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합금강

높은 강도와 견고함, 피로에 강합니다.

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.

가격

$$$

리드 타임:

< 10일 미만

벽 두께:

0.75 mm

허용 오차:

±0.125mm(±0.005″)

최대 부품 크기:

200 x 80 x 100 cm

선택 가능한 학년:

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.

인장 강도, 항복 강도 (MPa) 655

피로 강도 (MPa) 370

파단 시 신장률 (%) 25

경도 (브리넬) 197

밀도 (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.

인장 강도, 항복 강도 (MPa) 435

피로 강도 (MPa) 360

파단 시 신장률 (%) 25

경도 (브리넬) 156

밀도 (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.

인장 강도, 항복 강도 (MPa) 470

피로 강도 (MPa) 470

파단 시 신장률 (%) 18

경도 (브리넬) 217

밀도 (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.

가공됨
블랙 산화물
무전해 니켈 도금
니켈 도금
Zinc Plating
패시베이션
연마
브러시 마감
샌드블라스팅
파우더 코팅

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.

설명

애플리케이션

CNC 가공은 금속과 플라스틱에서 뛰어난 기계적 특성, 정확성 및 반복성을 갖춘 부품을 생산합니다. 3축 및 5축 CNC 밀링이 가능합니다.

강점

우수한 기계적 특성, 높은 정확도 및 반복성

약점

3D 프린팅보다 더 큰 형상 제한 사항

속성

리드 타임

< 10일 미만

벽 두께

0.75 mm