|Place of Origin:||China|
|Certification:||ISO9001, ISO18001, ISO14001, ISO/TS16949|
|Packaging Details:||Wooden case|
|Delivery Time:||15-30 days per month|
|Payment Terms:||L/C, T/T|
|Supply Ability:||5000 metric tons per month|
|Material:||Carbon Steel||Type:||Welded Steel Tube|
|Process:||Cold Drawn||Tube Shape:||Round|
Precision steel tubes for hollow piston rods of shock absorbers
Type: Cold drawn precision seamless carbon steel tube, cold drawn precision welded carbon steel tube
Standard: EN10305-1, EN10305-2
Steel grade: E355, SAE1035, SAE1045, 20Mn2
Delivery condition: +C, +SR
Application: hollow piston rods of shock absorbers for cars and trucks
Other steel grades and conditions are on request of clients
OD: Up to 40mm
WT: Up to 5mm
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
Roughness: Ra ≤0.6
Delivery condition for availability:
|+C||Cold drawn / hard|
|+LC||Cold drawn / soft|
|+SR||Cold drawn and stress relieved|
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,
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
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