SAEJ525 DOM Steel Tube
Product Details
drawn over mandrel steel tube
,drawn over mandrel steel tubing
Quick Detail:
SAE J525 Welded Cold Draw Low Carbon Steel Tubing annealed for bending and flaring
Size range: O.D.:30-350mm W.T.:1-15mm L: 12000mm or Cut to Short Pieces as specified length
Applications: for Bending and Flaring, Auto Parts
Manufacture:
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 is normalized and subject to a cold-drawing operation that shall result in a 15% minimum reduction in cross-sectional are, of which 8% shall consist in a reduction in wall thickness. Sequent to cold working, the tubing shall be normaIized via an atmospherically controlled method to produce a finished product that will meet all requirement of SAJ525
Dimensions and Tolerances:
The tolerances applicable to the tubing outside diameter and inside diameter are shown in Table 1.
The tolerances applicable to the tubing wall thickness are shown in Table 2
Dimensional tolerances can only apply to two of the three tubing dimensions ( OD, ID, or wall)
Unless otherwise agreed upon between customer and us., dimensional tolerances shall apply to the tube OD and wall dimensions.
| Table 1- TUBING OUTSIDE DIAMETER 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 |
| 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 | 35% |
| Hardness ( Rockwell B),max | 65.00 |
Production Steel Tube:
Eddy Current Test and Ultrasonic Test:
Packing:
-
Auto Parts ASTM A513 Cold Rolling Welded Steel Tubes with DOM Production
Auto Parts ASTM A513 Welded Steel Tubes with DOM production ASTM A513 Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing Applications: for Machinery, Mechanical Engineering 1. Standard: ASTM A513 cold rolling welded precision steel tubes 2. Steel Grade: SAE1010, SAE1020, other materials upon agreement with customers. 3. Production method: Cold rolling on the weled steel tubes, to reach high accuracy on the OD and WT tolerance 4. Size range: O.D.:6-350mm W.T. -
25mm Diameter Bright Annealing Seamless Steel Tube for Hydraulic Systems
EN10305-1 E235 E355 NBK Bright Annealing Precision Steel Pipes for Hydraulic Systems EN10305-1 NBK Bright Annealed Precision steel pipes for Hydraulic system OD:4-80 (mm) WT0.5-10 (mm) Length 1000-12000mm Product name: Seamless Precision Steel Pipe Application: for hydraulic systems precision steel pipes for Hydraulic system OD (mm) WT (mm) Length (mm) 4 0.5 5800-6000 4.0 1.0 5800-6000 5.0 1.0 5800-6000 6.0 1.0 5800-6000 6.0 1.5 5800-6000 8.0 1.0 5800-6000 9.5 0.89 5800-6000 -
Precision Seamless Black Phosphating Steel Tube for Hydraulic Systems
Steel Pipes with high precision for Hydraulic Systems with Black Phosphating surface Black Phosphated Hydraulic Tubes with High Precision and tight tolerance, the tubes are produced by precision cold drawn and cold rolling, then bright annealed in a protected atmosphere, afterwards it is blackphosphated on the surface Production process: DIN series tubes, cold drawn and bright annealed precision seamless steel tube is used as the tube to be phosphated. The phosphorization is -
Precision Seamless Galvanized Steel Tubes DIN2391 EN103052 ST35.0 ST37
Precision Seamless Galvanized Steel Tubes DIN2391 EN103052 ST35.0 ST37 Production Process: Cold rolling by Cold pilger machine and Cold rolling machine,galvanized and zinc plated could be applied. Cold Rolled and Galvanized Steel Tube Production process: DIN highly accurate, cold rolled and bright seamless steel tube is used as the tube to be galvanized. The outer wall of tube is electroplated. The caps are covered at two ends of tube to prevent from the dust. Main Features:
