EN10305-3 Welded Precision Steel Tube

EN10305-3 Welded Precision Steel Tube

EN10305-3 Welded cold sized tubes

The tubes shall be manufactured from steel strip by electric welding. The tubes shall not included welds used for joining of flat rolled strip prior to forming the tube, except for coiled tubes which may be supplied in the delivery conditions +A and +N

Possible surface conditions are :

S1 black

S2 pickled

S3 cold rolled

S4 coated to an agreed condition

Note: The surface conditions S1 and S3 apply for the strip. The surface condition S2 and S4 may apply for the strip or the tube; the purchaser should, where necessary, indicate the condition at the time of enquiry and order.

Tubes made of the steel grade E155 E195 E235 and E355 shall be supplied in the delivery condition +CR1 or +N. Tubes made of the grades E190 E220 E260 E320 E370 and E420 shall be supplied in the delivery conditions +CR2


Our workshop covers an area of 15000 square meters equipped with the state-of-art facilities to manufacture the welded carbon steel tubes and welded-redrawn carbon steel tubes.

Six modernized high frequency welding lines.

Four modernized cold drawn lines.

Five Automatic chamfering machines

Twenty Automatic cutting machines

Two Automatic packing machines

The monthly production capacity is 250,000 meters of welded carbon steel tubes.

The materials are :E215,E235,E255,E355 from Baosteel,Ansteel,Posco,etc, other material can be achieved after discussion.

Mainly sizes:OD from 6.35 to 76.20mm,WT:0.7mm to 3mm.

We have been delivering these tubes to UK,France,Turkey,Germany,Brazil etc for the automotive industry,since 2011.etc.

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