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Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
Low-Carbon Steel 90° Angles
- Yield Strength: 36,000 psi
- Hardness: Not Rated
- Heat Treatable: See Table
- Max. Hardness After Heat Treatment: Not Rated
- Fabrication: Hot Rolled
- 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 frames, supports, and edge protectors. These 90° angles meet either ASTM A36 or EN 10025-2 standards for performance and quality.
Heat treatable steel can be surface hardened for added wear resistance.
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 | 1/2 ft. Lg. | 1 ft. Lg. | 2 ft. Lg. | 3 ft. Lg. | 4 ft. Lg. | 6 ft. Lg. | 8 ft. Lg. | 10 ft. Lg. | |
1/8" Wall Thick. | ||||||||||||||
| 1/2" | 1/2" | 3/8" | 3/8" | Yes | ASTM A36 | 00000000 | ||||||||
| 3/4" | 3/4" | 5/8" | 5/8" | Yes | ASTM A36 | 00000000 | ||||||||
| 1" | 1" | 7/8" | 7/8" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 1/4" | 1 1/4" | 1 1/8" | 1 1/8" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 1/2" | 1 1/2" | 1 3/8" | 1 3/8" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 3/4" | 1 3/4" | 1 5/8" | 1 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 2" | 1 1/2" | 1 7/8" | 1 3/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 2" | 2" | 1 7/8" | 1 7/8" | Yes | ASTM A36 | 00000000 | ||||||||
3/16" Wall Thick. | ||||||||||||||
| 1" | 1" | 13/16" | 13/16" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 1/4" | 1 1/4" | 1 1/16" | 1 1/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 1 1/2" | 1 1/2" | 1 5/16" | 1 5/16" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 3/4" | 1 3/4" | 1 9/16" | 1 9/16" | Yes | ASTM A36 | 00000000 | ||||||||
| 2" | 1 1/2" | 1 13/16" | 1 5/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 2" | 2" | 1 13/16" | 1 13/16" | Yes | ASTM A36 | 00000000 | ||||||||
| 2 1/2" | 2 1/2" | 2 5/16" | 2 5/16" | Yes | ASTM A36 | 00000000 | ||||||||
| 3" | 2" | 2 13/16" | 1 13/16" | Yes | ASTM A36 | 000000 | ||||||||
| 3" | 3" | 2 13/16" | 2 13/16" | Yes | ASTM A36 | 00000000 | ||||||||
1/4" Wall Thick. | ||||||||||||||
| 1" | 1" | 3/4" | 3/4" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 1/4" | 1 1/4" | 1" | 1" | Yes | ASTM A36 | 0000000 | ||||||||
| 1 1/2" | 1 1/2" | 1 1/4" | 1 1/4" | Yes | ASTM A36 | 00000000 | ||||||||
| 1 3/4" | 1 3/4" | 1 1/2" | 1 1/2" | Yes | ASTM A36 | 0000000 | ||||||||
| 2" | 1 1/2" | 1 3/4" | 1 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 2" | 2" | 1 3/4" | 1 3/4" | Yes | ASTM A36 | 00000000 | ||||||||
| 2 1/2" | 1 1/2" | 2 1/4" | 1 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 2 1/2" | 2" | 2 1/4" | 1 3/4" | Yes | ASTM A36 | 000000 | ||||||||
| 2 1/2" | 2 1/2" | 2 1/4" | 2 1/4" | Yes | ASTM A36 | 00000000 | ||||||||
| 3" | 2" | 2 3/4" | 1 3/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 3" | 2 1/2" | 2 3/4" | 2 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 3" | 3" | 2 3/4" | 2 3/4" | Yes | ASTM A36 | 00000000 | ||||||||
| 3 1/2" | 3 1/2" | 3 1/4" | 3 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 4" | 3" | 3 3/4" | 2 3/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 4" | 4" | 3 3/4" | 3 3/4" | Yes | ASTM A36 | 00000000 | ||||||||
| 5" | 3" | 4 3/4" | 2 3/4" | Yes | ASTM A36 | 0000000 | ||||||||
5/16" Wall Thick. | ||||||||||||||
| 3" | 2" | 2 11/16" | 1 11/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 3 1/2" | 3 1/2" | 3 3/16" | 3 3/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 4" | 4" | 3 11/16" | 3 11/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 5" | 3 1/2" | 4 11/16" | 3 3/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 6" | 3 1/2" | 5 11/16" | 3 3/16" | Yes | ASTM A36 | 0000000 | ||||||||
| 6" | 4" | 5 11/16" | 3 11/16" | Yes | ASTM A36 | 0000000 | ||||||||
3/8" Wall Thick. | ||||||||||||||
| 2" | 2" | 1 5/8" | 1 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 2 1/2" | 2 1/2" | 2 1/8" | 2 1/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 3" | 2" | 2 5/8" | 1 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 3" | 3" | 2 5/8" | 2 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 3 1/2" | 3 1/2" | 3 1/8" | 3 1/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 4" | 3" | 3 5/8" | 2 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 4" | 4" | 3 5/8" | 3 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 5" | 3" | 4 5/8" | 2 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 5" | 5" | 4 5/8" | 4 5/8" | Yes | ASTM A36 | 000000 | ||||||||
| 6" | 4" | 5 5/8" | 3 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 6" | 6" | 5 5/8" | 5 5/8" | Yes | ASTM A36 | 0000000 | ||||||||
1/2" Wall Thick. | ||||||||||||||
| 2 1/2" | 2 1/2" | 2" | 2" | Yes | ASTM A36 | 0000000 | ||||||||
| 3" | 3" | 2 1/2" | 2 1/2" | Yes | ASTM A36 | 0000000 | ||||||||
| 4" | 4" | 3 1/2" | 3 1/2" | Yes | ASTM A36 | 0000000 | ||||||||
| 5" | 3" | 4 1/2" | 2 1/2" | Yes | ASTM A36 | 0000000 | ||||||||
| 5" | 5" | 4 1/2" | 4 1/2" | Yes | ASTM A36 | 0000000 | ||||||||
| 6" | 6" | 5 1/2" | 5 1/2" | Yes | ASTM A36 | 0000000 | ||||||||
5/8" Wall Thick. | ||||||||||||||
| 4" | 4" | 3 3/8" | 3 3/8" | Yes | ASTM A36 | 0000000 | ||||||||
| 6" | 6" | 5 3/8" | 5 3/8" | Yes | ASTM A36 | 0000000 | ||||||||
3/4" Wall Thick. | ||||||||||||||
| 4" | 4" | 3 1/4" | 3 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 5" | 3 1/2" | 4 1/4" | 2 3/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 6" | 4" | 5 1/4" | 3 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 7" | 4" | 6 1/4" | 3 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 8" | 6" | 7 1/4" | 5 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
| 8" | 8" | 7 1/4" | 7 1/4" | Yes | ASTM A36 | 0000000 | ||||||||
1" Wall Thick. | ||||||||||||||
| 6" | 6" | 5" | 5" | Yes | ASTM A36 | 0000000 | ||||||||
| 8" | 8" | 7" | 7" | Yes | ASTM A36 | 0000000 | ||||||||
3mm Wall Thick. | ||||||||||||||
| 30mm | 30mm | 27mm | 27mm | No | EN 10025-2 | 0000000 | ||||||||
4mm Wall Thick. | ||||||||||||||
| 40mm | 40mm | 36mm | 36mm | No | EN 10025-2 | 0000000 | ||||||||
5mm Wall Thick. | ||||||||||||||
| 50mm | 50mm | 45mm | 45mm | No | EN 10025-2 | 0000000 | ||||||||
6mm Wall Thick. | ||||||||||||||
| 40mm | 40mm | 34mm | 34mm | No | EN 10025-2 | 0000000 | ||||||||
| 70mm | 70mm | 64mm | 64mm | No | EN 10025-2 | 0000000 | ||||||||
Zinc-Galvanized Low-Carbon Steel 90° Angles
- Yield Strength: 36,000 psi
- Hardness: Rockwell B70 (Medium)
- Heat Treatable: No
- Fabrication: Hot Rolled
- 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 and form. It's widely fabricated into parts that don’t require high strength, such as frames, supports, and edge protectors. They all meet ASTM A36 standards for quality and performance.
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. | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | 8 ft. Lg. | |
1/8" Wall Thick. | ||||||||
| 1/2" | 1/2" | 3/8" | 3/8" | 00000000 | ||||
| 3/4" | 3/4" | 5/8" | 5/8" | 0000000 | ||||
| 1" | 1" | 7/8" | 7/8" | 0000000 | ||||
| 1 1/4" | 1 1/4" | 1 1/8" | 1 1/8" | 0000000 | ||||
| 1 1/2" | 1 1/2" | 1 3/8" | 1 3/8" | 0000000 | ||||
| 2" | 2" | 1 7/8" | 1 7/8" | 0000000 | ||||
3/16" Wall Thick. | ||||||||
| 1" | 1" | 13/16" | 13/16" | 00000000 | ||||
| 1 1/2" | 1 1/2" | 1 5/16" | 1 5/16" | 00000000 | ||||
| 2" | 2" | 1 13/16" | 1 13/16" | 0000000 | ||||
| 3" | 2" | 2 13/16" | 1 13/16" | 00000000 | ||||
| 3" | 3" | 2 13/16" | 2 13/16" | 00000000 | ||||
1/4" Wall Thick. | ||||||||
| 1 1/2" | 1 1/2" | 1 1/4" | 1 1/4" | 0000000 | ||||
| 2" | 2" | 1 3/4" | 1 3/4" | 0000000 | ||||
| 3" | 2" | 2 3/4" | 1 3/4" | 00000000 | ||||
| 3" | 3" | 2 3/4" | 2 3/4" | 0000000 | ||||
| 4" | 3" | 3 3/4" | 2 3/4" | 00000000 | ||||
| 5" | 3" | 4 3/4" | 2 3/4" | 00000000 | ||||
Low-Carbon Steel Triangles
- Yield Strength: See table
- Hardness: See table
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: See table
Weld these steel triangles to strengthen joints in structural applications. They’re also known as gussets. They have clipped corners that leave room for a weld bead, allowing for stronger welds. These triangles are made of low-carbon steel, which is easy to machine, form, and weld. All meet ASTM material standards for steel.
Physical and mechanical properties are not guaranteed. They are intended only as a basis for comparison and not for design purposes.
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.
| Thick. | Thick. Tolerance | Yield Strength, psi  | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
4" × 4" | |||||||
|---|---|---|---|---|---|---|---|
| 1/8" | -0.003" to 0.003" | 30,000 | Rockwell B40 (Soft) | ASTM A1011 | 2 | 0000000 | 00000 |
| 3/16" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 2 | 0000000 | 00000 |
| 1/4" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 00000 |
6" × 6" | |||||||
| 1/8" | -0.003" to 0.003" | 30,000 | Rockwell B40 (Soft) | ASTM A1011 | 2 | 0000000 | 00000 |
| 3/16" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 0000 |
| 1/4" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 0000 |
8" × 8" | |||||||
| 1/8" | -0.003" to 0.003" | 30,000 | Rockwell B40 (Soft) | ASTM A1011 | 2 | 0000000 | 00000 |
| 3/16" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 00000 |
| 1/4" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 00000 |
12" × 12" | |||||||
| 1/8" | -0.003" to 0.003" | 30,000 | Rockwell B40 (Soft) | ASTM A1011 | 1 | 0000000 | 00000 |
| 3/16" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 00000 |
| 1/4" | -0.008" to 0.008" | 36,000 | Rockwell B65 (Soft) | ASTM A36 | 1 | 0000000 | 00000 |
Easy-to-Weld 4130 Alloy Steel Triangles
- Yield Strength: 50,000 psi
- Hardness: Rockwell B85 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C60
- Fabrication: See table
- Specifications Met: SAE AMS6350, SAE AMS6351
Weld these alloy steel triangles to strengthen joints in structural applications. They're also known as gussets. They have clipped corners that leave room for a weld bead, so you can make stronger welds. Made from 4130 alloy steel, also known as chrome-moly steel, these triangles have low carbon content for good weldability. To increase their wear resistance, you can harden them with heat treating. They have been manufactured to meet SAE standards for quality and performance.
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.
| Thick. | Thick. Tolerance | Fabrication | Heat Treatment | Pkg. Qty. | Pkg. | |
4" × 4" | ||||||
|---|---|---|---|---|---|---|
| 1/8" | -0.009" to 0.009" | Cold Rolled | Annealed (Softened) | 2 | 0000000 | 000000 |
| 3/16" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 1/4" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
6" × 6" | ||||||
| 1/8" | -0.009" to 0.009" | Cold Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 3/16" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 1/4" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
8" × 8" | ||||||
| 1/8" | -0.009" to 0.009" | Cold Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 3/16" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 1/4" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
12" × 12" | ||||||
| 1/8" | -0.009" to 0.009" | Cold Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 3/16" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |
| 1/4" | -0.009" to 0.009" | Hot Rolled | Annealed (Softened) | 1 | 0000000 | 00000 |