Sebopeho sa Kereiti le Lik'hemik'hale (%)
Kereiti | C≤ | Si | Mn | P≤ | S≤ | Cr | Mo |
Tlhaloso: SCM 420TK | 0.18 ~ 0.23 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | - |
Tlhaloso: SCM 415TK | 0.13 ~ 0.18 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.30 |
Tlhaloso: SCM 418TK | 0.16 ~ 0.21 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.30 |
Tlhaloso: SCM 420TK | 0.18 ~ 0.23 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.30 |
Tlhaloso: SCM 430TK | 0.28 ~ 0.33 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.30 |
Tlhaloso: SCM 435TK | 0.33 ~ 0.38 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.30 |
Tlhaloso: SCM 440TK | 0.38 ~ 0.43 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.30 |
Tlhokomeliso: 1. Ni e le ho se hloeke ka liphaephe tse sa tšoaneng tšepe ha e fete 0,25%, 'me Cu ha e fete 0,30%;2. Ha moreki a kopa tlhahlobo ea sehlahisoa se felileng, kheloha e lumelletsoeng e boletsoe ho Lethathamo la 3 la JIS G0321. |
Tlhahiso: phala e se nang moeli (e chesang e felile ebile e bata e felile)
Boholo: OD: 15.0 ~ 114mm WT: 2 ~ 20mm
Kereiti: SCM 415TK,SCM 420 TK.
Bolelele: 6M kapa bolelele bo boletsoeng kamoo ho hlokahalang.
Qetello: Plain End, Beveled End.
Kereiti
Mokhoa oa ho etsa khoutu (phala e chesang e felileng e se nang seamless: SH;Peipi ea tšepe e sa koalehang e batang: SC)
Litekanyo (ka lebitso la bophara X botenya ba lebota ka lebitso kapa bophara bo kantle ba X botenya ba lebota)
Lebitso la moetsi kapa lebitso la lona
-
- Mamello ea OD le WT
Karohano
Mamello ho OD
Mamello ho WT
Sehlopha sa 1
D<50m
± 0.5 limilimithara
S<4mm
+ 0.6 limilimithara
-0.5 limilimithara
50mm≤D
±1%
S≥4mm
+ 1% -12,5%
Sehlopha sa 2
D<50m
± 0.25 limilimithara
S<3mm
± 0.3 limilimithara
50mm≤D
±0.5%
S≥3mm
±10%
Sehlopha sa 3
D<25m
± 0.12 limilimithara
S<2mm
± 0.15 limilimithara
40mm>D≥25mm
± 0.15 limilimithara
50mm>D≥40mm
± 0.18 limilimithara
S≥2mm
±8%
60mm>D≥50mm
± 0.20 limilimithara
Lintlha: mamello botenya bo bong le bo bong ba lebota bo tla fetisetsoa sebakeng se le seng ho latela molao oa JIS Z 8401.
70mm>D≥60mm
± 0.23 limilimithara
80mm>D≥70mm
± 0.25 limilimithara
90mm>D≥80mm
± 0.30 limilimithara
100mm>D≥90mm
± 0.40 limilimithara
D≥100mm
±0.50%
1. Mamello ea OD ea phala e chesang e chesang e se nang seamless ho latela Class12. Liphaephe tsa tšepe tse tingoeng le tse halefileng ho latela mekhahlelo ea 4.
- Mamello ea OD le WT