Chainsaw Chain Steel

The saw chain, or cutting chain, is a key component of a chainsaw. The cutting ability of a chainsaw chain depends on the materials used to produce with, normally made out of low-alloy quenched and tempered steel. Baomit offers high quality strip steel for chainsaw cutter heads, guide bars, and connecting pieces. This is the initial area where our technical expertise in saw chain steel and the fast availability of our chainsaw chain steels give us a competitive advantage. If you would like to see for yourself how good the quality of our strip steel is then send your request to us today!

ParametersRecommendation
Thickness ToleranceT1 – T5
RoughnessClass 1
FlatnessClass 3
SurfaceWhite Polished
EdgesSlit / deburred
Steel Grade1055, 8660

Baomit Strip Steel for Chainsaw Chains

Our Advantages:

• Excellent punching and stamping properties

• Precise thickness and width tolerances

• Maximum straightness deviation of 1 mm / 6 m

• Good surface finish

• Outstanding purity grade

• Consistent, uniform microstructure

Steel Grades

Comparison of Norms
EU / ENUSA / AISIChemical Composition
C55E1055C: 0.52-0.60, Si: max 0.40, Mn: 0.60-0.90, Ni: max 0.40, P: max 0.03, S: max 0.035, Cr: max 0.40, Mo: max 0.10
/8660C: 0.56-0.64, Si: 0.15-0.35, Mn:  0.75-1.00, P: max 0.035, S: max 0.04, Cr: 0.40-0.60, Ni: 0.40-0.70, Mo: 0.15-0.25

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