DIN 2391 , ISO 8535 , EN 10305 High Precision Cold Drawn Seamless Tubes As Auto Fuel Pipe
Specifications
Withstand high pressure
auto fuel pipe (DIN 2391, ISO 8535, EN 10305 high precision cold drawn seamless tubes)
Production range: OD from 4mm to 120mm; wall thickness up to 10mm
Steel grades:
Standard Tubes |
||
Standards |
TDR Standards |
Steel Grades |
DIN |
1629 |
ST 37 / 44 / 52 |
ISO |
8535 |
ST 35 / 45 / 52 |
EN |
10305-1 |
E215/235/355/255 |
ASTM |
A 519 |
1010 |
BS |
BS 6323 |
CFS3 |
NFA |
49310 |
TU 37 b |
Many other steel grades and customized – modified steel grades are available on request
Delivery conditions: Precision tubes are delivered in following conditions (first symbol lists previous
designation, the new one according to EN is in brackets):
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked).
After last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized.
After the final cold forming process the tubes are annealed above the upper transformation point in a
controlled atmosphere.
Tests: 100% Eddy current test, chemical and mechanical tests
Certificates: according to EN 10204 3.1
Packing: tubes are supplied in round bundles; packing in boxes or special packing for container shipment
are available on request
Sizes in use:
Others sizes available as customer required.
Standard applied: