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| 원래 장소: | 중국 |
| 브랜드 이름: | YUHONG |
| 인증: | ASME II, ASME III, ABS, LR, DNV, GL , BV, CCS, KR, NK, TUV, PED, GOST, ISO , TS |
| 모델 번호: | ASME SA182 F304H 스테인레스 스틸 단조 링 |
| 최소 주문 수량: | 1개 |
|---|---|
| 포장 세부 사항: | 층 나무 상자 / 팔레트 |
| 배달 시간: | 7일 |
| 지불 조건: | 신용장, 티/티 |
| 제품명: | 안출된 벨소리 | 기준: | ASTM A182, ASME SA182 |
|---|---|---|---|
| 재료: | 304H, 1.4948 | 크기: | 구매자가 그림 요구조건인 것처럼, 맞추어줄 수 있습니다 |
| 모양: | 반지 | NDT: | 100% PT, UT, PMI |
| 애플리케이션: | 열교환기, 보일러, 압력 용기, 증기 터빈, 큰 중앙 난방, 기타 등등. | ||
| 강조하다: | ASME SA182 F304H stainless steel ring,1.4948 steel forged ring,heat exchanger spare parts steel ring |
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ASME SA182 F304H Stainless Steel Forged Ring for Heat Exchanger Application
Function of Forged Rings in Heat Exchangers
These are the heavy structural components, not the tubes themselves:
Tubesheets: The thick drilled ring/plate that holds the tube bundle (e.g., TP321 tubes). F304H provides the strength to withstand high differential pressure between shell-side and tube-side fluids.
Flange Rings: Welded or integral rings at the channel ends for bolting to piping or bonnets.
Channel Barrels / Closures: Cylindrical forged sections for high-pressure inlet/outlet headers.
Bearing / Support Rings: Internal rings supporting tube bundles or flow distributors.
Chemical composition % of ASME SA182 F304H Stainless Steel Forged Ring Heat Exchanger Spare Parts
| Geade | C | Mn | Si | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|---|
| 304H | min: 18.0 max:20.0 | min: 8.0 max: 10.5 | min: 0.04 max:0.10 | 0.75 max | 2.0 max | 0.04 max | 0.03 max | 0.10 max |
Mechanical properties of grade ASTM A182 F304H Flange are displayed in the following table.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
Physical properties of ASME SA182 F304H Stainless Steel Forged Ring Heat Exchanger Spare Parts
| Grade | Density(kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Specific Requirements for Heat Exchanger Spare Parts (Forged Rings)
When used for tubesheets, flanges, or channel barrels, forged rings must meet these critical requirements:
Grain Size: ASME SA182 requires a fine grain size (ASTM No. 7 or finer) for F304H to meet creep design curves. Coarser grains reduce rupture life.
Ultrasonic Examination (UT): For hollow forgings (rings) over specific thicknesses, UT is required to detect internal laminations or porosity.
Liquid Penetrant Examination (PT): Required for surface defect detection on finished machined surfaces (sealing faces of flanges).
Solution Annealing: Must be heated to 1040°C – 1120°C and rapidly quenched (water or rapid air) to put carbides into solution before service.
Application
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