Delivery Time:30 DAYS
Certification:ISO 9000 TS 16949
DIN2391 Precision Seamless Carbon Steel Tube E355 , OD 10mm TH 1.5mm
Tube dimensions for E355 precision seamless carbon tube
OD:4-60mm,WT:0.5-60mm Standard:DIN2391/C,EN10305-4Material:st35,st37,st37.4,st45,st52,st52.4,E235,E355
Delivery Condition:BK,BKW,BKS,NBK,GBK(Bright annealing without oxidization) Length:5800mm,6000mm. Package:Bundles or wooden cases. Surface Anti-rust:Both outside and internal tube surface flushing with anti-rust oil. Surface quality:very smooth and bright without oxide scale,pock,strach,crack and other defects.. Surface Cleaness:clean without iron scrap,dust,better for hydraulic system life. Mechanical Properties:Better extending rate and strength property. Test:Tensile Strength Test,Hardness Test,Chemical Compositon Test Material: Precision tubes are made from carbon steel from quality Bao Steel,XingCheng Steel,and HuaiSteel.Tolerance Table Of Steel Tube
|
NAME |
SCOPE(mm) |
GB (mm) |
DIN (mm) |
Enterprise control(mm) |
Special high-precision(mm) |
|
Out Diameter |
4-30 |
±0.1 |
±0.08 |
±0.05 |
±0.03 |
|
31-40 |
±0.15 |
±0.15 |
±0.05 |
±0.03 |
|
|
41-50 |
±0.20 |
±0.20 |
±0.08 |
±0.03 |
|
|
51-60 |
±0.25 |
±0.25 |
±0.08 |
±0.03 |
|
|
Wall thickness |
0.5-7 |
±10%,Min±0.12 |
±10% |
±10%,Min±0.05 |
±10%,Min±0.03 |
Steel grades for E355 precision seamless carbon tube
|
Standard |
Material |
|
EN10305-1 |
E215, E235, E255, E355,C45E, 30GrMo |
|
DIN2391 |
ST35, ST45, ST52, ST37.4 |
|
DIN1630 |
ST37.4,ST44.4,ST52.4 |
|
BS6323/4 |
CFS3,CFS4,CFS5,CFS8 |
|
ASTMA519 |
SAE1010,SAE1020,SAE1045 |
|
JISG3445 |
STKM11A,STKM13A |
|
SAEJ524 |
SAE1010 |
Delivery condition and heat treatment processing
|
Delivery Condition |
Heat treatment process |
|
+C |
Cold drawn/hard.After the last cold forming,no heat treatment. |
|
+LC |
Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass. |
|
+SR |
Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere. |
|
+A |
After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere. |
|
+N |
Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere. |
Manufacturing:
Synopsis of Process Routing: Qualit
