Could everyone please **help identify what type of metal this is?** ! Urgent!
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This post was last edited by Aibang Machinery on 2009-8-13 at 11:08. The percentage composition of the material is as follows: C:0.25, Si:0.42, Mn:0.65, P:0.024, S:0.0064; Cu, Cr:1.08, Mg:0.12. Grain size: grade 8. Matrix structure: ferrite + banded pearlite. Tensile strength: 645 MPa. Elongation: 23%. Hardness: HB179. What type of material is this? ! ! What are the materials that can replace it? Thank you all!
This post was last edited by zhangyong6404 on 2009-8-13 11:51. Isn’t this a diamond? . Hehe
This post was last edited by zhangyong6404 on 2009-8-13 at 12:49. Did the original poster make a mistake? The last value should be Mo0.12, right? Based on the carbon content, it should fall within the category of structural steel or cast steel. Chemical composition of alloy structural steel for studs: Steel grade – Chemical composition (%): C, Si, Mn, P, S, Mo, Cr, Ni, V, B. 40MnB: 0.37–0.44, 0.17–0.37, 1.10–1.40, ≤0.035, ≤0.035, –, ≤0.30, ≤0.30, 0.0005–0.0035, ≤0.30. 40MnVB: 0.37–0.44, 0.17–0.37, 1.10–1.40, ≤0.035, ≤0.035, –, ≤0.30, ≤0.30, 0.05–0.10, 0.0005–0.0035, ≤0.30. 40Cr: 0.37–0.44, 0.17–0.37, 0.50–0.80, ≤0.035, ≤0.035, –, 0.80–1.10, ≤0.30, –, ≤0.30. 30CrMoA: 0.26–0.33, 0.17–0.37, 0.40–0.70, ≤0.025, ≤0.025, 0.15–0.25, 0.80–1.10, ≤0.30, –, ≤0.25. 35CrMoA: 0.32–0.40, 0.17–0.37, 0.40–0.70, ≤0.025, ≤0.025, 0.15–0.25, 0.80–1.10, ≤0.30, –, ≤0.25. 35CrMoVA: 0.30–0.38, 0.17–0.37, 0.40–0.70, ≤0.025, ≤0.025, 0.20–0.30, 1.00–1.30, ≤0.30, 0.10–0.20, –, ≤0.25. 25Cr2MoVA: 0.22–0.29, 0.17–0.37, 0.40–0.70, ≤0.025, ≤0.025, 0.25–0.35, 1.50–1.80, ≤0.30, 0.15–0.30, –, ≤0.25. 40CrNiMoA: 0.37–0.44, 0.17–0.37, 0.50–0.80, ≤0.025, ≤0.025, 0.15–0.25, 0.60–0.90, 1.25–1.65, –, ≤0.25. Chemical composition of cast steel ZG275-485H: Chemical composition (%): C, Si, Mn, P; residual elements: Ni, Cr, Cu, Mo, V; total: ≤0.25, 0.50, 1.20, 0.04, 0.04, 0.30, 0.30, 0.30, 0.15, 0.05, 0.80
Yes, the final value is Mo:0.12. I know nothing about chemistry; could the friend upstairs tell me what this actually is?