Hardened and Tempered Carbon Steel Strips

The strength, durability and flexibility of high carbon steel make it suitable for many high strength applications. Baomit’s production team properly harden and temper carbon steel strips to satisfy the most demanding specifications of our customers. The particular AISI/SAE high carbon steels we offer are used by the automotive, blade, and aerospace industries, for example, and in the manufacture of products like blades, power springs, saws, automotive parts, washers, and more.

ParametersRecommendation
Thickness ToleranceT1 – T5
RoughnessClass 1 – 3
FlatnessClass 1 – 4
SurfaceBright, White Polished, Blue Polished, Yellow Polished
EdgesSlit, Deburred, Square, Round
Hardness41 – 57 HRC
Thickness0.10 – 4.50 mm
Width3 – 460 mm
Steel Grade1050, 1055, 1075, 1095, SK5, SK4, SK2, C67S, C75S, C100S

Hardened and Tempered Carbon Steel Strips

Our Advantages:

• Precise thickness and width tolerances

• Maximum straightness deviation of 1 mm / 6 m

• Good surface finish

• Consistent, uniform microstructure

• Excellent punching and stamping properties

Steel Grades

Comparison of Norms
USA / AISIEU / ENChemical Composition
1075C75SC: 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
1095C100SC: 0.95-1.05, Si: 0.15-0.35, Mn: 0.30-0.60, Ni: max 0.40, P: max 0.025, S: max 0.025, Cr: max 0.40, Mo: max 0.10

Manufacture Process

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Cold Rolling

cold rolling process

Slitting

slitting process

Heat Treatment

heat treatment process

Surface Polishing

surface polishing

Edging

edge process

Packaging

packing process

Thickness Tolerances

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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

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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

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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

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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

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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 Leading Manufacturer of Hardened Tempered High Carbon Steel Strips 1075/1095/C67S/C75S/C100S/SKS51/SK4/SK5.