ASTM A513 DOM Steel Tube with Precision Structure 1026 High Yield Strength and Controlled Straightness for Hydraulic Cylinders
Product Details
welding steel tubing
,electric resistance welded steel tube
ASTM A513 DOM steel tubing is a precision mechanical tubing product made from electric-resistance-welded carbon steel tube and then cold drawn over a mandrel to improve dimensional accuracy, wall uniformity, surface finish, and mechanical strength. For buyers specifying 1010, 1020, or 1026, ASTM A513 Type 5 is the correct specification to request when the application requires closer OD/ID control than ordinary ERW tubing. ASTM A513 covers ERW carbon and alloy steel mechanical tubing, including Type 5 drawn-over-mandrel tubing, and applies to round, square, rectangular, and special-shape tubing.
| Item | Description |
|---|---|
| Material | Carbon steel mechanical tubing |
| Standard | ASTM A513/A513M Type 5 DOM |
| Grades | 1010, 1020, 1026; 1008, 1015, 1035 available by order |
| Outside Diameter | Common DOM range: 0.250-12.000 in / 6.35-304.8 mm; ASTM A513 round tubing scope includes ERW tubing up to 15 in / 380 mm depending on type |
| Wall Thickness | Common DOM range: 0.035-0.650 in / 0.89-16.50 mm |
| Length | 1-12 m, cut-to-length available |
| Tolerance Range | OD/ID tolerance typically from +0.004/-0.000 in to ±0.038 in depending on OD and wall percentage; wall tolerance typically ±0.002-±0.017 in depending on wall and OD |
| Straightness | OD below 8 in: 0.030 in max per 3 ft; OD 8 in and above: 0.060 in max per 3 ft |
| Surface Condition | Smooth OD/ID surface, flash-controlled or flash-removed, oiled anti-rust surface; pickled and oiled or bright finish available by order |
| Heat Treatment | As-drawn, stress-relieved, normalized, or annealed condition available according to purchase order |
The tube is produced by ERW forming and then cold drawn over a mandrel. This process improves dimensional accuracy, concentricity, surface finish, and mechanical strength compared with standard as-welded ERW tubing.
In mandrel-drawn condition, Grade 1026 typically reaches minimum yield strength of 70 ksi / 483 MPa and minimum tensile strength of 80 ksi / 552 MPa, with 5% minimum elongation and RB 85 minimum hardness.
ASTM A513 Type 5 DOM tolerance references list straightness at 0.030 in per 3 ft for OD below 8 in and 0.060 in per 3 ft for OD 8 in and above.
Typical wall tolerance can be as tight as ±0.002 in on light-wall DOM sizes and up to ±0.017 in on heavy-wall sections, depending on OD and wall thickness.
1010 is suitable for lower-carbon forming and light mechanical parts; 1020 offers balanced strength and machinability; 1026 is preferred where higher yield strength, better dimensional stability, and heavier mechanical loading are required.
We quote and mark the material as ASTM A513 Type 5 DOM, not general ERW pipe. The production route includes ERW tube forming followed by cold drawing over a mandrel. ASTM A513 identifies Type 5 as drawn-over-mandrel tubing, and also requires heat/product analysis to verify chemical conformity.
Before production, we confirm whether the buyer controls OD × ID, OD × wall, or ID × wall. This is important because DOM tolerances are size-dependent. We can specify OD/ID tolerance, wall tolerance, ovality, and straightness in the purchase order so the tube is suitable for boring, honing, turning, bushing, sleeve, or cylinder component production.
We recommend by loading condition and downstream processing. Use 1010 for lower-carbon forming and light-duty mechanical parts, 1020 for balanced strength and weldability, and 1026 when higher yield strength and better dimensional stability are required. For example, ASTM A513 DOM 1026 provides higher minimum yield and tensile strength than 1020 in mandrel-drawn condition.
| Standard System | Applicable Standard |
|---|---|
| ASTM | ASTM A513/A513M Type 5 DOM mechanical tubing |
| EN | EN 10305-2 welded cold-drawn precision steel tubes; EN 10305-3 welded cold-sized precision steel tubes |
| JIS | JIS G3445 carbon steel tubes for machine structural purposes |
| GB | GB/T 13793 straight-seam electric welded steel pipe; GB/T 3639 precision steel tube by technical agreement |
| GOST | GOST 10704 / GOST 10705 electric-welded steel pipe, subject to project-based equivalence review |
Hydraulic cylinder barrel blank for forklift lift cylinders.
Chemical composition limits below are based on ASTM A513 carbon steel grade requirements. Values are in weight percent.
| Grade | C | Mn | P max | S max |
|---|---|---|---|---|
| 1008 | 0.10 max | 0.50 max | 0.035 | 0.035 |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.035 | 0.035 |
| 1015 | 0.13-0.18 | 0.30-0.60 | 0.035 | 0.035 |
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.035 | 0.035 |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.035 | 0.035 |
The following values are typical ASTM A513 DOM mandrel-drawn minimum mechanical properties.
| Grade | Yield Strength min | Tensile Strength min | Elongation min | Hardness |
|---|---|---|---|---|
| 1008 | 50 ksi / 345 MPa | 60 ksi / 414 MPa | 5% | RB 73 min |
| 1010 | 50 ksi / 345 MPa | 60 ksi / 414 MPa | 5% | RB 73 min |
| 1015 | 55 ksi / 379 MPa | 65 ksi / 448 MPa | 5% | RB 77 min |
| 1020 | 60 ksi / 414 MPa | 70 ksi / 483 MPa | 5% | RB 80 min |
| 1026 | 70 ksi / 483 MPa | 80 ksi / 552 MPa | 5% | RB 85 min |
Manufacturer, also can do trading.
Generally speaking, it is 10-15 days if the goods are in stock, or it is 30-40 days if the goods are not in stock, it is according to quantity.
Yes, we could offer the sample for free charge but need pay the cost of freight.
Payment ≤ 2000 USD, 100% in advance. Payment ≥ 2000 USD, 30% T/T in advance, balance before shipment. If you have another question, please feel free to contact with me.
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