Gradd a Chyfansoddiad Cemegol (%)
Gradd | C≤ | Si | Mn | P≤ | S≤ | Cr | Mo |
SCM 420TK | 0.18 ~ 0.23 | 0.15 ~ 0.35 | 0.60 ~ 0.85 | 0.030 | 0.030 | 0.90 ~ 1.20 | - |
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 |
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 |
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 |
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 |
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 |
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 |
Nodyn: 1. Nid yw Ni fel amhuredd mewn pibellau dur amrywiol yn fwy na 0.25%, ac nid yw Cu yn fwy na 0.30%;2. Pan fydd y prynwr yn gofyn am ddadansoddiad o'r cynnyrch gorffenedig, mae'r gwyriad a ganiateir fel y nodir yn Nhabl 3 o JIS G0321. |

Gweithgynhyrchu: pibell di-dor (gorffenedig poeth ac oer)
Maint: OD: 15.0 ~ 114mm WT: 2 ~ 20mm
Gradd: SCM 415TK, SCM 420 TK.
Hyd: 6M neu hyd penodedig yn ôl yr angen.
Diwedd: Diwedd Plaen, Diwedd Beveled.


Gradd
Cod dull gweithgynhyrchu (pibell ddur di-dor gorffenedig poeth:SH;Pibell ddur di-dor gorffenedig oer: SC)
Dimensiynau (diamedr enwol X trwch wal nominal neu ddiamedr allanol X trwch wal)
Enw'r gwneuthurwr neu ei frand adnabod
-
- Goddef OD a WT
Adran
Goddefgarwch ar OD
Goddefgarwch ar WT
Dosbarth 1
D<50m
±0.5 mm
S<4mm
+0.6mm
-0.5mm
50mm≤D
±1%
S≥4mm
+1% -12.5%
Dosbarth 2
D<50m
±0.25mm
S<3mm
±0.3mm
50mm≤D
±0.5%
S≥3mm
±10%
Dosbarth 3
D<25m
±0.12 mm
S<2mm
±0.15mm
40mm >D≥25mm
±0.15 mm
50mm >D≥40mm
±0.18 mm
S≥2mm
±8%
60mm >D≥50mm
±0.20 mm
Nodiadau: rhaid talgrynnu goddefiant ar drwch pob wal i un lle degol yn unol â rheol JIS Z 8401
70mm >D≥60mm
±0.23mm
80mm >D≥70mm
±0.25 mm
90mm >D≥80mm
±0.30mm
100mm >D≥90mm
±0.40 mm
D≥100mm
±0.50%
1. Y goddefgarwch OD o bibell ddur di-dor gorffeniad poeth yn ôl Class12. Pibellau dur wedi'u diffodd a'u tymheru yn ôl 4 categori.
- Goddef OD a WT



