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스테인리스 스틸

높은 인장 강도, 부식 및 내열성.

Stainless Steel in CNC Machining

Stainless steel is a family of steel alloys containing chromium, which provides a protective oxide layer and gives the material its excellent resistance to corrosion and oxidation. It is widely used in CNC machining for components that require strength, durability, hygiene, and resistance to moisture or chemicals.

Different stainless steel grades provide different combinations of corrosion resistance, strength, hardness, machinability, and temperature performance. Austenitic grades such as 304 and 316 are widely used for general-purpose and corrosion-resistant applications, while 17-4 PH provides higher strength and hardness after heat treatment.

Stainless steel can be CNC machined into complex and precise components for industries including medical, food processing, aerospace, automotive, marine, chemical processing, and industrial equipment.

Available Stainless Steel at Elite Mold Tech:

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:

Stainless Steel 304, 316, 17-4 PH

스테인리스 스틸 304

Stainless Steel 304 is one of the most widely used stainless steel grades for CNC machining. It provides excellent corrosion resistance, good strength, and good formability, making it suitable for general industrial, food processing, medical, and consumer applications.

인장 강도, 항복 강도 (MPa) 215

피로 강도 (MPa) 240

파단 시 신장률 (%) 40

경도 (브리넬) 123

밀도 (g/cm³) 8.00

Stainless Steel 316

Stainless Steel 316 provides improved corrosion resistance compared with 304, particularly in chloride-rich and marine environments. Its molybdenum content improves resistance to pitting and crevice corrosion, making it suitable for chemical, marine, medical, and food-processing applications.

인장 강도, 항복 강도 (MPa) 205

피로 강도 (MPa) 240

파단 시 신장률 (%) 40

경도 (브리넬) 149

밀도 (g/cm³) 8.00

스테인리스 스틸 17-4 PH

17-4 PH is a precipitation-hardening stainless steel that provides high strength, hardness, and good corrosion resistance. It can be heat treated to achieve different mechanical properties and is commonly used for demanding aerospace, industrial, and mechanical components.

인장 강도, 항복 강도 (MPa) 1000

피로 강도 (MPa) 510

파단 시 신장률 (%) 10

경도 (브리넬) 293

밀도 (g/cm³) 7.75

Surface Finishing Options for Stainless Steel

CNC machined stainless steel parts can undergo various surface finishing processes to improve appearance, corrosion resistance, wear resistance, hygiene, and overall surface quality.

가공됨
비드 블라스팅
샌드블라스팅
텀블링
연마
전기 연마
패시베이션
브러시 마감
무전해 니켈 도금
PVD Coating
파우더 코팅

Pros and Cons of Stainless Steel CNC Machining

Stainless steel provides an excellent combination of corrosion resistance, strength, durability, and appearance, making it suitable for demanding CNC applications. However, its hardness and work-hardening behavior can make machining more challenging than softer materials.

Excellent Corrosion Resistance: Stainless steel can withstand moisture, chemicals, and many corrosive environments without rapidly degrading.
High Strength: Many stainless steel grades provide strong mechanical performance for demanding components.
Excellent Durability: Stainless steel offers good resistance to wear, impact, and mechanical stress.
Hygienic Surface: Its smooth and corrosion-resistant surface makes it suitable for food processing, medical, and pharmaceutical applications.
High Temperature Performance: Several stainless steel grades can maintain useful mechanical properties at elevated temperatures.

More Difficult to Machine: Stainless steel can generate higher cutting forces and may work harden during machining.
Higher Tool Wear: Improper cutting conditions can accelerate tool wear, particularly with harder stainless steel grades.
Higher Material Cost: Stainless steel generally costs more than mild steel and some aluminum alloys.
Heat Management: Stainless steel can retain heat near the cutting zone, requiring suitable cutting parameters and coolant strategies.