STS630 STS631 Nag los nag lossis daus
Tso lus
Tau Sts630 ncav HRC 50 lossis siab dua los ntawm kev kho cua sov?
Nws yog qhov nyuaj kom ua tiav ncaj qha, thiab nws yuav tsum tau ua ke nrog nto nto lossis nitregling kev kho mob.
Vim li cas Sts631 xav tau kev kho mob txias?
Kev kho mob khaub thuas ({-73 degree) txhawb nqa kev hloov pauv ntawm Austenite ntawm Austenite ntawm kev sib tw, muab ntau dua kev ua kom muaj zog ntxiv.
Dab tsi yog lub corrosion tsis kam ntawm ob yam khoom?
StS631 muaj cov ntsiab lus CR thiab NI cov ntsiab lus thiab kev ua kom zoo dua li STS630, tshwj xeeb tshaj yog nyob rau hauv acidic ib puag ncig.
{{0 {0}} ps vs 17-7} p.c pali hlau
| Teem nqi | Lub hom phiaj | Ntaus | Muaj zog lawm me nyuam | Cov Nta Tseem Ceeb |
|---|---|---|---|---|
| Sts630 | JIS G4303 | MARTENCITIC PHIC STEEL | CU nag lossis daus | Siab lub zog, corrosion tsis kam, thiab weldability; siv nyob rau hauv aerospace thiab lub zog sectors. |
| Ss631 | JIS G4303 | Austenitic-martensitic ph steel | Ib daus daus | Ntsuas lub zog thiab tawv; Qhov zoo tagnrho rau cov ntawv thov kev ntxhov siab zoo li Springs thiab Fasteners. |
Tshuaj lom neeg tshuaj (wt%)
| Lub ntsiab | Sts630 (17-4 pH) | Sts631 (17-7 pH) |
|---|---|---|
| C | Tsawg dua los yog sib npaug rau 0. 07 | Tsawg dua los yog sib npaug rau 0. 09 |
| Cr | 15.5–17.5 | 16.0–18.0 |
| Ni | 3.0–5.0 | 6.5–7.7 |
| CU | 3.0–5.0 | - |
| Al | - | 0.75–1.50 |
| Nb | 0.15–0.45 | - |
Kev Loj Siab Ph Hlau Kub Kho Cov Txheej Txheem
Kev Kho Mob
Lub hom phiaj: Dissolve carbides thiab ua ib lub matrix zoo nkauj.
Qho so:
StS630: 1020-1060 degree (1870-1940 F) rau 1 teev.
Sts631: 1000-1030 degree (1830-1885 degree f) rau 1 teev.
Cua txias: Huab cua lossis dej quenching mus rau suppress carbide tsim.
Kev Kho Mob Laus
Lub hom phiaj: Preplipitive txhawb nqa theem (piv txwv li, Cu-nplua nuj hais rau STS630, NI-AL rau STS631).
Tsis:Sts630:
H900: 480 Qib (896 Degree F) × 4 teev → Hardness Hrc 40-45.
H1150: 620 degree (1148 Degree F) × 4 teev → kev lom zem thiab tawv.
Ss631:
TH1 {{0 50: 760 Qib F) {{+ 15 → Qib (59 Qib F) × 1.5 teev.
RH950: Kev Kho Mob Txias ({-73 degree / {}}}}} degree f) × 1 teev → hrc 43-48.
STS630 Cov Khoom Siv Neeg Kho Tshuab
| Ntiag tug | StS630 (H900) | Sts631 (th1050) |
|---|---|---|
| Paib lub zog | Ntau dua los yog sib npaug rau 1100 MPa | Ntau dua los yog sib npaug rau 1035 mpa |
| Lub zog tensile | Ntau dua los yog sib npaug rau 1380 MPa | Ntau dua los yog sib npaug rau 1240 MPa |
| Elongation | Ntau dua los yog sib npaug rau 10% | Ntau dua los yog sib npaug rau 12% |
| Kev nyuaj | HRC 40-45 | HRC 40-45 |
| Corrosion Kuj | Nruab Nrab (zoo ib yam li 304) | Zoo heev (acidic ib puag ncig) |