
Metal cold-cutting circular saw blades are manufactured from high-quality spring steels and low-alloy tool steel plates such as 75Cr1 and 65Mn, through overall heat treatment and machining. The hardness generally reaches above 40 HRC. They feature good rigidity, high strength, high cutting efficiency, and easy resharpening. They are mainly used as matching components for cold-cutting circular saw machines in ERW pipe welding and cold-formed steel production lines, for online fixed-length cutting of workpieces. The cold-cutting circular saw machine is equipped with cooling water at a certain pressure to flush and cool the saw blade teeth, thereby improving cutting performance.

⌀1800 cold saw blade
Metal Cold-Cutting Circular Saw Blades
| Outer Diameter (dD) | Thickness (B) | Bore Diameter (d) | Number of Teeth (Z) |
| 350 | 2.2, 2.5, 3.0 | 32 | 160, 180, 200, 220 |
| 400 | 3.0, 3.5 | 40 | 140, 160, 180, 200, 216 |
| 430 | 4.0 | 80 | 210 |
| 500 | 3.5, 4.0 | 65 | 160, 180, 200, 210 |
| 550 | 3.5, 4.0 | 70 | 136, 160, 180, 216 |
| 600 | 3.5, 4.0 | 80, 90, 100 | 180, 200, 216, 268 |
| 650 | 3.5, 4.0 | 80, 90, 100 | 180, 200, 210, 268 |
| 700 | 4.5, 5.0 | 60, 90, 100 | 216, 240, 300 |
| 750 | 5.0, 5.5 | 65, 70, 90 | 180, 248, 295, 300 |
| 800 | 5.0, 6.0 | 65, 85, 90, 100 | 250, 260, 366 |
| 900 | 5.0, 6.0 | 110, 120 | 208, 238, 288, 340 |
| 1000 | 5.5, 6.0 | 120, 130 | 288, 348, 432 |
| 1050 | 5.5 | 110, 120 | 288 |
| 1200 | 6.0, 8.0 | 120 | 348 |

Structural steel saw blades are divided into two types: standard saw blades (material: 65M) and gap saws (material: 45MN3V), specially designed for large-scale structural steel production plants.
Metal Hot-Cutting Circular Saw Blades
Metallurgical metal hot-cutting circular saw blades are manufactured from high-quality tool steel plates such as 65Mn, 50Mn2V, and 45Mn2V through heat treatment and machining. The blade body exhibits excellent mechanical properties, while the tooth tips are hardened to achieve high hardness and wear resistance. Metal hot-cutting circular saw blades can be paired with various types of circular saw machines for cutting pipes, profiles, bars, etc., made of plain carbon steel, alloy steel, bearing steel, high-speed steel, and other materials. The cutting temperature is generally required to be above 750°C, and for high-alloy steels, above 800°C. The saw machine requires good rigidity and stability, sufficient main motor power, and medium-pressure cooling water above 3 MPa for flushing and cooling the blade. The workpiece must be securely clamped, and cutting parameters should be adjusted according to the specific workpiece. Our company produces hot-cutting circular saw blades with diameters ranging from 800 to 2500 mm.
| Outer Diameter (mm) DIAMETER | Kerf (mm) KERF | Bore Diameter (mm) BORE | Tooth Shape TEETH SHAPE |
| 760 | 100 | 5 | 180 |
| 800 | 110 | 5 | 180/220 |
| 900 | 110 | 5 | 110/176/208/220 |
| 1000 | 300 | 6.0/8.0 | 120/180/216/230/260/320 |
| 1200 | 260/300 | 6.0/7.0 | 200/210/216/220/276/328 |
| 1500 | 360 | 7.0/8.0/9.0 | 220/236/248/276/318/350/380 |
| 1600 | <span style="font-size:14px |