EN 10297-1 42CrMo4 1.7225 Seamless circular steel tubes for mechanical and general engineering purposes Part 1: Non-alloy and alloy steel tubes

EN 10297-1 Seamless circular steel tubes for mechanical and general engineering purposes Part 1: Non-alloy and alloy steel tubes

Standard: EN 10297-1

Material: 42CrMo4, 1.7225

Chemistry Composition

C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Mo, %
0.38-0.45	0.60-0.90	0.035 max	0.035 max	0.40 max	0.90-1.20	0.15-0.30

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %
1100 min	900 min	10 min

Outside Diameter & Tolerance

Outside Diameter, mm	Tolerance
OD≤219.1	±1% or ±0.5mm
OD>219.1	±1%

Wall thickness & Tolerance

Outside Diameter, mm	WT/OD	Tolerance
OD≤219.1	WT/OD≤2.5%	±12.5% or ±0.4mm
	2.5%＜WT/OD≤5%
	WT/OD>5%
OD>219.1	WT/OD≤2.5%	±20%
	2.5%＜WT/OD≤5%	±15%
	WT/OD>5%	±12.5%

EN 10297-1 specifies the technical delivery conditions for seamless circular tubes made of non-alloy and alloy steels for mechanical and general engineering purposes.

Manufacture: tubes to EN 10297-1 shall be manufactured by a seamless process.
Heat Treatment: the tubes shall be supplied in quenching + tempering (+QT) delivery condition.
Inspection & Test: chemistry composition analysis, tensile test, flattening test, NDT, surface inspection and dimension check. Option: impact test, hardness test.

Length: 4000mm; 5800mm; 6000mm; 11000mm; and so on.
Max developed length: 16 meters, cutting process can be provided.

Keyword: EN 10297-1, mechanical tubing, seamless steel pipe

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