- 説明
303 ステンレス丸棒: Composition and Machinability Performance
303 stainless round bar is a free-machining austenitic stainless steel widely used in precision machining, fastener production, and mass manufacturing components. It is developed from 304 stainless steel with the addition of sulfur to significantly improve cutting performance.
Because of its excellent machinability, 303 stainless steel is especially suitable for automatic lathes, CNC加工, and high-volume production where efficiency and tool life are critical.
の化学組成 303 ステンレス鋼
主な特徴は、 303 stainless round bar is the controlled addition of sulfur, which improves chip breaking and reduces tool wear during machining operations.
| 要素 | 代表的な内容 (%) | 関数 |
|---|---|---|
| クロム (Cr) | 17.0 – 19.0 | 耐食性と耐酸化性 |
| ニッケル (で) | 8.0 – 10.0 | Austenitic structure stability and toughness |
| 硫黄 (S) | ≥ 0.15 | Improves machinability and chip breaking |
| 炭素 (C) | ≤ 0.15 | Strength and hardness control |
| マンガン (ん) | ≤ 2.0 | 熱間加工性が向上します |
| シリコン (そして) | ≤ 1.0 | 耐酸化性を高める |
| リン (P) | ≤ 0.20 | Supports machinability (制御されたレベル) |
| 鉄 (鉄) | バランス | 基本行列 |
の主なパフォーマンス特性 303 ステンレス丸棒
303 stainless steel is designed primarily for machining efficiency rather than maximum corrosion resistance. Its free-cutting nature makes it one of the most popular grades for mass production of precision components.
- Excellent machinability among austenitic stainless steels
- 穏やかな環境での優れた耐食性
- Reduced tool wear and longer cutting tool life
- Excellent chip breaking during CNC and lathe machining
- Suitable for high-speed automated production
Role of Sulfur in 303 ステンレス鋼
Sulfur is the key alloying element that differentiates 303 stainless steel from 304. It forms manganese sulfide inclusions, which act as stress concentrators that help break chips during machining.
- Improves cutting efficiency
- Reduces machining resistance
- Enhances productivity in mass production
- Extends tool life in CNC operations
しかし, the addition of sulfur slightly reduces corrosion resistance and weldability compared to 304 ステンレス鋼.
との比較 304 ステンレス鋼
| 学年 | 被削性 | 耐食性 | 主な利点 |
|---|---|---|---|
| 304 | 適度 | 高い | 汎用耐食性 |
| 303 | 素晴らしい | 適度 | Best machinability for production efficiency |
産業上の重要性 303 ステンレス丸棒
303 stainless round bar is widely used in industries that require large-scale machining and precision manufacturing. It significantly reduces production cost by improving machining speed and tool life.
グローバルサプライチェーンにおいて, などのサプライヤー 泰達江華 provide stable-chemistry 303 stainless bars with consistent machinability performance, supporting CNC machining and OEM manufacturing industries.
アプリケーション主導の材料パフォーマンス
- Precision machined components and fittings
- Fasteners such as bolts, nuts, and screws
- Automotive mechanical parts
- Electrical and industrial equipment components
- Mass production CNC turned parts
よくある質問
1. とは何ですか 303 stainless steel mainly used for?
It is mainly used for precision machining parts, ファスナー, and high-volume production components.
2. なぜですか 303 stainless steel easier to machine?
Because it contains sulfur, which improves chip breaking and reduces cutting resistance.
3. は 303 ステンレス鋼の耐食性?
適度な耐食性を持っています, slightly lower than 304 硫黄分が含まれているため.
4. できる 303 stainless steel be welded?
It is not recommended for welding due to reduced weld quality caused by sulfur.
5. Teda Ganghua は供給していますか 303 stainless round bars?
はい, 泰達江華用品 303 stainless steel round bars with stable machinability and export-quality packaging.
