그룹 Co., 주식 회사를 붙드는 Yuhong
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닝보 Yuhongweiye 국제 무역 Co., 주식 회사
원래 장소: | 중국 |
브랜드 이름: | YUHONG |
모델 번호: | Astm A928 Uns S31803 슈퍼 듀플렉스 스테인리스강 파이프 |
최소 주문 수량: | 1 |
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가격: | NEGOTIABLE |
포장 세부 사항: | 플라스틱 캡과 층 나무로 된 케이스 /Iron Case/ 번들 |
배달 시간: | 20-80 |
지불 조건: | L/C (신용장), 전신환 |
인증: | BV, ISO, CE, SGS etc | 표준: | ASTM A928 |
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재료: | S31803 | 시험: | 등등, 시험을 평평하게 해 HT; 확장 시험, 제1 수은 질산 시험; 암모니아 수증기 시험; 화학 분석; 현미경 검사; 긴장 테스트. |
상술: | Astm A928 Uns S31803 슈퍼 듀플렉스 스테인리스강 파이프 | 타입: | 이음새가 없고는/용접하는 |
애플리케이션: | 장식, 산업 등. | 형태: | Round.square.Rectangle |
서피스: | BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D | 처리: | 닦고 추운 채 끌어내지고 질소 보호에 의해서 어닐링됩니다 |
허용한도: | ±1% | ||
하이 라이트: | Astm A928 Duplex Stainless Steel Pipes,Uns S31803 Duplex Stainless Steel Pipes,Astm A928 uns s31803 pipe |
Astm A928 uns S31803 super duplex stainless steel pipe
We are one of the biggest manufactures of stainless steel & duplex steel & alloy steel tubes and pipes in China. With development more than 20 years, we have accumulated a great many clients all around the world and Yuhong products also won the great praise among the customers.
Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
Duplex stainless steels are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels. The duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316.
Duplex stainless steels are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.
Property data given in this document is typical for flat rolled products covered by ASTM A240/A240M. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.
Equal Grade
STANDARD | WERKSTOFF NR. | UNS |
Duplex UNS S31803 | 1.4462 | S31803 |
Duplex UNS S32205 | 1.4462 | S32205 |
UNS S31803 Duplex Pipe Chemical Composition
Grade | Duplex S31803 | Duplex S32205 |
C | 0.030 max. | 0.030 max. |
Mn | 2.00 max. | 2.00 max. |
Si | 1.00 max. | 1.00 max. |
P | 0.030 max. | 0.030 max. |
S | 0.020 max. | 0.020 max. |
Cr | 22.0 – 23.0 | 21.0 – 23.0 |
Ni | 4.50 – 6.50 | 4.50 – 6.50 |
Mo | 3.0 – 3.5 | 2.50 – 3.50 |
N | 0.14 – 0.20 | 0.08 – 0.20 |
Fe | 63.72 min. | 63.54 min |
UNS S31803 Duplex Pipe Mechanical Properties
Element | Duplex S31803 | Duplex S32205 |
Density | 7.805 | 7.805 |
Melting Point | 0.285 | 0.285 |
Tensile Strength | 1420 – 1465 | 1420 – 1465 |
Yield Strength (0.2%Offset) | 2588 – 2669 | 2588 – 2669 |
Elongation | 25 min. | 25 min. |
UNS S31803 Duplex Pipe Physical Properties
Density | Thermal Expansion | Modulus of Elasticity | Thermal Conductivity | Electrical Resistivity |
g/cm3 | K | Gpa | W/m.k | Ω.m |
7.805 | 13.7*10-6 | 200 | 19 | 0.085*10-6 |
Application
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