17-7PH
설명
항공 그룹의 공급 범위:
비표준 단조품, 원형 막대, 강판, 링, 이음매 없는 파이프
- 17-7PH 자료 소개
17-7PH is an austenite-martensite precipitation hardened stainless steel developed based on 18-8CrNi, also known as controlled phase change stainless steel.
- 화학 성분
| 합금 | C | Mn | 그리고 | P | S | Cr | In | Al |
| 17-7ph | – | – | – | – | – | 16.0 | 6.50 | 0.75 |
| 0.09 | 1.0 | 1.0 | 0.04 | 0.03 | 18.0 | 7.75 | 1.50 |
- 물리적 속성
| 밀도 | 7.65g/cm3 |
| 녹는점 | 1415-1450℃ |
Mechanical properties of 17-7PH 실온에서 합금
| 주바오 합금 | 인장 강도 Rm N/mm2 |
수율 강도 RP0.2N/mm2 |
신장 A5 % |
브리넬 경도 HB |
| 고체 용융 1000~1100℃ 빠른 냉각 | ≤1030 | ≤380 | ≥20 | ≤229 |
| 565℃ 숙성 | ≥1140 | ≥960 | ≥5 | ≥363 |
| 510℃ 숙성 | ≥1230 | ≥1030 | ≥4 | ≥388 |
- 머티리얼 속성
17-7PH is a hardened stainless steel with high strength and hardness, fatigue resistance, good corrosion resistance and die forging. After solid solution treatment, it is an unstable austenite structure with good plastic toughness and processability. After adjustment, the austenite precipitation of carbide phenol composition changes. After martensite transformation treatment, most of the structures are transformed into low-carbon tempered martensite with good toughness. This state is the use state of steel and has good medium-temperature mechanical properties. Corrosion resistance is better than general martensitic stainless steel.
- 적용 분야
항공우주, 화학, 석유화학, 제지 및 금속 가공 산업에서 사용됩니다.
