냉간 압연 스테인레스 스틸 코일

냉간 압연 스테인레스 스틸 코일 is produced through cold reduction of hot rolled stainless steel, followed by annealing and surface finishing processes. Compared with hot rolled material, cold rolled stainless steel offers better surface quality, 더 엄격한 치수 공차, improved flatness, 그리고 더 높은 강도.

It is widely used in construction, 주방 장비, 자동차 부품, 정밀 제작, 산업 제조업.

1. Common Cold Rolling Process for Stainless Steel

The production of cold rolled stainless steel coil typically involves the following stages:

1. 열간압연 코일 준비

Hot rolled stainless steel coils (usually No.1 finish) are used as raw material. The surface is cleaned and prepared before cold reduction.

2. 산세

The oxide scale formed during hot rolling is removed using acid pickling to ensure a clean surface before cold rolling.

3. 냉간 압연

The material is passed through rolling mills at room temperature to reduce thickness. 이 과정:

• Improves dimensional accuracy

• Increases strength through work hardening

• Enhances surface smoothness

Thickness can be precisely controlled from approximately 0.2 mm 에 3.0 mm.

4. 가열 냉각

After cold reduction, annealing is performed to:

• Restore ductility

• Relieve internal stress

• Refine grain structure

Annealing methods include continuous annealing and bright annealing (학사).

5. 스킨패스 / 템퍼 롤링

A light rolling process improves flatness, 표면 마감, 및 기계적 특성.

6. 표면 마무리

Depending on application, the coil may undergo:

• 2B 마무리 (매끄러운, 무광택 산업용 표면)

• 학사 마무리 (bright reflective surface)

• No.4 브러시 마감

• 헤어라인 (HL) 마치다

• 거울 연마

2. Common Grades of Cold Rolled Stainless Steel Coil

Cold rolled stainless steel is available in various grades depending on corrosion resistance, 힘, 및 신청 요구 사항.

오스테 나이트 스테인레스 스틸 (가장 일반적인)

페라이트계 스테인레스강

Martensitic Stainless Steel

3. Mechanical Property Characteristics

냉간 압연은 변형 경화를 통해 강도를 증가시킵니다..

Typical improvements include:

• Higher yield strength compared to hot rolled material

• Improved tensile strength

• Better surface flatness

• More precise thickness tolerance

Hardness and strength vary depending on temper condition:

• 연화 소둔 (full ductility)

• 1/4 딱딱한

• 1/2 딱딱한

• 풀 하드

4. Applications of Cold Rolled Stainless Steel Coil

Cold rolled stainless steel coil is commonly used in:

• 건축 장식

• 엘리베이터 패널

• Kitchen and catering equipment

• 자동차 내장 부품

• Electronic enclosures

• Precision stamped components

• 의료 장비

Its combination of smooth surface, 치수 정밀도, 내식성이 뛰어나 구조적, 장식적 목적 모두에 적합합니다..