SS904L AISI 904L Stainless hlau (UNS N08904)
Khoom Taw Qhia
AISI 904L stainless hlau (UNS N08904) yog cov hlau alloy siab austenitic stainless hlau. Piv nrog rau 316L, SS904L muaj cov ntsiab lus qis carbon (C), siab dua chromium (Cr) cov ntsiab lus, thiab kwv yees li ob npaug ntawm nickel (Ni) thiab molybdenum (Mo) cov ntsiab lus ntawm316l ua, uas ua rau nws muaj kev kub siab oxidation tsis kam, pitting tsis kam, thiab tsis kam txo cov kua qaub (xws li sulfuric acid). Nitrogen (N) tuaj yeem txo tus nqi ntawm chromium carbide nag lossis daus, yog li txo qhov rhiab heev ntawm rhiab heev, nws kuj txhim kho qhov tsis kam ntawm pitting thiab crevice corrosion los ntawm chlorides. Tshwj xeeb tshaj yog nws ntxiv ntawm tooj liab (Cu) ua rau nws pab tau rau tag nrho cov concentrations ntawm sulfuric acid.
Alloy 904L ua tau zoo dua li lwm cov austenitic stainless hlau vim yog cov alloying ntau dua ntawm nickel thiab molybdenum. Cov qib yog non-magnetic nyob rau hauv tag nrho cov mob thiab muaj zoo heev formability thiab weldability. Cov qauv austenitic kuj muab cov qib no zoo heev toughness, txawm mus rau cryogenic kub Cov ntsiab lus chromium siab txhawb nqa thiab tuav cov zaj duab xis passive uas tiv thaiv cov khoom hauv ntau qhov chaw corrosive. Tsis muaj kev pheej hmoo ntawm intercrystalline corrosion ntawm cua txias los yog vuam vim muaj cov ntsiab lus carbon tsawg. Nws qhov kev pabcuam siab tshaj plaws yog 450 ° C. Qib no yog tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev tswj thiab ntsuas kev siv tubing qhov twg 316 thiab 317L tsis haum.
Alloy 904L yog Ameslikas tsim los tiv thaiv ib puag ncig uas muaj dilute sulfuric acid. Nws kuj tseem muaj kev tiv thaiv zoo rau lwm cov inorganic acids xws li kub phosphoric acid thiab feem ntau cov organic acids.
Alloy 904L tau yooj yim welded thiab ua tiav los ntawm cov txheej txheem khw tsim khoom.
904L stainless hlau (SS904L) yog siv nyob rau hauv roj av, tshuaj, chiv, marine kev loj hlob yees, tso tsheb hlau luam, kav, raj thiab tshav kub exchangers. Rolex thiab lwm yam watches manufacturers kuj siv nws los ua watches
Kev xav tau tshuaj
Alloy 904L (UNS Nr 8904)
Cov ntsiab lus %
| C Cov pa roj carbon | Mn Manganese | P Phosphorous | S Sulfur | Si Silicon | Ni Nickel | Cr Chromium | Mo Molybdenum | N Nitrogen | Cu Tooj |
| 0.020 max | max 2.00 Nws | 0.040 max | 0.030 max | max 1.00 Nws | 23.0-28.0 Nws | 19.0-23.0 Nws | 4.0-5.0 | 0.10 max | 1.00-2.00 Nws |
| Mechanical Properties | |
| Yield zog | 31 Ksi min |
| Tensile zog | 71 hli min |
| Elongation (2 "min) | 35% |
| Hardness (Rockwell B Scale) | 90 HRB max |
| Qhov siab tshaj plaws tso cai (unit: BAR) | ||||||||
| Phab ntsa Thickness (mm) | ||||||||
| 0.89 ib | 1.24 | 1.65 ib | 2.11 | 2.77 ib | 3.96 ib | 4.78 ib | ||
| OD (mm) | 6.35 Nws | ib 393 | 572 ib | 783 ua | 1012 | |||
| 9.53 ib | 253 | 362 ib | 499 ib | 657 ib | 883 ua | |||
| 12.7 ib | 186 | 265 | 362 ib | 476 ib | 646 ib | |||
| 19.05 Nws | 172 | 233 | 304 | 410 | ||||
| 25.4 ib | 128 | 172 | 223 | 299 ib | 443 ib | 549 ib | ||
| 31.8 ib | 136 | 176 | 235 | 345 | 425 | |||
| 38.1 ib | 113 | 146 | 194 | 283 | 348 | |||
| 50.8 ib | 84 | 108 | 143 | 208 | 255 | |||
Certificate Of Honour
ISO9001/2015 Txuj
ISO 45001/2018 Txuj
PED Certificate
TUV Hydrogen compatibility xeem daim ntawv pov thawj
| Tsis muaj. | Loj (mm) | |
| OD | Thk | |
| BA Tube puab nto roughness Ra0.35 | ||
| 1/4 " | 6.35 Nws | 0.89 ib |
| 6.35 Nws | 1.00 Nws | |
| 3/8 " | 9.53 ib | 0.89 ib |
| 9.53 ib | 1.00 Nws | |
| 1/2 " | 12.70 Nws | 0.89 ib |
| 12.70 Nws | 1.00 Nws | |
| 12.70 Nws | 1.24 | |
| 3/4 " | 19.05 Nws | 1.65 ib |
| 1 | 25.40 Nws | 1.65 ib |
| BA Tube puab nto roughness Ra0.6 | ||
| 1/8 " | 3.175 ib | 0.71 ib |
| 1/4 " | 6.35 Nws | 0.89 ib |
| 3/8 " | 9.53 ib | 0.89 ib |
| 9.53 ib | 1.00 Nws | |
| 9.53 ib | 1.24 | |
| 9.53 ib | 1.65 ib | |
| 9.53 ib | 2.11 | |
| 9.53 ib | 3.18 | |
| 1/2 " | 12.70 Nws | 0.89 ib |
| 12.70 Nws | 1.00 Nws | |
| 12.70 Nws | 1.24 | |
| 12.70 Nws | 1.65 ib | |
| 12.70 Nws | 2.11 | |
| 5/8 " | 15.88 Nws | 1.24 |
| 15.88 Nws | 1.65 ib | |
| 3/4 " | 19.05 Nws | 1.24 |
| 19.05 Nws | 1.65 ib | |
| 19.05 Nws | 2.11 | |
| 1 ″ | 25.40 Nws | 1.24 |
| 25.40 Nws | 1.65 ib | |
| 25.40 Nws | 2.11 | |
| 1-1/4 " | 31.75 Nws | 1.65 ib |
| 1-1/2 " | 38.10 Nws | 1.65 ib |
| 2 ″ | 50.80 Nws | 1.65 ib |
| 10 A | 17.30 Nws | 1.20 |
| 15 A | 21.70 Nws | 1.65 ib |
| 20 A | 27.20 Nws | 1.65 ib |
| 25 A | 34.00 Nws | 1.65 ib |
| 32 A | 42.70 Nws | 1.65 ib |
| 40 A | 48.60 Nws | 1.65 ib |
| 50 A | 60.50 Nws | 1.65 ib |
| 8.00 Nws | 1.00 Nws | |
| 8.00 Nws | 1.50 ib | |
| 10.00 Nws | 1.00 Nws | |
| 10.00 Nws | 1.50 ib | |
| 10.00 Nws | 2.00 Nws | |
| 12.00 Nws | 1.00 Nws | |
| 12.00 Nws | 1.50 ib | |
| 12.00 Nws | 2.00 Nws | |
| 14.00 Nws | 1.00 Nws | |
| 14.00 Nws | 1.50 ib | |
| 14.00 Nws | 2.00 Nws | |
| 15.00 Nws | 1.00 Nws | |
| 15.00 Nws | 1.50 ib | |
| 15.00 Nws | 2.00 Nws | |
| 16.00 Nws | 1.00 Nws | |
| 16.00 Nws | 1.50 ib | |
| 16.00 Nws | 2.00 Nws | |
| 18.00 Nws | 1.00 Nws | |
| 18.00 Nws | 1.50 ib | |
| 18.00 Nws | 2.00 Nws | |
| 19.00 Nws | 1.50 ib | |
| 19.00 Nws | 2.00 Nws | |
| 20.00 Nws | 1.50 ib | |
| 20.00 Nws | 2.00 Nws | |
| 22.00 Nws | 1.50 ib | |
| 22.00 Nws | 2.00 Nws | |
| 25.00 Nws | 2.00 Nws | |
| 28.00 Nws | 1.50 ib | |
| BA Tube, Tsis muaj kev thov txog lub puab nto roughness | ||
| 1/4 " | 6.35 Nws | 0.89 ib |
| 6.35 Nws | 1.24 | |
| 6.35 Nws | 1.65 ib | |
| 3/8 " | 9.53 ib | 0.89 ib |
| 9.53 ib | 1.24 | |
| 9.53 ib | 1.65 ib | |
| 9.53 ib | 2.11 | |
| 1/2 " | 12.70 Nws | 0.89 ib |
| 12.70 Nws | 1.24 | |
| 12.70 Nws | 1.65 ib | |
| 12.70 Nws | 2.11 | |
| 6.00 Nws | 1.00 Nws | |
| 8.00 Nws | 1.00 Nws | |
| 10.00 Nws | 1.00 Nws | |
| 12.00 Nws | 1.00 Nws | |
| 12.00 Nws | 1.50 ib | |