Dur Di-staen 420 coiliau Ystod Trwch: - 0.025mm – 4.00mm
Dur Di-staen 420 coiliau Lled: - Meddal, Hanner Caled, Hanner Caled, ¾ Caled, Llawn Caled a Gwanwyn Caled
Dur Di-staen 420 coiliau Caledwch: - Isafswm 3.2mm i uchafswm o 2000mm
Dur Di-staen 420 coiliau Gorffen: - 2B, 2D, Bright Annealed, #3 Pwyleg, #4 Pwyleg a mwy
| C | Mn | Si | P | S | Cr | |
|---|---|---|---|---|---|---|
| 420 | 0.15 max | 1.00 max | 1.00 max | 0.04 max | 0.03 max | mun: 12.0 uchafswm: 14.0 |
Cryfder tynnol σ B (MPa) : diffodd a thymeru, Mwy na neu'n hafal i 635
Cryfder cnwd amodol σ0.2 (MPa) : diffodd a thymheru, Mwy na neu'n hafal i 440
Elongation Δ5 ( y cant ) : diffodd a thymheru, Mwy na neu'n hafal i 20
Crebachu adran ψ( cant ) : diffodd a thymeru, Mwy na neu'n hafal i 50
Gwaith effaith AKV (J): diffodd a thymheru, Mwy na neu'n hafal i 63
Caledwch: Anelio, Llai na neu'n hafal i 223HB;
Torri a thymeru, Mwy na neu'n hafal i 192HB
EIDDO MECANYDDOL DUR Di-staen 420 COIL:
| Tymheredd Tymheru ( gradd ) | Cryfder Tynnol (MPa) | Cryfder Cynnyrch 0.2 y cant Prawf (MPa) | Elongation (canran mewn 50mm) | Caledwch Brinell (HB) |
|---|---|---|---|---|
| Annealed * | 655 | 345 | 25 | 241 uchafswm |
| 399 gradd F ( 204 gradd ) | 1600 | 1360 | 12 | 444 |
| 600 gradd F (316 gradd) | 1580 | 1365 | 14 | 444 |
| 800 gradd F ( 427 gradd ) | 1620 | 1420 | 10 | 461 |
| 1000 gradd F (538 gradd) | 1305 | 1095 | 15 | 375 |
| 1099 gradd F ( 593 gradd ) | 1035 | 810 | 18 | 302 |
| 1202 gradd F (650 gradd) | 895 | 680 | 20 | 262 |
Tagiau poblogaidd: gorffeniad coiliau dur di-staen 420, Tsieina, cyflenwyr, gweithgynhyrchwyr, ffatri, prynu, pris, pricelist, ar werth, mewn stoc, sampl am ddim
