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| 起源の場所 | 中国 |
| ブランド名 | JOYRUNS |
| 証明 | ISO9001 |
| モデル番号 | 6mmから140mm |
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Annealing Type
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Detailed Specification (for 42CrMo4 Precision Steel Pipe)
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Full Annealing
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820~850℃, furnace cooling slowly to below 500℃ then air cooling (ensures performance of EN10305-2 precision steel pipe)
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Soft Annealing
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680~700℃, furnace cooling (optimizes processability of 42CrMo4 material)
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Annealing Purpose
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Ensure the 42CrMo4 material of EN10305-2 precision steel pipe has good toughness and processability, meeting the processing requirements of automotive precision components
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Element
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Mass Fraction (%) (42CrMo4 Material)
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C
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0.38~0.45
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Cr
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0.90~1.20
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Mo
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0.15~0.30
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Mn
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0.60~0.90
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Si
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≤0.40
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P
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≤0.035
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S
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≤0.035
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Mechanical Index
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Specification (42CrMo4 EN10305-2 Precision Steel Pipe)
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Tensile Strength
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≥1080MPa
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Yield Strength
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≥930MPa
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Elongation
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≥12%
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Hardness
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40~52HRC
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Material
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Chemical Composition (Mass Fraction, %) (Precision Steel Pipe Material)
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42CrMo4 (EN10305-2)
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C: 0.38~0.45, Cr: 0.90~1.20, Mo: 0.15~0.30
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Domestic 42CrMo
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C: 0.38~0.45, Cr: 0.90~1.20, Mo: 0.15~0.25
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Difference
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The upper limit of Mo content in 42CrMo4 (EN10305-2 precision steel pipe material) is slightly higher than that in domestic 42CrMo
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