What Saw Blades Should You Use to Cut Metal Materials?

Choosing the wrong saw blade for metal cutting means low efficiency and potential safety hazards. Different metals have vastly different hardness levels, requiring completely different blade types. As a professional diamond cutting blade manufacturer, HDGinkgo helps you sort out the logic of blade selection.

1. Common Saw Blade Types for Metal Cutting

There are three main types of blades that can cut metal:

1. Diamond Saw Blades — Ideal for hard metals and composite materials. Diamond particles have extreme hardness. When cutting stainless steel, hard alloys, and other high-hardness metals, diamond blades offer superior wear resistance and cutting precision compared to ordinary blades. HDGinkgo metal-cutting diamond blades use hot-pressed sintering technology, producing dense and uniform segments that extend cutting life by over 30% compared to cold-pressed blades.

2. Tungsten Carbide Saw Blades — Suitable for soft and medium-hardness metals. Copper, aluminum, and low-carbon steel can be handled by carbide blades, which are relatively affordable and cut fast.

3. High-Speed Steel (HSS) Saw Blades — For thin-wall metal tubing and light metals. HSS blades are low-cost but have average wear resistance and short life when cutting hard metals.

2. Which Blade for Each Metal?

Stainless Steel — Diamond blades are the first choice. Stainless steel is hard and has poor thermal conductivity, causing ordinary blades to wear and burn quickly. Diamond blades cut stainless steel with wet cutting for flat, burr-free edges.

Aluminum — Carbide or diamond blades both work. Aluminum is soft, so carbide blades offer good value; for batch cutting, diamond blades last longer with more stable precision.

Copper — Carbide blades are sufficient. Copper is soft and ductile, no need for diamond-level hardness.

Steel (Low/Medium Carbon) — Carbide or diamond blades depending on cutting frequency and precision needs. High-volume production favors diamond blades to reduce blade change frequency.

3. Key Selection Criteria for Metal Cutting Blades

Blade Diameter — Match the cutting machines flange and spindle size, typically 4 to 14 inches.

Teeth/Segments — More teeth for thin-wall tubing, fewer large segments for thick plates to avoid blade jamming.

Cooling Method — Wet cutting (with water) is recommended for metal to extend blade life and reduce dust.

Brand Quality — Choose brands with manufacturing credentials. HDGinkgo metal-cutting diamond blades feature full process control from formulation to hot-pressed sintering, ensuring consistent quality.

Summary

Select blades based on metal hardness: hard metals use diamond, soft metals use carbide or HSS. For high-frequency, high-precision cutting scenarios, diamond blades have higher unit prices but lower total costs. HDGinkgo offers diamond blades in various specifications for metal cutting — contact us for selection advice.