AISI S7 / DIN EN 50CrMoV{2}}.2355 / 1.2357 Cov Cuab Yeej Ua Haujlwm Txias Hlau Bar / Qws
Hauv cov cuab yeej steel qauvASTM A681 Cov Lus Qhia Tshwj Xeeb, shock-resisting tool steels raug xaiv los ua pawg S steels raws li AISI kev faib tawm. S1, S2, S5, S6, thiab S7 yog hom kev poob siab-tiv taus cov cuab yeej steel. AISI S7 cov cuab yeej hlau yog cov khoom siv hluav taws xob tiv thaiv huab cua. AISI S7 steel muaj qhov tshwj xeeb cuam tshuam cov khoom ntxiv rau qhov siab tshaj plaws hardenability ntawm kev poob siab tiv thaiv qib ntawm cov cuab yeej hlau. Steel S7 kuj muaj qhov muag muag zoo ntawm qhov kub thiab txias uas ua rau nws muaj peev xwm ua haujlwm kub. Txij li thaum S7 steel hardens nyob rau hauv huab cua, nws kuj muaj kev nyab xeeb thiab ruaj khov nyob rau hauv kev kho cua sov.
AISI S7 cov cuab yeej hlau muaj qhov sib txawv ntawm cov khoom sib txawv, ua rau nws tsim nyog rau ntau yam khoom siv thiab tuag ua haujlwm - qhov kev poob siab-ua haujlwm, nruab nrab kub-ua haujlwm zog, lossis yooj yim ntawm machining thiab kev kho cua sov yog qhov tseem ceeb tshaj plaws.
Qib Hlau | 1.2355/1.2357 | Daim ntawv thov | Tool steel, Pwm Steel |
Cov duab | Round bar | Txuj | AISI, DIN, JIS, GB |
Dimension | ∅ 20 - 1000 hli | Nto | Dub, Peeled, Tig, Grinded |
Cov txheej txheem | Kub dov, Forged | Ultrasonic Test | 100 feem pua UT Passed |
Sib npaug
AISI / SAE | DIN / W. Nr | GB |
S7/T41907 | 1.2355/1.2357 | 5Cr3Mn1SiMo1V |
Chemical Composition (%)
C | Si | Mn | P | S | Cr | Mo | Ni | V |
0.45 0.55 | 0.20 1.00 | 0.20 0.90 | Tsawg dua los yog sib npaug 0.030 | Tsawg dua los yog sib npaug 0.030 | 3.00 3.50 | 1.30 1.80 | 1.25 2.00 | Tsawg dua los yog sib npaug 0.35 |
Neeg kho tshuabCov khoom
| Cov khoom | Metric |
| Hardness, Rockwell C (cua txias los ntawm 941 degree, 649 degree temper kub) | 41 |
| Hardness, Rockwell C (cua txias los ntawm 941 degree, 449 degree temper kub) | 53 |
| Hardness, Rockwell C (cua txias los ntawm 941 degree, 149 degree temper kub) | 57 |
| Modulus ntawm elasticity | 207 GPA |
| Charpy cuam tshuam (V-notch; cua txias los ntawm 941 degree; 425 degree temper kub) | 13.6 J |
| Charpy cuam tshuam (V-notch; cua txias los ntawm 941 degree; 649 degree temper kub) | 16.3 J |
| Charpy cuam tshuam (V-notch; cua txias los ntawm 941 degree; 200 degree temper kub) | 16.9 J |
| Machinability (1 feem pua carbon steel) | 700 - 75.0 feem pua |
| Poisson tus ratio | 0.27-0.30 |
Kev Xa Khoom
- EAF plus (ESR) or EAF plus LF plus VD plus (ESR)
- Kub dov, Forged, Txias kos thiab lwm yam.
-Surface Finish: Dub, Rough Machined, Tig los yog raws li qhov yuav tsum tau ua
-UT 100% dhau
- Txiav kev pab cuam
- Kev tshuaj xyuas thib peb tau txais (SGS, BV thiab lwm yam)
Daim ntawv thov
Vim tias nws cov khoom sib txawv ntawm cov khoom sib txawv, S7 cov cuab yeej steel yog tsim thiab muaj ntau yam rau ntau yam cuab yeej thiab kev siv tuag. AISI S7 Steel tuaj yeem siv rau cov ntawv thov kub thiab txias, nruab nrab kub-ua haujlwm tuag thiab nruab nrab-khiav txias ua haujlwm cov cuab yeej thiab tuag.
Lwm yam kev siv xws li: Bull Riveters, Pob Zeb Breakers (Moll Points), Riveting Dies, Hmoov Hlau Tuag, Notching Dies, Dowels, Drills, Laum Phaj, Hubs, Yas Pwm Dies, Cold Forming Dies, Blanking Dies, Bending Dies, engraving tuag, machined kab noj hniav rau yas molding tuag, tuag-casting tuag, shear hniav thiab Master Hobs.
Forging ntawm S7 Tool Steel
Preheat 1200 degree -1300 degree F. Forge ntawm 2000 degree -2050 degree F. Nres ntawm 1700 degree F thiab maj mam txias.
S7 Tool Steel Thaum tshav kub kub kho
Annealing
Anneal nyob rau hauv ib qho chaw tiv thaiv. Tshav kub sai heev rau 1500 txog 1550 degree F thiab tuav ntawm qhov kub thiab txias rau ib thiab ib nrab teev rau txhua nti ntawm qhov tuab tshaj plaws. Yuav kom tau txais cov khoom zoo tshaj plaws, txias maj mam mus rau 1000 degree F, thiab tom qab ntawd cua txias. Cov txheej txheem annealing no yuav tsum tsim kom muaj zog ntawm Brinell 197 max.
Stress Relief S7 steel Cov Khoom Siv: Thaum tsim nyog los daws cov kab mob ntawm kev ua haujlwm, ua kom sov maj mam mus rau 1050 degree -1250 degree F, cia kom sib npaug, ces txias hauv huab cua.
Preheat: sov steel S7 me ntsis ua ntej them rau hauv qhov cub preheat 1200 degree -1300 degree F, ua ntej hardening.
Harden: 1750 degree F. Quench S7 cov cuab yeej hlau hauv huab cua yog tias hla ntu yog 2-1/2″ lossis me dua; ntu 2-1/2 "mus rau 6" yuav tsum tau roj quenched rau dub (1000 degree F) ua raws li cua txias rau 150 degree F. Loj hla ntu ntawm S7 steel yuav tsum roj quenched rau 150 degree F.
Quench: Quench nyob rau hauv tseem huab cua los yog qhuav cua moj tej tawg.
Temper: Cov cuab yeej steel S7 feem ntau yog tempered ib teev ib nti ntawm ntu tuab rau qhov xav tau cua sov ntawm 2 teev ib nti. Txias nyob rau hauv huab cua mus rau chav tsev kub ntawm ob tempers. Lub tempering kub txawv raws li kev npaj siv. Pom zoo: Rau kev ua haujlwm txias thiab zoo sib xws, qhov pom zoo 400 degree -500 degree F. Cov ntawv thov ua haujlwm kub: siv qhov ntsuas kub ntawm 900 degree -1000 degree F. Tsis txhob npau taws tsawg dua 400 degree F.
Machinability ntawm Tool Steel S7
Thaum S7 steel annealed rau Brinell 197 max, steel S7 yog nyob ntawm 95, piv rau qhov ntsuas ntawm 100 rau 1.00 pct carbon tool steel.
Cim npe nrov: aisi s7 din en 50crmov13-15 1.2355 cuab tam steel bar, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas