspection	M	M
NDT in order to identify leaks	Individual	Individual

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