Non-Standard Stainless Steel Forged Fitting

1. Ring-Rolled Mastery

• Mga singsing na walang tahi: Ø 200 – 4 200 mm × H 40 – 600 mm; timbang 15 kg - 12 t
• Mga profile: hugis-parihaba, L-section, T-section, near-net groove—walang dagdag na billet waste
• Mga Grado: 304/304L, 316/316L, 321, 317L, 2205, 2507, 904L, 6-Mo, 17-4PH – solusyon o duplex na na-annealed sa vacuum furnace
• As-rolled tolerance: +3/-1 mm; machining allowance ≤ 2 mm bawat mukha

2. Pabrika ng Forged Fittings

• Elbows, tee, crosses, laterals: ½” – 24” (DN15 – 600);_schedule 10 – 160
• Mga espesyal na anggulo: 22.5°, 47°, 65° – closed-die forged sa isang init, weld-end prep sa pamamagitan ng plasma+bevel
• Rating ng presyon: hanggang 9 000 psi (API 6A PSL-3) – na-verify sa pamamagitan ng hydro-test 1.5 × P
• Mga end form: BW, SW, NPT, BSPP, socket-weld+thread combo, Victaulic groove

3. Value-Added Workflow

• ESR o AOD refined ingots → 4 000 t press → ring-mill → solution anneal → pickling → CNC contour → dye-penetrant → laser marking → data-book
• Post-machining: polish 180-400 grit, mirror #8, satin brush, electropolish Ra ≤ 0.2 µm
• Pagsubok: PMI, ferrite 30-60 % (duplex), Charpy –46 °C, radiography, pressure calibration

4. Market Edge

• Pakyawan MOQ: 1 pirasong prototype → 1 000+ singsing; presyo break sa 50, 200, 500 mga PC
• Paghahatid: singsing blangko 10-12 araw; tapos na mga kabit 15-20 araw; dagat/hangin DDP sa buong mundo
• Dokumentasyon: EN 10204 3.1, 3.2 witness, MTC, heat chart, PMI map, ulat ng dimensyon na naka-pack sa bawat papag

5. Mga Karaniwang Paggamit sa Off-Catalogue

• Mga subsea manifold hub – 2507 super-duplex ring, groove inlay 625
• Pharmaceutical swept-tee 47°, ID polish < 0.4 µm, electropolish finish
• Cryogenic LNG elbow 316L, –196 °C impact 45 J, bevel 37.5° ±0.5°
• Food-grade long-radius 90°, 180 grit ID, tri-clamp ends, lot-number laser etched