J524 Seamless Carbon Steel Pipe Mechanical Automotive Tubing 6-88.9mm OD
China Automotive Steel Tube supplier, offer high-quality Precision Automotive Steel Tube, Automotive Steel Pipe, Hydraulic Cylinder Tube, Autopart Steel Tube, Driveshaft Steel Tube, Exhaust Steel Tube for you to choose.
Low carbon steel tubing size range:
O.D.:6-88.9mm
W.T.:1-15mm
Length: According to customer Order
Low carbon steels generally contain less than 0.25% carbon has outstanding ductility and toughness.machineable,Welded -able,inexpensive.like 1010 1020.
Automotive tubing as per J524standard ,can meet standard tolerance as below.
| Table 1- TUBING OUTSIDE DIAMATER TOLERANCE | |||||||
| Nominal Tubing OD mm | Tolerance ±mm | ||||||
| Up to 25.4 | 0.1 | ||||||
| Over 25.4 to 38.1 inclusive | 0.15 | ||||||
| Over 38.1 to 50.8 inclusive | 0.2 | ||||||
| Over 50.8 to 88.9 inclusive | 0.25 | ||||||
| WT tolerance shall be not more than 10% | |||||||
Detail material data of its Chemiacal componet content and Mechanical properties.
| Table 2- CHEMICAL REQUIREMENTS | |||||||
| Element | % | ||||||
| Carbon | 0.18 max | ||||||
| Manganese | 0.30 to 0.60 | ||||||
| Phosphpris | 0.040 max | ||||||
| Sulfur | 0.050 max | ||||||
| Table 3- MECHANICAL PROPERTIES | |||||||
| Properties | Value | ||||||
| Yield Strength,min | 170 Mpa | ||||||
| Ultimate Strenth,min | 310 Mpa | ||||||
| Elongation in 50mm, min | 0.3 | ||||||
| Hardness ( Rockwell B),max | 65 | ||||||
Related standard:
ASTM A513 Electric-Resistance-Welded Carbon and Alloy Steel Tubing
A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
A450/450M Standard Specifications for General Requirements for Carbon,Ferritic Alloy and Austenitic Alloy Steel Tubing
Tests:
Flattening test
Flaring test
Reverse Flattening test
Expansion test
Tensile test
Elongation test
Pressure test
According to above tests to check the quality of steel pipes and its performance.
Quality Check pionts:
Straight
Smooth ends from burrs
Free from scale
Injurious defect
A workmanlike finish
Tolerances specified for diameter and wall thickness.
Surface Inspection and Measure Inspection:
Hexagonal Bundles Packing:
Container Loading:
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