Fuel Diesel Injection seamless Steel Pipe
Short Description:
High-pressure oil pipes are components of high-pressure oil circuits. They are required to withstand a certain oil pressure and have a certain fatigue strength to ensure the sealing requirements of the pipelines. Automotive high-pressure oil pipes are mainly used in high-pressure injection diesel engines and high-pressure injection direct injection gasoline engines, and can withstand the oil pressure required during engine operation.
Product Introduction
High-pressure oil pipes are components of high-pressure oil circuits. They are required to withstand a certain oil pressure and have a certain fatigue strength to ensure the sealing requirements of the pipelines. Automotive high-pressure oil pipes are mainly used in high-pressure injection diesel engines and high-pressure injection direct injection gasoline engines, and can withstand the oil pressure required during engine operation.
Chemical Composition
|
Standard |
Steel Grade |
Material Number |
C |
Si |
Mn |
P |
S |
|
DIN 2391 |
ST35 |
1.0308 |
≤0.17 |
≤0.35 |
≥0.04 |
≤0.025 |
≤0.025 |
|
ST45 |
1.0408 |
≤0.21 |
≤0.35 |
≥0.04 |
≤0.025 |
≤0.025 |
|
|
ST52 |
1.058 |
≤0.22 |
≤0.55 |
≤1.60 |
≤0.025 |
≤0.025 |
Mechanical Properties
|
Steel Grade |
BK |
BKW |
BKS |
GBK |
|||||
|
Rm Tensile Strength (Mpa) Min |
A Elongation(%) Min |
Rm Tensile Strength (Mpa) Min |
A Elongation(%) Min |
Rm Tensile Strength (Mpa) Min |
Rel Yield Strength (Mpa) Min |
A Elongation(%) Min |
Rm Tensile Strength (Mpa) Min |
A Elongation(%) Min |
|
|
ST35 |
480 |
6 |
420 |
10 |
420 |
315 |
14 |
315 |
25 |
|
ST45 |
580 |
5 |
520 |
8 |
520 |
375 |
12 |
390 |
21 |
|
ST52 |
640 |
4 |
580 |
7 |
580 |
420 |
10 |
490 |
22 |
Parameters
|
COLD DRAWN SEAMLESS STEEL TUBE |
|||
|
Standards |
Steel Grades |
Size Range |
|
|
DIN |
2391 |
ST35/45/52 |
OD2 - 60mm × WT0.3 -10mm |
|
1629 |
ST37/44/52 |
OD2 - 60mm × WT0.3 -10mm |
|
|
1630 |
ST37.4/44.4/52.4 |
OD2 - 60mm × WT0.3 -10mm |
|
|
2445 |
ST35/ST52/ST37.4//52.4 |
OD2 - 60mm × WT0.3 -10mm |
|
|
73000 |
ST35/45/52/37.4/44.4/52.4 |
OD3 - 30mm × ID 1 - 12.5 mm |
|
|
GB/T |
8162 |
10/20/16Mn/35/45/30CrMo/42CrMo/etc |
OD2 - 60mm × WT0.3 -10mm |
|
8163 |
10/20/16Mn/35/45/30CrMo/42CrMo/etc |
OD2 - 60mm × WT0.3 -10mm |
|
|
3639 |
10/20/16Mn/35/45/30CrMo/42CrMo/etc |
OD2 - 60mm × WT0.3 -10mm |
|
|
3093 |
10/20/16Mn/35/45/30CrMo/42CrMo/etc |
OD3 - 30mm × ID 1 - 12.5 mm |
|
|
EN |
10305-1 |
E215/235/255/355 |
OD2 - 60mm × WT0.3 -10mm |
|
10305-4 |
E215/235/255/355 |
OD2 - 60mm × WT0.3 -10mm |
|
|
10216-5 |
1.4401, 1.4404 |
OD2 - 60mm × WT0.3 -10mm |
|
|
ASTM |
A822-A450 |
A822 |
OD2 - 60mm × WT0.3 -10mm |
|
A179-A450 |
A179 |
OD2 - 60mm × WT0.3 -10mm |
|
|
A519 |
1010/1015/1025/1030/1045/4130/4140/etc |
OD2 - 60mm × WT0.3 -10mm |
|
|
A269 |
304,304L, 316, 316L |
OD2 - 60mm × WT0.3 -10mm |
|
|
SAE |
J524 |
Low carbon steel |
OD2 - 60mm × WT0.3 -10mm |
|
J529 |
Low carbon steel |
OD3 - 30mm × ID 1 - 12.5 mm |
|
|
JIS |
G3445 |
STKM11A/12A/12B/12C/13A/13B/13C/S45C/etc |
OD2 - 60mm × WT0.3 -10mm |
|
G3455 |
STS35/38/42/49 |
OD3 - 30mm × ID 1 - 12.5 mm |
|
|
ISO |
8535 |
ST35/45/52/37.4/44.4/52.4 |
OD3 - 30mm × ID 1 - 12.5 mm |
|
NF |
A49-310 |
TU37b/TU52b |
OD2 - 60mm × WT0.3 -10mm |
|
BS |
3602 |
CFS 360 |
OD2 - 60mm × WT0.3 -10mm |
|
6323(-4) |
CFS2/CFS3/CFS4/CFS5 |
OD2 - 60mm × WT0.3 -10mm |
|
Delivery conditions
BK (+C) BKW (+LC) BKS (+SR) GBK (+A) NBK (+N)
Major Inspection Items: Tensile stength, Yield stength, Elongation, Flattenging, Flaring, Chemical analysis Eddy Current Test.
Size and surface checking.
Certificates: according to EN 10204 3.1
Features
1. Withstand high pressure
2. Good mechanical performance
3. High precision
4. Lower roughness for inner and outer surface
Application Field
1. Automotive Industry: Essential for fuel injection systems in both gasoline and diesel engines, ensuring precise and efficient fuel delivery.
2. Aerospace: Utilized in aircraft engines where high-pressure fuel injection is critical for optimal performance and fuel efficiency.
3. Industrial Engines: Applied in various industrial engines and machinery where precision fuel injection plays a crucial role.
Product Application
