TORICH INTERNATIONAL LIMITED
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GB/T3093 High-pressure Seamless Steel 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.
Application:Manufacturing diesel injection system of high pressure oil pipe in cold drawn seamless steel tube
size:OD:6-530mm
WT:0.5-38.1mm
Length:1.5-6m
Steel Grade And Chemical component
| Unified digital code | Grade | Chemical Component(Quality Fraction)/% | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | ||
| No More Than | |||||||||
| U20103 | 10A | 0.07~0.13 | 0.17~0.37 | 0.35~0.65 | 0.030 | 0.030 | 0.15 | 0.30 | 0.20 |
| U20203 | 20A | 0.17~0.23 | 0.17~0.37 | 0.35~0.65 | 0.030 | 0.030 | 0.25 | 0.30 | 0.20 |
| L03451 | Q345A | ≤0.20 | ≤0.55 | 1.00~1.60 | 0.030 | 0.030 | 0.30 | 0.30 | 0.20 |
Mechanical Properties Of Pipes
| Unified digital code | Grade | Chemical Component(Quality Fraction)/% | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | ||
| No More Than | |||||||||
| U20103 | 10A | 0.07~0.13 | 0.17~0.37 | 0.35~0.65 | 0.030 | 0.030 | 0.15 | 0.30 | 0.20 |
| U20203 | 20A | 0.17~0.23 | 0.17~0.37 | 0.35~0.65 | 0.030 | 0.030 | 0.25 | 0.30 | 0.20 |
| L03451 | Q345A | ≤0.20 | ≤0.55 | 1.00~1.60 | 0.030 | 0.030 | 0.30 | 0.30 | 0.20 |
Manufacturing Method:Steel should be manufactured in electric or oxygen converter.Steel Pipe should be manufactured by cold drawn seamless method.
Delivery State:After final cold drawn,steel tubes will be deliveried with heat treatment.
Test Item:Tensile test
Cold head forging test
Hydraulic test
Eddy current test
