EN 10305-2 E275 1.0225, Steel tubes for precision applications Part 2: Welded cold drawn tubes, CDW Steel Tubes, BS 6323-6 CEW 1 E155, BS 6323-6 CEW 2 E195, DIN 2393 RSt34-2 E195, NF A49-341 TS-30a E195, BS 6323-6 CEW 4 E235, DIN 2393 RSt37-2 E235, NF A49-341 TS-34a E235, BS 6323-6 CEW 4 E275, DIN 2393 St44-2 E275, NF A49-341 TS-42a E275, BS 6323-6 CEW 5 E355, DIN 2393 St52-3 E355, NF A49-341 TS-47a E355

EN 10305-2 Steel tubes for precision applications Part 2: Welded cold drawn tubes

Standard: EN 10305-2
Equivalent Standards: DIN 2393, DIN 2394, NF A49-341, BS 6323-6

Material: E275, 1.0225
Equivalent Materials: CEW 4, St44-2, TS-42a

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %
0.21 max	0.35 max	1.40 max	0.025 max	0.025 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Delivery Condition
560 min	-	5 min	+C
510 min	-	8 min	+LC
510 min	375 min	12 min	+SR
390 min	-	21 min	+A
410-550	275 min	21 min	+N

EN 10305-2 specifies the technical delivery conditions for welded cold drawn steel tubes of circular cross section for precision application. It can also be applicable to other types of cross section. Tubes according to EN 10305-2 are characterized by having precisely defined tolerances on dimensions and a specified surface roughness. Typical fields of application are in the vehicle, furniture and general engineering industries.

Manufacture: the tubes shall be manufactured from electric welded pre-tubes by cold drawing or other suitable processes. The tubes shall not include welds used for joining lengths of flat rolled strip prior to forming the pre-tube.
Delivery Condition: cold drawn (hard) as +C, cold drawn (soft) as +LC, cold drawn and stress relieved as +SR, annealed as +A, normalized as +N.
Inspection & Test: chemistry composition analysis, tensile test, flattening test, flaring test, NDT, surface inspection and dimension check.

Length: 5800mm; 6000mm; 10000mm; 11800mm; and so on.
Further process: cutting into short length, deformation, coating.

Keyword: precision steel tube, EN 10305-2, precision steel tube, high precision, cng tube, HPL Tube

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