SAE J525 Welded Cold Drawn Low Carbon Steel Tubing Annealed for Bending and Flaring
Applications: for Bending and Flaring to Auto Parts
Quick Detail:
Size range: O.D.:6-350mm W.T.:1-15mm L: According to customer Order
Grade: Low Carbon Steel
Manufacture and Production: ERW+ DOM
The tubing is made from flat-rolled steel shaped into a tubular form, the edges of which are joined and fused together by electric-resistance welding.
After forming and welding, the tubing shall be normalized and subjected to a cold-drawing operation that shall result in a 15% minimum reduction in cross-sectional area, of which 8% shall consist in a reduction in wall thickness. Subsequent to cold working, the tubing shall be normalized via an atmospherically controlled method to produce a finished product that will meet requirement of SAE J525.
Description:
Mechanical tubing made from hot or cold-rolled steel.
Covers electric-resistance-welded low carbon steel tubing for use as mechanical tubing
Advantage:
Good concentricity, Better price than seamless.
| Table 1- TUBING OUTSIDE DIAMATER TOLERANCE |
Nominal Tubing
OD mm | Tolerance
OD ±mm | Tolerance
ID ±mm |
| Up to 9.50 | 0.05 | 0.05 |
| Over 9.50 to 15.88 inclusive | 0.06 | 0.06 |
| Over 15.88 to 50.80 inclusive | 0.08 | 0.08 |
| Over 50.8 to 63.50 inclusive | 0.10 | 0.10 |
| Over 63.50 to 76.20 inclusive | 0.13 | 0.13 |
| Over 76.20 to 100.00 inclusive | 0.15 | 0.15 |
| WT tolerance shall be not more than 10% |
| Table 2- TUBING WALL THICKNESS TOLERANCE |
Nominal
Wall Thickness | Nominal OD
Through 22mm
±mm | Nominal OD
22-48mm
±mm | Nominal OD
48-100mm
±mm |
| 0.89 | 0.05/0.05 | 0.05/0.05 | 0.05/0.05 |
| 1.00 | 0.05/0.05 | 0.05/0.08 | 0.05/0.08 |
| 1.25 | 0.05/0.05 | 0.05/0.08 | 0.05/0.08 |
| 1.50 | 0.05/0.05 | 0.05/0.08 | 0.05/0.08 |
| 1.65 | 0.05/0.05 | 0.05/0.08 | 0.05/0.08 |
| 2.00 | 0.05/0.05 | 0.05/0.08 | 0.05/0.08 |
| 2.11 | 0.05/0.05 | 0.05/0.08 | 0.05/0.08 |
| 2.410 | 0.05/0.05 | 0.05/0.08 | 0.08/0.08 |
| 2.500 | 0.05/0.08 | 0.05/0.10 | 0.08/0.08 |
| 2.770 | 0.05/0.08 | 0.05/0.10 | 0.08/0.08 |
| 3.000 | 0.05/0.08 | 0.05/0.10 | 0.08/0.08 |
| 3.050 | 0.05/0.08 | 0.05/0.10 | 0.08/0.08 |
| 3.40 | - | 0.05/0.10 | 0.08/0.08 |
| 3.75 | - | 0.05/0.10 | 0.08/0.08 |
| 4.00 | - | 0.08/0.10 | 0.08/0.10 |
| 4.19 | - | 0.08/0.10 | 0.08/0.10 |
| 4.57 | - | 0.10/0.10 | 0.08/0.13 |
| 5.00 | - | 0.10/0.13 | 0.10/0.13 |
| Table 2- CHEMICAL REQUIREMENTS |
| Element | % |
| Carbon | 0.06-0.18 |
| Manganese | 0.30 to 0.60 |
| Phosphprus | 0.040 max |
| Sulfur | 0.050 max |
| Table 3- MECHANICAL PROPERTIES |
| Properties | Value |
| Yield Strength,min | 170 Mpa |
| Ultimate Strength,min | 310 Mpa |
| Elongation in 50mm, min | 35% |
| Hardness ( Rockwell B),max | 65.00 |
Production & Sample:
SAE PUBLICATIONS FOR RELATED STNANDARDS:
SAE J409 Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast
Cast of Steel
SAE J514 Hydraulic Tube Fittings
SAE J533 Flares for Tubing
SAE J1677 Test and Procedures for Low Carbon Steel and Copper Nickel Tubing
SAE J1065 Norminal Reference Working Pressure for Steel Hydraulic Tubing
SAE J1453 Fitting - O Ring Face Seal
PERFORMANCE REQUIREMENTS:
Flattening test - SAE1677
Flaring test - SAE1677
Reverse Flattening test - SAE1677
Expansion Test - SAE1677
Hardness Test - SAE1677
Tensile Test - SAE1677
Elongation Test - SAE1677
Pressure Proof Test - SAE1677
Nondestructive Electric Test - SAE1677
Test Certificate: EN10204 3.1 B
Cleanliness- The Inside and outside surfaces of the tubing is commercially bright, clean, and free from grease, oxide scale, carbon deposits, and any other contamination that can not be readily removed by cleaning agents normally used in manufacturing plant
Corrosion Protection - The inside and outside of the finished tubing is protected against corrosion during shipment and normal storage. The corrosion preventive compound can be readily removed by cleaning agents normally used in manufacturing after normal storage periods.
Packaging - The tubing is packed in a way allow it to be transported and stored. Usually in bundles with hexagonal shape with strong strips and lifting string for loading and unloading. Could also follow purchaser's requirement and agreement.
Product Tags:
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