설명
목차
- Specifications of Stainless Steel 321 / 321H 플랜지
- Size Range of A182 321 / 321H Pipe Flange
- Chemical Composition of SS 321 / 321H Flange
- Mechanical Properties ASME 321 Pipe Flange
- Types of Stainless Steel 321/321H Pipe Flange
- 321 / 321H Stainless Steel Flange Equivalent Grades
- 321 / 321H SS Blind Flange Stock List
- 스테인레스 스틸의 응용 321 / 321H 플랜지
- FAQs – Stainless Steel 321 / 321H 플랜지
321/321H Stainless Steel Flange
스테인레스 스틸 321 / 321H 플랜지 are titanium-stabilized austenitic stainless steel flanges engineered for excellent performance in high-temperature and corrosive environments. 등급 321 is designed to resist intergranular corrosion after exposure to temperatures in the range of 427–816°C, making it ideal for thermal cycling applications. Grade 321H, with a higher carbon content, offers improved high-temperature strength and creep resistance. These flanges are commonly used in heat exchangers, 압력 용기, 정유소, 배기 시스템. With good weldability, formability, and resistance to oxidation up to 900°C, SS 321/321H flanges are a reliable choice for industries requiring long-term performance in extreme conditions.
Specifications of Stainless Steel 321 / 321H 플랜지
| 표준 | GOST Flange, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092, BS, BS4504, BS 10, EN-1092, DIN, ANSI, ASME, DIN, MSS S44, ISO70051, 안시/ASME B16.5, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Series A & 비, B16.48, EN |
|---|---|
| Pressure Rating ANSI | 수업 1500, 수업 150, 수업 900, 수업 2500, 수업 300, 수업 600, |
| Pressure Calculation in DIN | 10Bar, 16Bar, 25Bar, 40Bar, 6Bar, / PN16, PN64, PN40, PN25, PN10, PN6 |
| JIS | 16 케이, 20 케이, 5케이, 10 케이, 40 케이, 63 케이, 30 케이, |
| UNI | 10Bar 16Bar 6Bar 25Bar 40Bar |
| EN | 6Bar 25Bar 40Bar 10Bar 16Bar |
| Most common Types | 스레드 / Screwed / 서서히 나아가는 / Plate |
| Production technique |
|
| Shapes and Types we produce | Large Male-Female (LMF), 링형 조인트 (RTJ), 편평한 얼굴 (FF), Small Tongue, Small Male-Female (SMF),제기된 얼굴 (RF), Large Tongue & 홈, 홈, Lap-Joint Face (LJF) |
| Test | Direct-reading Spectrograph, Magnetic particle detector, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector |
| 장비 | Pushing Machine, Press machine, Bending machine, Sand-blasting machine, electric bevelling machine etc |
Size Range of A182 321 / 321H Pipe Flange
- UNS S32100 플랜지 : 1/2″ (15 주의) to 48″ (1200주의)
- ASME SA182 F321 Blind Flange : 1/2″ NB – 24″ NB
- SS A182 F321H Slip on Flange : 1/2″ NB – 12″ NB
Chemical Composition of SS 321 / 321H Flange
| 등급 | 기음 | 망 | 그리고 | 피 | 에스 | Cr | N | ~ 안에 | 의 |
| 봄 여름 시즌 321 | 0.08 최대 | 2.0 최대 | 1.0 최대 | 0.045 최대 | 0.030 최대 | 17.00 – 19.00 | 0.10 최대 | 9.00 – 12.00 | 5(C+N) – 0.70 최대 |
| SS321H | 0.04 – 0.10 | 2.0 최대 | 1.0 최대 | 0.045 최대 | 0.030 최대 | 17.00 – 19.00 | 0.10 최대 | 9.00 – 12.00 | 4(C+N) – 0.70 최대 |
Mechanical Properties ASME 321 Pipe Flange
| 밀도 | 녹는점 | 인장강도 | 항복 강도 (0.2%오프셋) | 연장 |
| 8.0 g/cm3 | 1457 ℃ (2650 °F) | 사이 – 75000 , MPa – 515 | 사이 – 30000 , MPa – 205 | 35 % |
Types of SS 321 / 321H Flange
 |  |  |  |
| 블라인드 플랜지 | 랩 조인트 플랜지 | 긴 용접 넥 플랜지 | 플레이트 플랜지 |
 |  |  |  |
| 플랜지 줄이기 | Ring Type Joint Flanges | 슬립 온 플랜지 | 소켓 용접 플랜지 |
 |  |  |  |
| 용접 넥 플랜지 | 혀 & Groove Flanges | 스레드 / Screwed Flanges | 스펙터클 블라인드 플랜지 |
321 / 321H Stainless Steel Flange Equivalent grades
| 기준 | 소재 번호. | 우리를 | JIS | EN |
| 봄 여름 시즌 321 | 1.4541 | S32100 | 그들의 321 | X6CrNiTi18-10 |
| SS321H | 1.4878 | S32109 | SU 321H | X12CrNiTi18-9 |
321 / 321H SS Blind Flange Stock List
| 스테인레스 스틸 321 플랜지 | 321 SS Blind Flange |
| 321H Stainless Steel Slip on Flange | SS A182 F321H Threaded Flange |
| UNS S32100 Reducing Flange | 스테인레스 스틸 1.4541 소켓 용접 플랜지 |
| ASTM A182 F321H Weld Neck Flanges | ASME SA182 F321 Lap Joint Flanges |
| 스테인레스 스틸 1.4541 긴 용접 넥 플랜지 | 321H Stainless Steel Spectacle Blind Flanges |
| UNS S32100 Spades & Ring Spacers | 321 SS Nipoflange |
| SS A182 F321H 5D Weldoflange | ASTM A182 F321H Flange Outlet |
| 스테인레스 스틸 321 단조 플랜지 | 스테인레스 스틸 1.4541 Plate Flange |
| SS A182 F321H Ring Type Joint Flanges | UNS S32100 Raised Face Flanges |
| ASME SA182 F321 Tongue and Groove Flanges | 321H Stainless Steel Male and Female Flange |
| ASTM A182 F321H Reducing Flanges | 321 봄 여름 시즌 ASME B16.5 플랜지 |
| 스테인레스 스틸 321 플랜지 | 스테인레스 스틸 1.4541 BS 10 플랜지 |
| UNS S32100 BS 4504 플랜지 | SS A182 F321H EN 1092-1 플랜지 |
| ASTM A182 F321H SORF Flange | 321H Stainless Steel BLRF Flange |
| 321 SS WNRF Flange | 스테인레스 스틸 321 Series a Lap Joint Ring Flange |
| 스테인레스 스틸 1.4541 PN16 blind flange | UNS S32100 Forged Socket Weld Pipe Flange |
| 321H Stainless Steel Class 300 플랜지에 미끄러짐 | ASTM A182 F321H Slip On Weld Flange |
| SS A182 F321H Forged steel slip on flanges | 321 SS Race face slip on flange |
| 스테인레스 스틸 321 SWRF Flange | ASME SA182 F321 Forged blind flange |
| 321H Stainless Steel groove weld neck flange | 스테인레스 스틸 1.4541 Socket Weld Hub Flange |
| UNS S32100 threaded lap joint flange | 321 SS Slip On Integral flange |
| ASME SA182 F321 Forged integral puddle flange | SS A182 F321H table e long weld neck |
| 321H Stainless Steel Class 150 LBS Flange | ASME SA182 F321 PN10 Forged Flanges |
스테인레스 스틸의 응용 321 / 321H 플랜지
스테인레스 스틸 321 and 321H flanges are widely used in industries that demand high-temperature strength, 내식성, and structural stability. These flanges are ideal for:
Heat Exchangers – Withstand thermal cycling and intergranular corrosion in petrochemical systems.
Furnace and Boiler Components – Provide long-term stability under continuous high-heat service.
Exhaust Manifolds and Ducting – Common in aircraft, automotive, and power plant exhaust systems.
Refinery and Chemical Processing Units – Handle aggressive media and fluctuating pressures.
Pressure Vessels and Reactors – Especially in environments involving organic and inorganic acids.
Thermal Oxidizers and Flue Gas Systems – Withstand oxidative conditions in waste treatment and incineration plants.
Power Generation Plants – Used in steam piping and turbine exhaust sections.
These flanges are especially valued in applications where resistance to sensitization and high-temperature oxidation is critical, making SS 321/321H flanges a preferred choice in high-performance industrial systems.
FAQs – Stainless Steel 321 / 321H 플랜지
Q1: 차이점은 무엇 입니까? 321 and 321H stainless steel flanges?
에이: The main difference lies in the carbon content. 321H has a higher carbon content (0.04–0.10%) compared to 321 (최대 0.08%), which improves high-temperature strength and creep resistance. 321H is preferred for applications above 537°C (1000°F).
Q2: Are 321/321H flanges resistant to intergranular corrosion?
에이: 예. 등급 321 is specifically stabilized with titanium to prevent chromium carbide precipitation, which makes it highly resistant to intergranular corrosion after exposure to high temperatures.
Q3: What temperature range can Stainless Steel 321 / 321H flanges withstand?
에이: These flanges offer excellent performance in continuous service up to 900°C (1650°F), making them ideal for high-temperature industrial environments.
Q4: Can 321/321H flanges be welded?
에이: 예. Both grades offer good weldability using standard welding methods. 하지만, post-weld heat treatment is typically not required for 321, while it may be considered for 321H in certain critical applications.
Q5: In which industries are SS 321 / 321H flanges most commonly used?
에이: They are widely used in oil & 가스, 석유화학, 발전, 항공우주, and thermal processing industries—especially where exposure to elevated temperatures and corrosive gases is frequent.
