8660 Strip Steel Hardened Tempered Steel Coil

Hardened and tempered strip steel has comprehensive mechanical properties with good strength, hardness and toughness. Baomit’s production team properly harden and temper carbon steel strips to satisfy the most demanding specifications of our customers.

ParametersRecommendation
Steel Grade8660
BrandBaomit
CertificationISO9001:2015
Hardness41 – 45 HRC
Surface FinishWhite polished, blue polished, yellow polished
EdgesSlit, square or round
Thickness Tolerance+/- 0.02
Width Tolerance+/- 0.10
CamberMax 1mm per 3m
8660 Strip Steel Hardened Tempered Steel Coil

 

Our Advantages:

• Excellent fatigue resistance

• High productivity

• Precise thickness and width tolerances

• Maximum straightness deviation of 1 mm / 6 m

• Good surface finish

• Consistent, uniform microstructure

 

Chemical Composition % of Steel 8660

CSiMnNiPSCrMo
0.56-0.640.15-0.350.75-1.000.40-0.70max 0.035max 0.040.40-0.600.15-0.25

 

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

 

SAE8660 Strip Steel Hardened Tempered Steel Coil


Place of Origin: China

Manufacturer: Hubei Baomit Steel Materials Co., Ltd.

Steel Grade: 8660

Equivalent Grades:

Supply Condition: Hardened and Tempered (H & T)

Applications: Sawmill Blades, Bandsaw, Chain Parts

Brand: BAOMIT

Min Order: 1 Ton

Package: Pallet

Delivery Time: 4-5 weeks

Payment Term: L/C, T/T, Western Union

Production Capacity: 300 tons per month

8660 Strip Steel Hardened Tempered Steel Coil

"Baomit strip steel stands for precision, quality and high performance. Our factory is excellent in terms of comprehensive delivery indicators, such as straightness, flatness, mechanical properties and metallographic uniformity."

     - Mr. Lixian Yang

Company CEO

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