Precision Strips, Bandknife & Bandsaw Blade Steel

Bandknife & Bandsaw Blade Steel

Bandknife & bandsaw blades are very common cutting tools used to cut materials such as metal, wood, non-ferrous alloy, food, paper, textile, foam, polymers. Saw blades usually consist of a continuous metal strip with serrations, usually made of alloy special steel. The teeth of the saw blade can be designed differently according to the needs to adapt to the cutting of different materials. Baomit strip steel meets the demands made by bandknife or bandsaw blade manufacturers and consumers on the quality of the blade material. Baomit steel stands for precision, quality and very high performance. If you would like to learn more the quality of our strip steel then please contact our steel experts.

Parameters	Recommendation
Thickness Tolerance	T2 – T3
Roughness	Class 3
Flatness	Class 3
Surface	White Polished
Edges	Slit / deburred
Hardness	44 – 52 HRC
Steel Grade	C75S, 75Cr1, SKS51, 75Ni8, X32CrMoV3-3

Baomit Strip Steel for Bandknife & Bandsaw Blades

Our Advantages

• Excellent fatigue resistance

• Excellent wear resistance

• Precise thickness and width tolerances

• Maximum straightness deviation of 1 mm / 3 m

• Good surface finish

• Consistent, uniform microstructure

Steel Grades

Comparison of Norms
EU / EN	USA / AISI	Chemical Composition
C67S	1070	C: 0.65-0.73, Si: 0.15-0.35, Mn: 0.60-0.90, Ni: max 0.40, P: max 0.025, S: max 0.025, Cr: max 0.40, Mo: max 0.10
C75S	1075	C: 0.70-0.80, Si: 0.15-0.35, Mn: 0.60-0.90, Ni: max 0.40, P: max 0.025, S: max 0.025, Cr: max 0.40, Mo: max 0.10
75Ni8	/	C: 0.72-0.78, Si: 0.15-0.35, Mn: 0.30-0.50, Ni: 1.80-2.10, P: max 0.025, S: max 0.025, Cr: max 0.15, Mo: max 0.10
X32CrMoV3-3	/	C: 0.28-0.35, Si: 0.10-0.40, Mn: 0.15-0.45, P: max 0.03, S: max 0.02, Cr: 2.70-3.20, Mo: 2.50-3.00, V: 0.40-0.70

Thickness Tolerances

Thickness (mm)	Tolerances ± mm
Thickness (mm)	T1	T2	T3	T4	T5
0.020 – 0.040	0.004	0.003	0.002	–	–
0.040 – 0.100	0.006	0.005	0.004	0.003	0.002
0.100 – 0.125	0.007	0.005	0.004	0.003	0.002
0.125 – 0.160	0.009	0.006	0.005	0.004	0.003
0.160 – 0.200	0.010	0.007	0.005	0.004	0.003
0.200 – 0.250	0.011	0.008	0.006	0.004	0.003
0.250 – 0.400	0.015	0.011	0.008	0.006	0.004
0.400 – 0.600	0.020	0.014	0.010	0.007	0.005
0.600 – 0.800	0.023	0.017	0.012	0.008	0.006
0.800 – 1.000	0.027	0.019	0.013	0.009	0.007
1.000 – 1.250	0.034	0.024	0.017	0.012	0.008
1.250 – 1.600	0.039	0.028	0.020	–	–
1.600 – 1.750	0.046	0.033	0.023	–	–

Width Tolerances

Thickness (mm)	Width (mm)	Tolerances ± mm
Thickness (mm)	Width (mm)	W1	W2	W3
≤0.25	≤50	0.10	0.07	0.05
	50 – 125	0.15	0.11	0.07
	>125	0.20	0.15	0.10
0.25 – 0.50	≤50	0.15	0.11	0.07
	50 – 125	0.20	0.15	0.10
	>125	0.25	0.20	0.15
0.50 – 1.00	≤50	0.20	0.15	0.10
	50 – 125	0.25	0.20	0.15
	>125	0.30	0.25	0.15
1.00 – 1.60	≤50	0.20	0.15	0.10
	50 – 125	0.30	0.25	0.15
	>125	0.35	0.25	0.20
1.60 – 1.75	≤50	0.30	0.20	0.15
	50 – 125	0.35	0.30	0.20
	>125	0.40	0.30	0.20

Surface Roughness

Available in polished bright, white, blue and yellow.

Thickness (mm)	Roughness
Thickness (mm)	Class 1	Class 2	Class 3
≤0.50	Ra≤ 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 – 1.00	Ra≤ 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 – 1.75	Ra≤ 0.40 µm Rt≤ 4.00 µm	Ra≤ 0.30 µm Rt≤ 3.00 µm	Ra≤ 0.30 µm Rt≤ 3.00 µm

Flatness

Maximum flatness deviation per inch strip width.

Thickness (mm)	Flatness Deviation
Thickness (mm)	Class 1	Class 2	Class 3	Class 4
0.02 – 0.10	P60	P50	P40	P30
0.10 – 0.25	P50	P40	P30	P20
0.25 – 0.50	P40	P30	P20	P10
0.50 – 1.75	P35	P25	P15	P10