Products Description
ASTM A847 Corten Steel Air Heater Pipes is a weathering steel that is a high-strength, low-alloy steel covering cold-formed welded square and rectangular tubing and pipe.
The atmospheric corrosion resistance of this steel is significantly better than that of carbon steel with or without added copper in most environments.
ASTM A847carbon pipe is intended for welded, bolted or riveted construction of bridges and other structures where high strength and enhanced corrosion resistance are required. ASTM A847 has a 50ksi minimum yield strength and a 70ksi minimum tensile strength.
Products Specification
| Standards | ASTM A 847 / ASME SA 847 |
| Shape | round, square,rectangular, Hydraulic, Honed Tubes |
| Squares Size | 3″ through 12″ |
| Rectangles Size | 4″ x 2″ through 16″ x 8″ |
| Rounds Size | 6.625″OD, 8.625″OD, 10.75″OD, 12.75″OD, 14″OD and 16"OD |
| Walls Thickness | .125″ through .625″ |
| Length | Single Random, Double Random & Cut Length |
| Type | Weathering Steel |
| End | Plain End, Beveled End |
Corten Steel Pipe Chemical Composition
| COMPOSITION | Grade 1 | Grade 2 |
| Carbon, max | 0.15 | 0.15 |
| Manganese, max | 0.55 | 0.50–1.00 |
| Phosphorus | 0.06–0.16 | 0.04 max |
| Sulfur, max | 0.060 | 0.05 |
| Silicon, min | 0.10 | … |
| Copper | 0.20–0.60 | 0.30–1.00 |
| Chromium | 0.24–1.31 | … |
| Nickel | 0.20–0.70 | 0.40–1.10 |
| Molybdenum, min | … | 0.10 |
| Elements | Heat Analysis | Product Analysis |
| Carbon Max | 0.20 | 0.24 |
| Manganese Max | 1.35 | 1.40 |
| Phosphorus Max | 0.15 | n/a |
| Sulpher Max | 0.05 | 0.06 |
| Copper Min | 0.20 | 0.18 |
Corten Steel Pipes Mechanical Properties
| Grade | Yield Strength Min PSI |
Tensile Strength Min PSI |
Elongation % (min) |
|---|---|---|---|
| ASTM A847 | 50,000 | 70,000 | 19 |
Specification Notes
According to ASTM A847, the weld seam location for square, rectangular, and other specially shaped tubing shall not be positioned within the corner radius, unless otherwise specified by the customer or manufacturer.
Under ASTM A847, the corner radius for square and rectangular tubing shall not exceed three times the corner radius.
In accordance with ASTM A847, Electric Resistance Welded (ERW) tubing is normally supplied without removal of the internal weld flash. If flash control is required, please specify this requirement at the time of quotation or order placement.
ASTM A847 is a related structural specification that covers standard carbon steel structural tubing. For more information, please refer to the ASTM A847 page.
For more detailed information about the ASTM A847 specification or to purchase the official document, please visit the ASTM website.
