ASTM 4720
2020-04-14 21:37:14
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Steel Grade |
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ASTM 4720 |
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Tpye |
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Special quality ball and roller bearing steel①（ASTMA535—1992） |
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CHEMICAL COMPOSITION |
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C(％) |
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0.17～0.22 |
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Si(％) |
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0.15～0.35 |
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Mn(％) |
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0.50～0.70 |
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P(％)≤ |
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0.015 |
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S(％)≤ |
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0.015 |
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Cr(％) |
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0.35～0.55 |
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Mo(％) |
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0.15～0.25 |
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Ni(％) |
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0.90～1.20 |
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Other(％) |
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② |
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Remark： |
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①, The steel grade is AISI/SAE series, the content have been adjusted for P, S and individual Si. |
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②, It should have the following elements in steel if not specified: Cr≤0.20％，Mo≤0.10％，Ni≤0.25％，Cu≤0.35％. |
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③, The whole aluminum and oxygen content should be the following:Alt≤0.050％，O2≤0.0015％. |
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ASTM 4720
2020-04-14 21:37:14
|
|
|
|
|
Steel Grade |
: |
ASTM 4720 |
|
Tpye |
: |
Special quality ball and roller bearing steel①（ASTMA535—1992） |
|
|
|
|
|
CHEMICAL COMPOSITION |
|
|
|
C(％) |
: |
0.17～0.22 |
|
Si(％) |
: |
0.15～0.35 |
|
Mn(％) |
: |
0.50～0.70 |
|
P(％)≤ |
: |
0.015 |
|
S(％)≤ |
: |
0.015 |
|
Cr(％) |
: |
0.35～0.55 |
|
Mo(％) |
: |
0.15～0.25 |
|
Ni(％) |
: |
0.90～1.20 |
|
Other(％) |
: |
② |
|
|
|
|
|
|
|
|
|
Remark： |
|
|
|
①, The steel grade is AISI/SAE series, the content have been adjusted for P, S and individual Si. |
|
②, It should have the following elements in steel if not specified: Cr≤0.20％，Mo≤0.10％，Ni≤0.25％，Cu≤0.35％. |
|
③, The whole aluminum and oxygen content should be the following:Alt≤0.050％，O2≤0.0015％. |
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Special Steel, Tapping Machine, Cold Heading Machine Supplier in China-Copy Right By Hacer Technology
Special Steel, Tapping Machine, Cold Heading Machine Supplier in China-Copy Right By Hacer Technology
