Cold Rolled Welded Steel Tubes

Categories	Precision Tube
Brand	fushun
OD range:	10-150 mm
WT range:	0.3-5 mm
Delivery condition:	Cold Rolled only
Surface condition:	Bright
FOB port	SHANGHAI
Terms of Payment	L/C, D/A, D/P
Update Time	Apr 30,2025

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Detail Information

1. Applications:

Agricultural oil cylinder (<200bar), more fuel-efficient cylinder, stabilizer, load cylinder, steering system.

2. Quality Standards:

EN10305-3 Welded cold size tubes

DIN 2393 Welded Precision Steel Tubes

ASTM A513 Standard Specification for Electric Resistance Welded Carbon and Alloy Steel Mechanical Tubing

3. Steel Grades:

GB Standard: 08, 08F, 08Al, 10#, 20#, Q195, Q235
JIS Standard: SPCC, SPHC
EN Standard: E195, E235, E275, E355
DIN Standard: St12, St37, ST52.3
ASTM Standard: 1010, 1020, 4130

4. Tolerance of Dimensions:

Inner Diameter：H9, H10
Inner surface roughness: Ra 0.80u max

Eccentricity: 3% max

5. Process:

The cold rolled welded tube is produced by rolling ERW (electric resistance welded tube) through a die and over a mandrel plug. During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics.