Keterangan
Daftar Isi
- Specifications of Stainless Steel 321 / 321H Flensa
- Size Range of A182 321 / 321H Pipe Flange
- Komposisi Kimia SS 321 / 321H Flange
- Mechanical Properties ASME 321 Flensa Pipa
- Types of Stainless Steel 321/321H Pipe Flange
- 321 / 321H Stainless Steel Flange Equivalent Grades
- 321 / 321H SS Blind Flange Stock List
- Aplikasi Baja Tahan Karat 321 / 321H Flensa
- FAQs – Stainless Steel 321 / 321H Flensa
321/321H Stainless Steel Flange
Baja Tahan Karat 321 / 321H Flensa are titanium-stabilized austenitic stainless steel flanges engineered for excellent performance in high-temperature and corrosive environments. Nilai 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. Kelas 321H, with a higher carbon content, offers improved high-temperature strength and creep resistance. These flanges are commonly used in heat exchangers, bejana tekan, unit kilang, dan sistem pembuangan. 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 Flensa
| Standar | Flensa gost, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092, BS, BS4504, BS 10, EN-1092, DIN, ANSI, ASME, DIN, MSS S44, ISO70051, ANSI/ASME B16.5, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Seri A & B, B16.48, EN |
|---|---|
| Peringkat Tekanan ANSI | Kelas 1500, Kelas 150, Kelas 900, Kelas 2500, Kelas 300, Kelas 600, |
| Perhitungan Tekanan dalam DIN | 10Batang, 16Batang, 25Batang, 40Batang, 6Batang, / PN16, PN64, PN40, PN25, PN10, PN6 |
| JIS | 16 K, 20 K, 5K, 10 K, 40 K, 63 K, 30 K, |
| UNI | 10Batang 16Bar 6Bar 25Bar 40Bar |
| EN | 6Batang 25Bar 40Bar 10Bar 16Bar |
| Jenis yang paling umum | berulir / Kacau / Tertempa / Piring |
| Teknik produksi |
|
| Bentuk dan Tipe yang kami produksi | Jantan-Wanita Besar (LMF), Sambungan Tipe Cincin (RTJ), Wajah Datar (FF), Lidah Kecil, Laki-Laki-Perempuan Kecil (SMF),Wajah Terangkat (Federasi Rusia), Lidah Besar & Alur, Alur, Wajah Lap-Sendi (LJF) |
| Tes | Spektrograf pembacaan langsung, Detektor partikel magnetik, Mesin uji hidrostatik, Detektor sinar-X, Detektor cacat trasonik UI |
| Peralatan | Mesin Pendorong, Mesin pers, Mesin pembengkok, Mesin peledakan pasir, mesin bevelling listrik dll |
Size Range of A182 321 / 321H Pipe Flange
- UNS S32100 Flens : 1/2″ (15 catatan) ke 48″ (1200catatan)
- ASME SA182 F321 Blind Flange : 1/2″ Catatan – 24″ Catatan
- SS A182 F321H Slip on Flange : 1/2″ Catatan – 12″ Catatan
Komposisi Kimia SS 321 / 321H Flange
| Nilai | C | M N | Dan | P | S | Kr | N | Di dalam | Dari |
| SS 321 | 0.08 maks | 2.0 maks | 1.0 maks | 0.045 maks | 0.030 maks | 17.00 – 19.00 | 0.10 maks | 9.00 – 12.00 | 5(C+N) – 0.70 maks |
| SS 321H | 0.04 – 0.10 | 2.0 maks | 1.0 maks | 0.045 maks | 0.030 maks | 17.00 – 19.00 | 0.10 maks | 9.00 – 12.00 | 4(C+N) – 0.70 maks |
Mechanical Properties ASME 321 Flensa Pipa
| Kepadatan | Titik lebur | Kekuatan Tarik | Kekuatan Hasil (0.2%Mengimbangi) | Pemanjangan |
| 8.0 gram/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Types of SS 321 / 321H Flange
 |  |  |  |
| Flensa Buta | Flensa Sambungan Putaran | Flensa Leher Las Panjang | Flensa Pelat |
 |  |  |  |
| Mengurangi Flensa | Flensa Sambungan Tipe Cincin | Selipkan Flensa | Flensa Las Soket |
 |  |  |  |
| Flensa Leher Las | Lidah & Flensa Alur | berulir / Flensa Kacau | Flensa Buta Tontonan |
321 / 321H Stainless Steel Flange Equivalent grades
| STANDAR | BAHAN NO. | KITA | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
321 / 321H SS Blind Flange Stock List
| Baja Tahan Karat 321 Flens | 321 SS Blind Flange |
| 321H Stainless Steel Slip on Flange | SS A182 F321H Threaded Flange |
| UNS S32100 Mengurangi Flange | Baja Tahan Karat 1.4541 Flensa Las Soket |
| ASTM A182 F321H Weld Neck Flanges | ASME SA182 F321 Lap Joint Flanges |
| Baja Tahan Karat 1.4541 Flensa Leher Las Panjang | 321H Stainless Steel Spectacle Blind Flanges |
| UNS S32100 Sekop & Pengatur Jarak Cincin | 321 SS Nipoflange |
| SS A182 F321H 5D Weldoflange | ASTM A182 F321H Flange Outlet |
| Baja Tahan Karat 321 Flensa Tempa | Baja Tahan Karat 1.4541 Flensa Pelat |
| SS A182 F321H Ring Type Joint Flanges | UNS S32100 Flensa Wajah Terangkat |
| ASME SA182 F321 Tongue and Groove Flanges | 321H Stainless Steel Male and Female Flange |
| ASTM A182 F321H Reducing Flanges | 321 SS ASME B16.5 Flensa |
| Baja Tahan Karat 321 Flensa | Baja Tahan Karat 1.4541 BS 10 Flensa |
| UNS S32100 BS 4504 Flensa | SS A182 F321H EN 1092-1 Flensa |
| ASTM A182 F321H SORF Flange | 321H Stainless Steel BLRF Flange |
| 321 SS WNRF Flange | Baja Tahan Karat 321 Seri Flange Cincin Sambungan Lap |
| Baja Tahan Karat 1.4541 Flensa buta PN16 | UNS S32100 Flensa Pipa Las Soket Tempa |
| 321H Stainless Steel Class 300 slip pada flensa | ASTM A182 F321H Slip On Weld Flange |
| SS A182 F321H Forged steel slip on flanges | 321 SS Race face slip on flange |
| Baja Tahan Karat 321 Flensa SWRF | ASME SA182 F321 Forged blind flange |
| 321H Stainless Steel groove weld neck flange | Baja Tahan Karat 1.4541 Flensa Hub Las Soket |
| UNS S32100 flensa sambungan pangkuan berulir | 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 Flensa LBS | ASME SA182 F321 PN10 Forged Flanges |
Aplikasi Baja Tahan Karat 321 / 321H Flensa
Baja Tahan Karat 321 and 321H flanges are widely used in industries that demand high-temperature strength, ketahanan terhadap korosi, and structural stability. These flanges are ideal for:
Penukar Panas – 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 Flensa
Q1: Apa perbedaan antara 321 and 321H stainless steel flanges?
A: The main difference lies in the carbon content. 321H has a higher carbon content (0.04–0,10%) compared to 321 (maks 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?
A: Ya. Nilai 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?
A: 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?
A: Ya. Both grades offer good weldability using standard welding methods. Namun, 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?
A: They are widely used in oil & gas, petrokimia, pembangkit listrik, luar angkasa, and thermal processing industries—especially where exposure to elevated temperatures and corrosive gases is frequent.
