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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
More
Low-Carbon Steel 90° Angles

- Yield Strength: 36,000 psi
- Hardness: Not Rated (Medium)
- Heat Treatable: See Table
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: See Table
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. Some of these angles can be surface hardened with heat treating.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Ht. | Wd. | Ht. | Wd. | Heat Treatable | Specifications Met | Outside Corner Shape | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
1/8" Wall Thick. | ||||||||||
1/2" | 1/2" | 3/8" | 3/8" | Yes | ASTM A36 | Round | 00000000 | |||
3/4" | 3/4" | 5/8" | 5/8" | Yes | ASTM A36 | Round | 00000000 | |||
1" | 1" | 7/8" | 7/8" | Yes | ASTM A36 | Round | 00000000 | |||
1 1/4" | 1 1/4" | 1 1/8" | 1 1/8" | Yes | ASTM A36 | Round | 00000000 | |||
1 1/2" | 1 1/2" | 1 3/8" | 1 3/8" | Yes | ASTM A36 | Round | 00000000 | |||
1 3/4" | 1 3/4" | 1 5/8" | 1 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
2" | 1 1/2" | 1 7/8" | 1 3/8" | Yes | ASTM A36 | Round | 0000000 | |||
2" | 2" | 1 7/8" | 1 7/8" | Yes | ASTM A36 | Round | 00000000 | |||
3/16" Wall Thick. | ||||||||||
1" | 1" | 13/16" | 13/16" | Yes | ASTM A36 | Round | 00000000 | |||
1 1/4" | 1 1/4" | 1 1/16" | 1 1/16" | Yes | ASTM A36 | Round | 0000000 | |||
1 1/2" | 1 1/2" | 1 5/16" | 1 5/16" | Yes | ASTM A36 | Round | 00000000 | |||
1 3/4" | 1 3/4" | 1 9/16" | 1 9/16" | Yes | ASTM A36 | Round | 00000000 | |||
2" | 1 1/2" | 1 13/16" | 1 5/16" | Yes | ASTM A36 | Round | 0000000 | |||
2" | 2" | 1 13/16" | 1 13/16" | Yes | ASTM A36 | Round | 00000000 | |||
2 1/2" | 2 1/2" | 2 5/16" | 2 5/16" | Yes | ASTM A36 | Round | 00000000 | |||
3" | 2" | 2 13/16" | 1 13/16" | Yes | ASTM A36 | Round | 000000 | |||
3" | 3" | 2 13/16" | 2 13/16" | Yes | ASTM A36 | Round | 00000000 | |||
1/4" Wall Thick. | ||||||||||
1" | 1" | 3/4" | 3/4" | Yes | ASTM A36 | Round | 00000000 | |||
1 1/4" | 1 1/4" | 1" | 1" | Yes | ASTM A36 | Round | 0000000 | |||
1 1/2" | 1 1/2" | 1 1/4" | 1 1/4" | Yes | ASTM A36 | Round | 00000000 | |||
1 3/4" | 1 3/4" | 1 1/2" | 1 1/2" | Yes | ASTM A36 | Round | 0000000 | |||
2" | 1 1/2" | 1 3/4" | 1 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
2" | 2" | 1 3/4" | 1 3/4" | Yes | ASTM A36 | Round | 00000000 | |||
2 1/2" | 1 1/2" | 2 1/4" | 1 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
2 1/2" | 2" | 2 1/4" | 1 3/4" | Yes | ASTM A36 | Round | 000000 | |||
2 1/2" | 2 1/2" | 2 1/4" | 2 1/4" | Yes | ASTM A36 | Round | 00000000 | |||
3" | 2" | 2 3/4" | 1 3/4" | Yes | ASTM A36 | Round | 0000000 | |||
3" | 2 1/2" | 2 3/4" | 2 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
3" | 3" | 2 3/4" | 2 3/4" | Yes | ASTM A36 | Round | 00000000 | |||
3 1/2" | 3 1/2" | 3 1/4" | 3 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
4" | 3" | 3 3/4" | 2 3/4" | Yes | ASTM A36 | Round | 0000000 | |||
4" | 4" | 3 3/4" | 3 3/4" | Yes | ASTM A36 | Round | 00000000 | |||
5" | 3" | 4 3/4" | 2 3/4" | Yes | ASTM A36 | Round | 0000000 | |||
5/16" Wall Thick. | ||||||||||
3" | 2" | 2 11/16" | 1 11/16" | Yes | ASTM A36 | Round | 0000000 | |||
3 1/2" | 3 1/2" | 3 3/16" | 3 3/16" | Yes | ASTM A36 | Round | 0000000 | |||
4" | 4" | 3 11/16" | 3 11/16" | Yes | ASTM A36 | Round | 0000000 | |||
5" | 3 1/2" | 4 11/16" | 3 3/16" | Yes | ASTM A36 | Round | 0000000 | |||
6" | 3 1/2" | 5 11/16" | 3 3/16" | Yes | ASTM A36 | Round | 0000000 | |||
6" | 4" | 5 11/16" | 3 11/16" | Yes | ASTM A36 | Round | 0000000 | |||
3/8" Wall Thick. | ||||||||||
2" | 2" | 1 5/8" | 1 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
2 1/2" | 2 1/2" | 2 1/8" | 2 1/8" | Yes | ASTM A36 | Round | 0000000 | |||
3" | 2" | 2 5/8" | 1 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
3" | 3" | 2 5/8" | 2 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
4" | 3" | 3 5/8" | 2 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
4" | 4" | 3 5/8" | 3 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
5" | 3" | 4 5/8" | 2 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
5" | 5" | 4 5/8" | 4 5/8" | Yes | ASTM A36 | Round | 000000 | |||
6" | 4" | 5 5/8" | 3 5/8" | Yes | ASTM A36 | Round | 0000000 | |||
1/2" Wall Thick. | ||||||||||
2 1/2" | 2 1/2" | 2" | 2" | Yes | ASTM A36 | Round | 0000000 | |||
3" | 3" | 2 1/2" | 2 1/2" | Yes | ASTM A36 | Round | 0000000 | |||
4" | 4" | 3 1/2" | 3 1/2" | Yes | ASTM A36 | Round | 0000000 | |||
5" | 3" | 4 1/2" | 2 1/2" | Yes | ASTM A36 | Round | 0000000 | |||
5" | 5" | 4 1/2" | 4 1/2" | Yes | ASTM A36 | Round | 0000000 | |||
6" | 6" | 5 1/2" | 5 1/2" | Yes | ASTM A36 | Round | 0000000 | |||
5/8" Wall Thick. | ||||||||||
4" | 4" | 3 3/8" | 3 3/8" | Yes | ASTM A36 | Round | 0000000 | |||
6" | 6" | 5 3/8" | 5 3/8" | Yes | ASTM A36 | Round | 0000000 | |||
3/4" Wall Thick. | ||||||||||
4" | 4" | 3 1/4" | 3 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
5" | 3 1/2" | 4 1/4" | 2 3/4" | Yes | ASTM A36 | Round | 0000000 | |||
6" | 4" | 5 1/4" | 3 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
7" | 4" | 6 1/4" | 3 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
8" | 6" | 7 1/4" | 5 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
8" | 8" | 7 1/4" | 7 1/4" | Yes | ASTM A36 | Round | 0000000 | |||
1" Wall Thick. | ||||||||||
6" | 6" | 5" | 5" | Yes | ASTM A36 | Round | 0000000 | |||
8" | 8" | 7" | 7" | Yes | ASTM A36 | Round | 0000000 | |||
3mm Wall Thick. | ||||||||||
30mm | 30mm | 27mm | 27mm | No | EN 10025-2 | Round | 0000000 | |||
4mm Wall Thick. | ||||||||||
40mm | 40mm | 36mm | 36mm | No | EN 10025-2 | Round | 0000000 | |||
5mm Wall Thick. | ||||||||||
50mm | 50mm | 45mm | 45mm | No | EN 10025-2 | Round | 0000000 | |||
6mm Wall Thick. | ||||||||||
40mm | 40mm | 34mm | 34mm | No | EN 10025-2 | Round | 0000000 | |||
70mm | 70mm | 64mm | 64mm | No | EN 10025-2 | Round | 0000000 |
Zinc-Galvanized Low-Carbon Steel 90° Angles

- Yield Strength: 36,000 psi
- Hardness: Rockwell B70 (Medium)
- Heat Treatable: No
- Specifications Met: ASTM A36
These 90° angles are zinc galvanized for good corrosion resistance. Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps and spacers.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | ||||||||
---|---|---|---|---|---|---|---|---|---|
Ht. | Ht. Tolerance | Wd. | Wd. Tolerance | Ht. | Wd. | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
1/8" Wall Thick. (-0.008" to 0.008" Tolerance) | |||||||||
3/4" | -0.032" to 0.032" | 3/4" | -0.032" to 0.032" | 5/8" | 5/8" | 0000000 | |||
1" | -0.032" to 0.032" | 1" | -0.032" to 0.032" | 7/8" | 7/8" | 0000000 | |||
1 1/4" | -0.05" to 0.05" | 1 1/4" | -0.05" to 0.05" | 1 1/8" | 1 1/8" | 0000000 | |||
1 1/2" | -1/8" to 1/8" | 1 1/2" | -1/8" to 1/8" | 1 3/8" | 1 3/8" | 0000000 | |||
2" | -1/8" to 1/8" | 2" | -1/8" to 1/8" | 1 7/8" | 1 7/8" | 0000000 | |||
3/16" Wall Thick. (-0.008" to 0.008" Tolerance) | |||||||||
2" | -0.05" to 0.05" | 2" | -0.05" to 0.05" | 1 13/16" | 1 13/16" | 0000000 | |||
1/4" Wall Thick. (-0.008" to 0.008" Tolerance) | |||||||||
1 1/2" | -1/8" to 1/8" | 1 1/2" | -1/8" to 1/8" | 1 1/4" | 1 1/4" | 0000000 | |||
2" | -1/8" to 1/8" | 2" | -1/8" to 1/8" | 1 3/4" | 1 3/4" | 0000000 | |||
3" | -1/8" to 1/8" | 3" | -1/8" to 1/8" | 2 3/4" | 2 3/4" | 0000000 |