ASTM A519 Carbon Steel And Alloy Steel Seamless Precision Honed Hydraulic Tubing Seamless Steel Pipe
Honed hydraulic tubing is a kind of smooth bore steel tube used to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder.
ASTM A519 SAE1026 seamless tubing Chemical Composition (%):
| Grade | C | Mn | P≤ | S≤ |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.040 | 0.050 |
ASME SA519 GR.1026 Standard Pipes Mechanical Properties:
| Properties | Metric | Imperial |
| Tensile strength | 490 MPa | 71100 psi |
| Yield strength | 415 MPa | 60200 psi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80.0 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (In 50 mm) | 15.00% | 15.00% |
| Reduction of area | 40.00% | 40.00% |
| Hardness, Brinell | 143 | 143 |
| Hardness, Knoop (converted from Brinell hardness) | 163 | 163 |
| Hardness, Rockwell B (converted from Brinell hardness) | 78 | 78 |
| Hardness, Vickers (converted from Brinell hardness) | 149 | 149 |
Outside Diameter Tolerances for round Hot-Finished Tubing:
| Outside Diameter Tolerances for Round Hot-Finished Tubing A, B, C | ||
|
Outside Diameter Size Range, In.(mm) |
Outside Diameter Tolerance, in. (mm) | |
| Over (+) | Under (-) | |
| up to 2.999 (76.17) | 0.020 (0.51) | 0.020 (0.51) |
| 3.000-4.499 (76.20-114.27) | 0.025 (0.64) | 0.025 (0.64) |
| 4.500–5.999 (114.30–152.37) | 0.031 (0.79) | 0.031 (0.79) |
| 6.000–7.499 (152.40–190.47) | 0.037 (0.94) | 0.037 (0.94) |
| 7.500–8.999 (190.50–228.57) | 0.045 (1.14) | 0.045 (1.14) |
| 9.000–10.750 (228.60–273.05) | 0.050 (1.27) | 0.050 (1.27) |
|
A. Diameter tolerance is not applicable to normalized and tempered or quenched and tempered conditions. B. The common range of sizes of hot finished tubes is 11⁄2 in. (38.1 mm) to 103⁄4 in. (273.0 mm) outside diameter with wall thickness at least 3 % or more of outside diameter, but not less than 0.095 in. (2.41 mm). C. Larger sizes are available, consult manufacturer for sizes and tolerances. |
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FREQUENTLY ASKED QUESTIONS
1. MOQ: Generally Min Order Quantity can be 2-3 tons/size for tubes with OD below 250mm, and 10 tons/size for tubes with OD above 250mm. Sometimes, it depends on steel grade you need. If you need special grade like E410, E470 or alloy steel tube, MOQ should be 10 tons/size at least.
2. Delivery Time: Generally, our delivery time for honed tubes is around 40-60 days depending on the sizes and quantities. It will take us 15-30 days to get raw material. For example, if you need 3 tons of small size honed tubes 50mm*40mm with roughness of Ra0.25um max, it will take us at least 30 days to hone this size.
3. Warranty&Guarantee: Warranty&guarantee period is 6 months since we deliver the tubes, and we are not responsible for quality problem caused by wrong unloading or storage after shipment. We welcome customer's inspection before shipment.
4. Payment Method: We accept payment method like T/T, L/C, or D/P, but it depends on our investigation about customers. We have a solution to evaluate the credit of customers from all over the world, and time and amount of D/P we can release is determined by the evaluation.
5. Quality Control: 90% of the tubes are made from hot rolled seamless pipes. So, quality of raw material determined quality of finished tubes. We purchase raw material from stable suppliers who are leading steel mills, and we inspect the raw material as per the specifications. During our production procedure, there is inspection and quality control in every stage.
