X120mn12 スチール
X120Mn12 steel is a high manganese austenitic steel with 優れた靭性, 耐摩耗性, and work-hardening capability. Compared to Mn12, it delivers enhanced hardness and longer service life in high-impact, high-wear applications, making it an ideal choice for クラッシャーライナー, grinding mill liners, and heavy-duty wear components.
- 説明
X120Mn12 is a high manganese austenitic steel widely used in wear-resistant and high-impact applications. It is characterized by 優れた靭性, 強力な加工硬化能力, and high abrasion resistance.
This material is suitable for mining, クラッシャーライナー, 粉砕機, earth-moving machinery, and other environments where heavy impact and severe wear occur.
化学組成
典型的な化学組成は、 X120Mn12 ensures a balance between 耐摩耗性と靭性:
| 要素 | 代表的な範囲 (重量%) | 関数 |
|---|---|---|
| 炭素 (C) | 1.10 – 1.40 | 硬度と表面加工硬化の増加 |
| マンガン (ん) | 11.0 – 14.0 | オーステナイトの安定化, 靭性, 耐摩耗性 |
| シリコン (そして) | ≤ 1.0 | Deoxidation and improved strength |
| リン (P) | ≤ 0.07 | 管理された不純物 |
| 硫黄 (S) | ≤ 0.03 | 管理された不純物 |
| クロム (Cr) | ≤ 2.0 | Improves hardness and wear resistance |
| ニッケル (で) | ≤ 1.0 | 靭性を高める |
| 鉄 (fe) | バランス | 卑金属 |
機械的性質
| 財産 | 代表値 |
|---|---|
| 降伏強さ | 350 – 450 MPa |
| 抗張力 | 750 – 1100 MPa |
| 伸長 | ≥ 35% |
| 硬度 (溶体化処理) | 180 – 220 HB |
| 硬度 (努力を重ねた) | まで 500 HB |
主な特長:
-
Strong work-hardening under repeated impact
-
High toughness and ductility
-
Excellent wear resistance after work hardening
-
溶体化処理状態では非磁性
Comparison with Mn12 Steel
| 特徴 | X120Mn12 | Mn12 |
|---|---|---|
| 炭素 (C) | 1.10 – 1.40% | 0.90 – 1.20% |
| マンガン (ん) | 11.0 – 14.0% | 11.0 – 13.0% |
| 硬度 (溶体化処理) | 180 – 220 HB | 160 – 200 HB |
| Work-Hardened Hardness | まで 500 HB | まで 480 HB |
| 靭性 | 高い | 適度 |
| 一般的な使用方法 | クラッシャーライナー, 粉砕機, バケットライナー | 滝, ホッパー, light-impact wear parts |
まとめ: X120Mn12 offers higher carbon content and slightly higher manganese, resulting in better work-hardening ability and wear resistance compared to Mn12. While both steels are high manganese austenitic grades, X120Mn12 is generally preferred for heavier impact and extreme abrasion environments.
