Qib 430 yog ferritic, ncaj chromium, qib uas tsis yog-hardenable, combining zoo corrosion kuj thiab formability yam ntxwv nrog cov cuab yeej siv tau zoo. Nws lub peev xwm los tiv thaiv nitric acid nres tso cai rau nws siv rau hauv kev siv tshuaj lom neeg tshwj xeeb tab sis cov khoom siv hauv tsheb thiab cov khoom siv hluav taws xob sawv cev rau nws daim ntawv thov loj tshaj plaws.
Qib 430F yog qhov dawb-machining version ntawm qib no, muaj nyob rau hauv daim ntawv bar siv rau hauv cov tshuab tsis siv neeg ntsia hlau. Qib 434 yog molybdenum bearing version ntawm Qib 430 thiab muaj cov khoom siv sib xyaw ua ke zoo ib yam. Nws cov molybdenum ntxiv txhim kho corrosion kuj.
Cov khoom no rau 430 tau teev tseg rau cov khoom lag luam tiaj tus (phaj, ntawv thiab coil) hauv ASTM A240 / A240M. Zoo sib xws tab sis tsis tas yuav zoo ib yam khoom yog teev rau lwm yam khoom xws li forgings thiab bar nyob rau hauv lawv cov specifications. Cov khoom ntawm Qib 430F tau teev tseg rau bar hauv ASTM A582.
APPLICATIONS:-
Cov ntawv thov rau 430 qib suav nrog:
Linings rau cov tais diav
Txias txee panels
Automotive trim
Lashing Hlau
Element Supports
Qhov cub trim rings
Fasteners
Chimney Liners
Cov ntawv thov rau 430F qib suav nrog:
Repetition machined Cheebtsam
CORROSION RESISTANCE: -
Qib 430 muaj kev tiv thaiv zoo rau ntau yam corrosive enviornments, nrog rau nitric acid thiab qee cov organic acids. Nws attains nws siab tshaj corrosion kuj thaum nyob rau hauv lub siab polished los yog buffed mob. Feem ntau nws tsis kam rau pitting thiab crevice corrosion kuj yog ze rau ntawm qib 304. Kev ntxhov siab corrosion cracking kuj ntawm Qib 430 yog siab heev, raws li nws yog rau txhua qib ferritic.
Zoo li lwm yam high-sulphur dawb machining qib 430F tau txo qis tsis kam rau pitting thiab crevice corrosion piv rau nws qhov tsis pub dawb machining sib npaug.
KEV KHO MOB: -
Kev daws Annealing - Thaum tshav kub kub mus rau 815-845 degree, tuav rau ½ teev ib 25 hli thickness, qeeb cua sov rau 600 degree thiab sai sai cua txias. Kev txias qeeb los ntawm 540-400 degree yuav ua rau embrittlement.
Sub-Critical anneal – Kub rau 760-815 degree thiab ces cua txias los yog dej quench.
Qib no tsis yog hardenable los ntawm kev kho cua sov.
WELDING:-
Ua ntej cua sov ntawm 150-200 degree yog tias tsim nyog vuam.
Embrittlement nyob rau hauv lub weld hlau thiab tshav kub cuam tshuam cheeb tsam yuav txo tau los ntawm ib tug post-weld anneal ntawm 790-815 degree
Grain refinement yuav tsis tshwm sim.
MACHINING:-
Kev siv tshuab yooj yim dua li cov qauv austenitic qib xws li 304.
Tseem muaj kev nyiam rau galling thiab khaws cov cuab yeej txiav.
Cov raj uas tau maj mam rub tau yooj yim dua rau tshuab dua li cov nyob hauv qhov mob annealed.
Qib 430F, qhov dawb machining version ntawm 430, yog yooj yim heev rau tshuab.
FABRICATION:-
Kev ua haujlwm qis qis ua rau khoov thiab tsim me ntsis yooj yim dua rau qib 304
Tsawg ductility txwv kev ua haujlwm hnyav heev.
Kev khoov hnyav yuav tsum tau ua nrog cov khoov axis ntawm lub kaum sab xis mus rau qhov kev taw qhia dov.
Mob khaub thuas taub hau ntawm 430 hlau yog ua tau.
COMPOSITION:-
| Qib | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 430 | min. max. | - 0.12 | - 1.00 | - 1.00 | - 0.040 | - 0.030 | 16.0 18.0 | - | - 0.75 | - |
| 430F | min. max. | - 0.12 | - 1.25 | - 1.00 | - 0.06 | 0.15- | 16.0 18.0 | - | - | - |
MECHANICAL PROPERTIES:-
| Qib | Tensile zog (MPa) min | Yield Strength 0.2 feem pua Pov Thawj (MPa) min | Elongation (feem pua hauv 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 430 | 450 | 205 | 22 | 89 | 183 |
| 430F | 552 ib id | 379 zoo | 25 yam | - | 262 |
Cim npe nrov: steel hlau stainless 430 kav 430, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, yuav, nqe, pricelist, kev muag, Tshuag, dawb qauv
