| 17mn4 konpozisyon chimik | |||||||
| Egalize | Eleman max la (%) | ||||||
| 17mn4 | C | Si | Mn | P | S | Al | Cr |
| 0.14-0.20 | 0.40 | 0.90-1.40 | 0.035 | 0.030 | 0.02 | 0.25 | |
| CU | NI | Mwa | NB | Ti | V | ||
| 0.3 | 0.3 | 0.10 | 0.01 | 0.03 | 0.03 | ||
| Egalize | 17mn4 pwopriyete mekanik | |
| Epesè | Rekòlt | |
| 17mn4 | mm | Min MPA |
| 6-16 | 290 | |
| 16-40 | 285 | |
| 40-60 | 280 | |
| 60-100 | 255 | |
| 100-150 | 230 | |
1. Ki pwosesis tretman chalè ki nesesè?
Repons:
Pwosesis manifakti estanda:
Nòmalize (880-950°C) for thickness >30mm
Kòm-woule kondisyonpou epesè mwens pase oswa egal a 30mm
Si ou vle estrès sekou rkwir(580-620 degre)
Pwosesis kontwòl tèmomekanik (TMCP)Disponib pou pwopriyete amelyore
2. Ki pwosedi soude yo rekòmande pou 17mn4?
Repons:
Pratik soude esansyèl:
Chèz: 100-150°C (for t>25mm)
Consommables: DIN 8556 E 42 4 B 42 oswa ekivalan
Chalè opinyon: 1.8-3.2 kJ/mm
Entèrpass tanperati: Mwens pase oswa egal a 250 degre
Post-Weld Chalè Tretman (PWHT): 580-620°C × 1hr/25mm (for t>35mm)
3. Ki kote 17mn4 tipikman espesifye?
Repons:
Aplikasyon komen yo enkli:
Veso medyòm-presyon(10-40 bar)
Tanbou chofaj ak Tèt
Kokiy echanjeur chalè
Pwosesis ekipman nan plant chimik yo
Tank depo pou itilize endistriyèl
Konparezon ak klas menm jan an
| Egalize | Estanda | Sede fòs | Kle diferans |
|---|---|---|---|
| 17mn4 | DIN 17155 | Pi gran pase oswa egal a 355 MPa | Estanda Alman ak kontni optimize MN |
| P355gh | EN 10028-2 | Pi gran pase oswa egal a 355 MPa | Ekivalan Ewopeyen an |
| A516 Gr.70 | Astm | Pi gran pase oswa egal a 260 MPa | US estanda, pi ba fòs sede |
Baj popilè: DIN 17155 17 Mn4 pou plak veso presyon, Lachin DIN 17155 17 Mn4 pou manifakti plak veso presyon, founisè, faktori
