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合金鋼

高い強度と靭性、耐疲労性。

Alloy Steel in CNC Machining

Alloy steel is carbon steel enhanced with additional elements such as chromium, nickel, molybdenum, manganese, and vanadium to improve its mechanical and physical properties. It is widely used in CNC machining for components that require higher strength, toughness, hardness, and wear resistance than standard carbon steel.

Different alloying elements and heat-treatment conditions allow alloy steel to achieve specific performance characteristics for demanding applications. Depending on the grade, alloy steel can provide excellent fatigue resistance, dimensional stability, and durability under heavy loads.

Alloy steel is commonly used for shafts, gears, bushings, fasteners, tooling components, automotive parts, and industrial machinery. The correct grade and heat treatment should be selected based on the required strength, hardness, machinability, and operating environment.

価格

$$$

リードタイム：

< 10日以内

壁の厚さ：

0.75 mm

公差：

±0.125mm (±0.005″)

最大部品サイズ：

200 x 80 x 100 cm

対象学年：

4140 Alloy Steel, 4130 Alloy Steel, 4340 Alloy Steel

4140 Alloy Steel

4140 is a chromium-molybdenum alloy steel known for its high strength, toughness, fatigue resistance, and good wear resistance. It can be heat treated to achieve higher hardness and is commonly used for shafts, gears, bolts, tooling, and machine components.

引張強度、降伏点（MPa） 655

疲労強度（MPa） 370

破断伸び（%） 25

硬度（ブリネル） 197

密度（g/cm³） 7.85

4130 Alloy Steel

4130 is a chromium-molybdenum steel that provides a strong combination of strength, toughness, weldability, and fatigue resistance. It is widely used in structural and mechanical applications where high strength and relatively low weight are important.

引張強度、降伏点（MPa） 435

疲労強度（MPa） 360

破断伸び（%） 25

硬度（ブリネル） 156

密度（g/cm³） 7.85

4340 Alloy Steel

4340 is a nickel-chromium-molybdenum alloy steel known for its high strength, toughness, and fatigue resistance. It can achieve high hardness through heat treatment and is commonly selected for highly loaded mechanical components.

引張強度、降伏点（MPa） 470

疲労強度（MPa） 470

破断伸び（%） 18

硬度（ブリネル） 217

密度（g/cm³） 7.85

Surface Finishing Options for Alloy Steel

CNC machined alloy steel parts can undergo different surface finishing and treatment processes to improve corrosion resistance, hardness, wear resistance, appearance, and service life.

機械加工
ブラックオキサイド
無電解ニッケルめっき
ニッケルメッキ
Zinc Plating
不動態化
研磨
ブラッシュ仕上げ
サンドブラスト
パウダーコーティング

Pros and Cons of Alloy Steel CNC Machining

Alloy steel machining provides high strength, toughness, and wear resistance, making it suitable for demanding mechanical applications. However, its hardness and machining characteristics can vary significantly depending on the grade and heat-treatment condition.

High Strength: Alloy steel can provide significantly higher strength than many standard steels, making it suitable for heavily loaded components.
Excellent Toughness: Many alloy steel grades can withstand impact and mechanical stress without easily fracturing.
Wear Resistance: Alloying elements and heat treatment can improve resistance to abrasion and mechanical wear.
Good Fatigue Resistance: Certain alloy steel grades perform well under repeated loading and cyclic stress.
Heat Treatment Capability: Alloy steel can often be heat treated to achieve specific combinations of hardness, strength, and toughness.

Higher Machining Difficulty: Some alloy steel grades become harder to machine, particularly after heat treatment.
Potential Corrosion: Unlike stainless steel, many alloy steels require protective coatings or finishes to improve corrosion resistance.
Higher Material Cost: Alloy steel can be more expensive than basic carbon steel grades.
Heat Generation: Machining harder alloy steels can generate significant heat, requiring proper cutting parameters and tooling.

説明

申し込み

CNCマシニングは、金属やプラスチックから優れた機械的特性、精度、再現性を持つ部品を製造します。3軸および5軸CNCフライス加工が可能です。

強み

優れた機械的特性、高精度と再現性

弱点

3Dプリンターよりも大きな形状制限

プロパティ

リードタイム

< 10日以内

壁厚

0.75 mm