Circular Saw Blade Steel

Circular saw blades are widely used for processing solid wood, plywood, MDF, and wood composites in different industries. Various blades are used to cut different types of material most effectively. As an experienced and certified supplier of special strip steel, Baomit is the perfect raw materials partner for global manufacturers who need to produce high quality, professional and cost-efficient circular saw blades.

ParametersRecommendation
Thickness ToleranceT3
RoughnessClass 3
FlatnessClass 3
SurfaceBright
EdgesSlit / deburred
Hardness44 – 47 HRC
Steel GradeSK5, 75Cr1, 80CrV2, SKS51

Baomit Special Steel Plates for Circular Saw Blades

Our Advantages:

• Excellent fatigue resistance

• Excellent punching and stamping properties

• Precise thickness and width tolerances

• Maximum straightness deviation of 1 mm / 6 m

• Good surface finish

• Consistent, uniform microstructure

Steel Grades

Comparison of Norms
EU / ENUSA / AISIJAPAN / JICChemical Composition
75Cr1//C: 0.70-0.80, Si: 0.25-0.50, Mn: 0.60-0.80, P: max 0.025, S: max 0.025, Cr: 0.30-0.40
80CrV2//C: 0.75-0.85, Si: 0.15-0.35, Mn: 0.30-0.50, Ni: max 0.40, P: max 0.025, S: max 0.025, Cr: 0.40-0.60, Mo: max 0.10, V: 0.15-0.25
//SKS51C: 0.75-0.85, Si: max 0.35, Mn: max 0.50, P: max 0.03, S: max 0.03, Cu: max 0.25, Ni: 1.3-2.0, Cr: 0.20-0.50

Thickness Tolerances

Thickness (mm)Tolerances ± mm
T1T2T3T4T5
0.020 – 0.0400.0040.0030.002
0.040 – 0.1000.0060.0050.0040.0030.002
0.100 – 0.1250.0070.0050.0040.0030.002
0.125 – 0.1600.0090.0060.0050.0040.003
0.160 – 0.2000.0100.0070.0050.0040.003
0.200 – 0.2500.0110.0080.0060.0040.003
0.250 – 0.4000.0150.0110.0080.0060.004
0.400 – 0.6000.0200.0140.0100.0070.005
0.600 – 0.8000.0230.0170.0120.0080.006
0.800 – 1.0000.0270.0190.0130.0090.007
1.000 – 1.2500.0340.0240.0170.0120.008
1.250 – 1.6000.0390.0280.020
1.600 – 1.7500.0460.0330.023

Width Tolerances

Thickness (mm)Width (mm)Tolerances ± mm
W1W2W3
≤0.25≤500.100.070.05
50 – 1250.150.110.07
>1250.200.150.10
0.25 – 0.50≤500.150.110.07
50 – 1250.200.150.10
>1250.250.200.15
0.50 – 1.00≤500.200.150.10
50 – 1250.250.200.15
>1250.300.250.15
1.00 – 1.60≤500.200.150.10
50 – 1250.300.250.15
>1250.350.250.20
1.60 – 1.75≤500.300.200.15
50 – 1250.350.300.20
>1250.400.300.20

Surface Roughness

Available in white polished, blue polished and yellow.

Thickness (mm)Roughness
Class 1Class 2Class 3
≤0.50Ra≤ 0.30 µm
Rt≤ 3.00 µm
Ra≤0.25 µm
Rt≤ 2.50 µm
Ra≤ 0.20 µm
Rt≤ 2.00 µm
0.50 – 1.00Ra≤ 0.35 µm
Rt≤ 3.50 µm
Ra≤ 0.25 µm
Rt≤ 2.50 µm
Ra≤ 0.20 µm
Rt≤ 2.00 µm
1.00 – 1.75Ra≤ 0.40 µm
Rt≤ 4.00 µm
Ra≤ 0.30 µm
Rt≤ 3.00 µm
Ra≤ 0.30 µm
Rt≤ 3.00 µm

Flatness Deviation

Maximum flatness deviation per inch strip width.

Thickness (mm)Flatness Deviation
Class 1Class 2Class 3Class 4
0.02 – 0.10P60P50P40P30
0.10 – 0.25P50P40P30P20
0.25 – 0.50P40P30P20P10
0.50 – 1.75P35P25P15P10

Straightness Deviation

Strip Width (mm)Measured Length (3m)
Class 1Class 2Class 3
≤503 mm2 mm1 mm
50 – 1253 mm2 mm1 mm
>1253 mm2 mm1 mm

Hubei Baomit Steel Materials Co., Ltd.

China Verified Manufacturer of Hardened and Tempered (H & T) Strip Steel, Sheets & Plates