SAE J526 Welded Low Carbon Steel Tube For Automotive Fuel Line
SAE J526 Welded Low Carbon Steel tube for Automotive Fuel Line
High Pressure Oil Tubes for Diesel Engine Galvanized Precision Tube , NBK Precision Steel Tube , Passivated Steel Tubes
High Pressure Oil Tubes for Diesel Engine
Production process:
Cold drawing bright heat treatment without oxidization 100%nondestructive testing inside flushing under the high pressure antirust oiling outer and inner surface.
high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized.
Main Application:
to be used in hydraulic system, automobile parts and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.
Standards: DIN2391, EN10305-1, EN10305-4 etc.
Steel Grade: St37.4, St35(E235), St45(E255), St52(E355),etc.
Outer Diameter: 4-60 mm
Wall Thickness: 0.5-8mm
Chemical composition(%,max)
| Steel Grade | C | Si | Mn | Cr | Ni | Mo | S | P | Cu |
| 10 | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | 0.15 | 0.3 | - | - | - | - |
| 20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.25 | 0.25 | - | 0.03 | 0.025 | 0.3 |
| 35 | 0.32-0.40 | 0.17-0.37 | 0.50-0.80 | 0.25 | 0.3 | - | 0.04 | 0.035 | 0.3 |
| 45 | 0.42--0.45 | 0.17-0.37 | 0.50-0.80 | 0.25 | - | - | - | - | - |
| 40X | 0.36-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | 0.3 | - | 0.035 | 0.035 | 0.3 |
| 30ХГСА | 0.28-0.34 | 0.90-1.20 | 0.80-1.10 | 0.80-1.10 | 0.3 | - | 0.005 | 0.025 | - |
Mechanical Properties:
| Steel Grade | Tensile Strength, N/mm2 (min) | Yield Strength, N/mm 2 (min) | Elongation, %(min) |
| 10 | 343 | 206 | 24 |
| 20 | 412 | 245 | 21 |
| 35 | 510 | 294 | 17 |
| 45 | 589 | 323 | 14 |
| 40X | 618 | - | 14 |
| 30ХГСА | 491 | - | 18 |
- Engineering machinery
- Machine tool industry
- Hydraulic industry
- Special vehicle
- Automobile pipeline
- Heavy machinery
- Compressor
- Shipbuilding industry
- Railway locomotive
- Diesel engine
- Utility boiler
- Injection molding machine
- Power equipment
- Heavy duty automobile
- Forging and stamping machine
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