ASTM A513 ERW Carbon and Alloy Steel Mechanical Tubing
ASTM A513 covers round, square, rectangular, and special shape electric-resistance-welded carbon and alloy steel mechanical tubing produced by hot- or cold-rolling. The types of tubing covered here are:
Type 1a, as-welded from hot-rolled steel (with mill scale);
Type 1b, as-welded from hot-rolled pickled and oiled steel (mill scale removed);
Type 2, as-welded from cold-rolled steel;
Type 3, sink-drawn hot-rolled steel;
Type 4, sink-drawn cold-rolled steel;
Type 5, drawn over a mandrel; and
Type 6, special smooth inside diameter.
Heat and product analyses shall be made to determine the percentages of chemical elements, to which the steel specimens shall conform.
ERW Tubing from Hot-Rolled Steel:
OD: 1/2″ – 15″ (12.7 – 380mm)
WT: 0.065″ – 0.650″ (1.65 – 16.5mm)
ERW Tubing from Cold-Rolled Steel:
OD: 3/8″ – 12″ (9.5 – 300mm)
WT: 0.022″ – 0.134″ (0.56 – 3.40mm)
ASTM A513 Mechanical Steel Tubing chemical composition:
| Grade | Composition. % | |||||||
| C | Mn. max | P, max | S | Si | Ni | Cr | Mo | |
| 1008 | 0.10 max. | 0.50 max | 0.035 | 0.035 | … | …. | … | … |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.035 | 0.035 | … | … | … | … |
| 1018 | 0.14-0.20 | 0.60-0.90 | 0.035 | 0.035 | … | … | … | … |
| 1020 | 0.17-0.23 | 0.30-0.60 | 0.035 | 0.035 | … | … | … | … |
| 1025 | 0.22-0.28 | 0.30-0.60 | 0.035 | 0.035 | … | … | … | … |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.035 | 0.035 | … | … | … | … |
| 1524 | 0.18-0.25 | 1.35-1.65 | 0.04 | 0.05 | … | … | … | … |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.035 | 0.04 | 0.15-0.35 | … | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.04 | 0.15-0.35 | … | 0.80-1.10 | 0.15-0.25 |
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| Grade | 1020, 1026, 1524, 4130, 4140 |
|---|---|
| OD | 9.5-380mm |
| WT | 0.56-16.5mm |
| Length | 3 – 12m |