Bar Rownd Dur Di-staen
Disgrifiad
Gweithdrefn gynhyrchu:
Elfennau crai (C, Fe, Ni, Mn, Cr a Cu), wedi'u mwyndoddi'n ingotau gan finery AOD, wedi'u rholio'n boeth i'r wyneb du, yn piclo i hylif asid, wedi'u sgleinio gan beiriant yn awtomatig a'u torri'n ddarnau
Safonau:
ASTM A276, A484, A564, A581, A582, EN 10272, JIS4303, JIS G 431, JIS G 4311 a JIS G 4318
Dimensiynau:
Rholio poeth: Ø5.5 i 110mm
Tynnu oer: Ø2 i 50mm
ffugio: Ø110 i 500mm
Hyd arferol: 1000 i 6000mm
Goddefgarwch: h9&h11
Nodweddion:
Ymddangosiad braf o sglein cynnyrch oer-rolio
Cryfder tymheredd uchel braf
Caledu gwaith braf (ar ôl prosesu magnetig wan)
Datrysiad cyflwr anfagnetig
Yn addas ar gyfer cymwysiadau pensaernïol, adeiladu a chymwysiadau eraill
Ceisiadau:
Maes adeiladu, diwydiant adeiladu llongau
Deunyddiau addurno a hysbysfwrdd awyr agored
Bws y tu mewn a'r tu allan i ddeunydd pacio ac adeilad a ffynhonnau
Canllawiau, electroplatio ac electroplatio crogdlysau a bwydydd
Yn rhydd o gyrydiad a chrafiad i fodloni gofynion penodol amrywiol feysydd peiriannau a chaledwedd
Gwybodaeth Sylfaenol
Cymwysiadau Cyffredin
Mae gan fariau Rownd Dur Di-staen Gradd 316 ystod enfawr o gymwysiadau, gellir eu torri, eu ffurfio a'u plygu, eu edafu, eu drilio a'u weldio i'w defnyddio yn:
Cymwysiadau Morol
Amgylcheddau Cemegol
Echelau a Siafftiau
Grils a Gratiau
Sgriniau
Grils Diogelwch
Peirianneg Gyffredinol
Paratoi Arwyneb a Haenau
Yn wahanol i ddur ysgafn, mae cemeg dur di-staen yn golygu bod y prosesau a'r dulliau ar gyfer diogelu a gorffen Dur Di-staen Gradd 316 yn dra gwahanol i ddur ysgafn.Bydd y rhan fwyaf o orffeniadau arwyneb dur gwrthstaen yn cael eu cymhwyso'n fecanyddol (Caboli) neu'n gemegol (Goddefol).Bydd y gorffeniad arwyneb cywir yn cael effaith sylweddol ar berfformiad ac ymddangosiad eich dur di-staen.
Un o'r ystyriaethau pwysicaf ar gyfer perfformiad ac ymddangosiad Dur Di-staen yw glendid.Mae angen cadw arwynebau yn rhydd o ronynnau o fetelau eraill, yn enwedig duroedd aloi neu garbon.Mae gan bren hefyd halogion a fydd yn gelod ac yn staenio dur gwrthstaen.
Graddau bar dur di-staen
| Gradd | Gradd | Cydran Cemegol % | ||||||||||
| C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Arall | ||
| 301 | 1.431 | ≤0.15 | 16.00-18.00 | 6.00-8.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | ≤0.10 | - |
| 304 | 1. 4301 | ≤0.07 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 304L | 1. 4307 | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 304H | 1.4948 | 0.04-0.10 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 309 | 1.4828 | ≤0.20 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 309S | * | ≤0.08 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 310 | 1.4842 | ≤0.25 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.50 | - | - | - |
| 310S | * | ≤0.08 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.50 | - | - | - |
| 314 | 1.4841 | ≤0.25 | 23.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | 1.50-3.00 | - | - | - |
| 317 | * | ≤0.08 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | - | 0.1 | - |
| 317L | 1.4438 | ≤0.03 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | - | 0.1 | - |
| 321 | 1.4541 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | Ti5(C+N)~0.70 |
| 321H | * | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | Ti5(C+N)~0.70 |
| 347 | 1.455 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | Nb≥10*C%-1.10 |
| 347H | 1.494 | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | Nb≥10*C%-1.10 |
| 409 | S40900 | ≤0.03 | 10.50-11.70 | 0.5 | ≤1.00 | ≤0.040 | ≤0.020 | - | ≤1.00 | - | ≤0.030 | Ti6(C+N)~0.50 Nb:0.17 |
| 410 | 1Cr13 | 0.08-0.15 | 11.50-13.50 | 0.75 | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | - |
| 420 | 2Cr13 | ≥0.15 | 12.00-14.00 | - | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | - |
| 420J2 | 3Cr13 | 0.26-0.35 | 12.00-14.00 | - | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | - |
| 430 | 1Cr17 | ≤0.12 | 16.00-18.00 | - | ≤1.0 | ≤0.040 | ≤0.030 | - | ≤1.0 | - | - | - |
| 416 | Y1Cr13 | ≤0.15 | 12.00-14.00 | 3) | ≤1.25 | ≤0.060 | ≥0.15 | - | ≤1.00 | - | - | - |
| 444 | S44400 | ≤0.025 | 17.50-19.50 | 1 | ≤1.00 | ≤0.040 | ≤0.030 | 1.75-2.5 | ≤1.00 | - | 0.035 | Ti+Nb:0.2+4(C+N)~0.80 |
| 446 | S44600 | ≤0.20 | 23.00-27.00 | 0.75 | ≤1.5 | ≤0.040 | ≤0.030 | 1.50-2.50 | ≤1.00 | - | ≤0.25 | - |
| 431 | 1Cr17Ni2 | ≤0.20 | 15.00-17.00 | 1.50-2.50 | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤0.80 | - | - | - |
| 630 | 17-4PH | ≤0.07 | 15.00-17.50 | 3.00-5.00 | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | 3.00-5.00 | - | Nb 0.15-0.45 |
| 631 | 17-7PH | ≤0.09 | 16.00-18.00 | 6.50-7.50 | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | ≤0.50 | - | Al 0.75-1.50 |
| 632 | 15-5PH | ≤0.09 | 14.00-16.00 | 3.50-5.50 | ≤1.00 | ≤0.040 | ≤0.030 | 2.00-3.00 | ≤1.00 | 2.5-4.5 | - | Al 0.75-1.50 |
| 904L | N08904 | ≤0.02 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | ≤0.045 | ≤0.035 | ≤1.00 | 0.1 | Cu: 1.0-2.0 | ||
