We're a leading manufacturer of spring steel flat bar, and we can do the smelting and rollind by our own factory.
Spring steel flat bar
1. Material: 65Mn, 60Si2Mn, SUP9, SUP9A, SUP7, SUP10, SUP11, 55CrMnA, 60CrMnA,50CrV4,50CrVA etc.
2.Thickness: 6~35mm, Width: 40~150mm, Length: 2~8m, according to your requirements.
2.Thickness: 6~35mm, Width: 40~150mm, Length: 2~8m, according to your requirements.
3. Surface: smooth plain; double grooved.
4. Standard: GB, ASTM, JIS
5. Usage: springs and chains for car and agriculture machines. Anchor plate. Laminated leaf spring.
6. Package: Standard export packing. Coverd by PP paper outside.
7. Chemical composition:
China
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Components
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HB=<
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America
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Japan
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Germany
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C
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Si
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Mn
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Cr
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V
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B
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P
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S
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=<
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65Mn
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1066
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0.62-0.70
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0.17-0.37
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0.90-1.20
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≤0.25
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0.035
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0.035
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302
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55Si2Mn
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9255
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55Si7
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0.52-0.60
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1.50-2.00
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0.60-0.90
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≤0.35
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0.035
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0.035
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302
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60Si2Mn
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9260
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SUP6
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60Si7
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0.56-0.64
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1.50-2.00
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0.60-0.90
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≤0.35
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0.035
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0.035
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321
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60Si2MnA
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9260
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SUP6
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60Si7
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0.56-0.64
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1.60-2.00
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0.60-0.90
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≤0.35
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0.030
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0.030
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321
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55CrMnA
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5155
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SUP9
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55Cr3
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0.52-0.60
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0.17-0.37
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0.65-0.95
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0.65-0.95
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0.030
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0.030
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321
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60CrMnA
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5160
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SUP9A
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0.56-0.64
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0.17-0.37
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0.70-1.00
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0.70-1.00
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0.030
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0.030
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321
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50CrVA
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6150
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SUP10A
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51CrV4
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0.46-0.54
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0.17-0.37
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0.50-0.80
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0.80-1.10
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0.10-0.20
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0.030
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0.030
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321
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60CrMnBA
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51B60
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SUS11
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58CrMnB4
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0.56-0.64
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0.17-0.37
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0.70-1.00
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0.70-1.00
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0.0005-0.004
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0.030
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0.030
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321
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55SiMnVB
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51B60
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SUS11
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58CrMnB4
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0.52-0.60
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0.70-1.00
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0.70-1.00
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≤0.35
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0.08-0.16
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0.0005-0.0035
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0.030
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0.030
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321
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60SiCrBA
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0.56-0.64
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1.40-1.80
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0.40-0.70
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0.90-1.20
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0.10-0.20
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0.030
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0.030
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