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Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd.
Zhangjiagang Bonded Area Yaxin Precision Tube Co., Ltd. Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd. Steel Tubing for Automotive Powertrain, Shock Aborber, Steering And Steel Tubing for Heat
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Automotive Cold Drawn Welded Precision Steel Tubing EN10305-2 E195 E235 E355

Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd.
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Automotive Cold Drawn Welded Precision Steel Tubing EN10305-2 E195 E235 E355

Brand Name : YAXIN
Certification : ISO9001, ISO18001, ISO14001, ISO/TS16949
Place of Origin : China
Payment Terms : L/C, T/T
Supply Ability : 5000 metric tons per month
Delivery Time : 15-30 days
Packaging Details : Wooden case
Material : Carbon steel
Type : welded steel tube
tube shape : round
process : cold drawn
application : automotive
Price : Negoniation
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Cold drawn precision welded steel tubes


Standard: EN10305-2, DIN2393

Steel grade: ST37-2, ST52-3, Q235B, Q345B, SAE1010, SAE1020, SAE1026, SAE1045

Other carbon steel grades including alloyed steels and conditions are on request of clients

Delivery condition: +C, +LC, +SR, +A, +N


Application: automotive (shock absorbers, steering system, safety system, air springs).


Chemical composition, %

Material No.C, maxSi, maxMn, maxP, maxS, max
E2351.03080.170.351.200.0250.025
E3551.05800.220.551.600.0250.025

Dimensional range:

OD: Up to 70mm

WT: Up to 3mm

Length: Cut-to-length service is available, minimum to 30mm

Any specific size is to be discussed before offer


The tube be 100% eddy current tested

Ultrasonic test is as option

ID accuracy: H8, H9

Straightness ≤1mm/1000mm

Roughness: Ra ≤0.6


Delivery condition for availability:

+CCold drawn / hard
+LCCold drawn / soft
+SRCold drawn and stress relieved
+ABright annealed
+NBright normalized

The internal and external surface finish of the tubes shall be typical of the manufacturing process and, where applicable, the heat treatment, and it shall be such that any surface imperfections such as ridges, dents or shallow grooves requiring dressing can be identified.


Any surface imperfections, whose depth cannot be clearly identified, or,

  • It shall be permissible to dress, only by grinding or machining, surface imperfections provided that, after doing so, the dimensions are within the specified tolerances. All dressed areas shall blend smoothly into the contour of the tube.
  • Surface imperfections which encroach on the specified minimum wall thickness shall be considered defects.

The tubes shall have smooth outer and inner surface. The roughness Ra shall be:

≤4 μm on the outer and inner surface of tubes in the delivery conditions +C and +LC.

≤4 μm on the outer surface of tubes in the delivery conditions +SR, +A and +N.


The tubes are tested by means of following norms

EN10002-1

EN10233

EN10234

EN10246-1

EN10246-3

EN10246-7


Tubes shall be delivered with square cut ends. The ends are free of excessive burrs.

The tubes are bundled in the waterproof plastic sheet and packed in the wooden cases

The case is most suitable for hanging by forklift.

EN10204-3.1 MTC shall be issued

EN10204-3.2 MTC is as option




Product Tags:

welding round tubing

      

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