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Chemical composition list:
| New brand | Original brand number | Original chemical composition | Amorphous alloy intermediate | ||||||||||
| C | Si | Mn | Cr | Ni | Mo | Cu | S | P | V | Re | Adding amount | ||
| NFFM1 | Cr15Mo3MnRe (JM3) | 2.40～2.80 | 0.30～0.80 | 0.50～1.50 | 14.0～16.0 | － | 2.00~2.40 | － | ≤0.06 | ≤0.10 | － | ≤0.20 | internal control |
| NFFM2 | Cr26Mo2MnRe(JM4) | 2.30～3.00 | 0.50～0.70 | 0.50～1.50 | 25.0～28.0 | 1.00～2.00 | |||||||
| NFFM3 | Cr15Mo2MnRe(JM5) | 2.60～2.70 | 0.30～0.80 | 0.50～1.50 | 15.0～16.5 | 1.00～2.00 | |||||||
| NFFM4 | ZG30Cr14MnMoNi4Re(JM7) | 0.30～0.35 | ≤0.60 | ≤0.80 | 12.0～14.0 | 4.00～4.50 | 0.60～0.80 | ≤0.10 | |||||
| NFFM5 | ZG40CrMnMoV(JM8) | 0.35～0.45 | 1.00～2.00 | 1.00～～1.50 | 1.50～2.50 | － | 0.60~1.00 | ≤0.20 | ≤0.30 | ||||
| NFFM6 | Cr14MoMnV(JM9) | 1.50～1.60 | ≤0.60 | ≤0.60 | 12.0～14.0 | 0.60～0.80 | ≤0.20 | 0.60～0.80 | |||||
| New brand | Original brand number | Mechanical properties (after adjustment by adding amorphous alloy) | Mechanical properties (before adding amorphous alloy and adjusting) | ||||
| HardnessHRc | Bending strength, N/mm2 | Impact toughness ak, J/cm2 | HardnessHRc | Bending strength, N/mm2 | Impact toughness ak, J/cm2 | ||
| NFFM1 | Cr15Mo3MnRe (JM3) | 58 | 920 | 8 | 55 | 840 | 5 |
| NFFM2 | Cr26Mo2MnRe(JM4) | 50 | 940 | 10 | 45 | 850 | 6 |
| NFFM3 | Cr15Mo2MnRe(JM5) | 50 | 940 | 10 | 42 | 850 | 6 |
| NFFM4 | ZG30Cr14MnMoNi4Re(JM7) | 50 | 950 | 10 | 42 | 855 | 7 |
| NFFM5 | ZG40CrMnMoV(JM8) | 45 | 960 | 10 | 38 | 860 | 7.5 |
| NFFM6 | Cr14MoMnV(JM9) | 55 | 920 | 12 | 50 | 840 | 8 |
Chemical composition list:
| New brand | Original brand number | Original chemical composition | Amorphous alloy intermediate | ||||||||||
| C | Si | Mn | Cr | Ni | Mo | Cu | S | P | V | Re | Adding amount | ||
| NFFM1 | Cr15Mo3MnRe (JM3) | 2.40～2.80 | 0.30～0.80 | 0.50～1.50 | 14.0～16.0 | － | 2.00~2.40 | － | ≤0.06 | ≤0.10 | － | ≤0.20 | internal control |
| NFFM2 | Cr26Mo2MnRe(JM4) | 2.30～3.00 | 0.50～0.70 | 0.50～1.50 | 25.0～28.0 | 1.00～2.00 | |||||||
| NFFM3 | Cr15Mo2MnRe(JM5) | 2.60～2.70 | 0.30～0.80 | 0.50～1.50 | 15.0～16.5 | 1.00～2.00 | |||||||
| NFFM4 | ZG30Cr14MnMoNi4Re(JM7) | 0.30～0.35 | ≤0.60 | ≤0.80 | 12.0～14.0 | 4.00～4.50 | 0.60～0.80 | ≤0.10 | |||||
| NFFM5 | ZG40CrMnMoV(JM8) | 0.35～0.45 | 1.00～2.00 | 1.00～～1.50 | 1.50～2.50 | － | 0.60~1.00 | ≤0.20 | ≤0.30 | ||||
| NFFM6 | Cr14MoMnV(JM9) | 1.50～1.60 | ≤0.60 | ≤0.60 | 12.0～14.0 | 0.60～0.80 | ≤0.20 | 0.60～0.80 | |||||
| New brand | Original brand number | Mechanical properties (after adjustment by adding amorphous alloy) | Mechanical properties (before adding amorphous alloy and adjusting) | ||||
| HardnessHRc | Bending strength, N/mm2 | Impact toughness ak, J/cm2 | HardnessHRc | Bending strength, N/mm2 | Impact toughness ak, J/cm2 | ||
| NFFM1 | Cr15Mo3MnRe (JM3) | 58 | 920 | 8 | 55 | 840 | 5 |
| NFFM2 | Cr26Mo2MnRe(JM4) | 50 | 940 | 10 | 45 | 850 | 6 |
| NFFM3 | Cr15Mo2MnRe(JM5) | 50 | 940 | 10 | 42 | 850 | 6 |
| NFFM4 | ZG30Cr14MnMoNi4Re(JM7) | 50 | 950 | 10 | 42 | 855 | 7 |
| NFFM5 | ZG40CrMnMoV(JM8) | 45 | 960 | 10 | 38 | 860 | 7.5 |
| NFFM6 | Cr14MoMnV(JM9) | 55 | 920 | 12 | 50 | 840 | 8 |
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