304L yog qhov qis carbon version ntawm 304. Nws yog siv rau hauv cov ntsuas hnyav rau kev txhim kho weldability.
304H, qhov sib txawv ntawm cov pa roj carbon ntau, kuj muaj rau kev siv ntawm qhov kub thiab txias.
| C | Si | Mn | P | S | Ni | Cr | Mo | N | |
| SUS 304 | 0.08 ib | 0.75 ib | 2.00 Nws | 0.045 ib | 0.030 Nws | 8.50-10.50 Nws | 18.00-20.00 Nws | - | 0.10 |
| SUS 304 L | 0.030 Nws | 1.00 Nws | 2.00 Nws | 0.045 ib | 0.030 Nws | 9.00-13.00 Nws | 18.00-20.00 Nws | - | - |
| 3 04 h | 0.030 Nws | 0.75 ib | 2.00 Nws | 0.045 ib | 0.030 Nws | 8.00-10.50 Nws | 18.00-20.00 Nws | - | - |
Mechanical Properties
| Qib | Tensile zog (MPa) min | Yield zog 0.2% Pov thawj (MPa) min | Elongation (% hauv 50 mm) min | Hardness | |||
| Rockwell B (HR B) max | Brinell (HB) max | HV | |||||
| 304 | 515 | 205 | 40 | 92 | 201 | 210 | |
| 304l ua | 485 ib | 170 | 40 | 92 | 201 | 210 | |
| 3 04 h | 515 | 205 | 40 | 92 | 201 | - | |
304H kuj tseem muaj qhov yuav tsum tau ua rau cov nplej loj ntawm ASTM No 7 lossis coarser.
Lub cev muaj zog
| Qib | Qhov ceev (kg / m3) | Elastic Modulus (GPa) | Qhov nruab nrab Coefficient ntawm Thermal Expansion (μm / m / ° C) | Thermal conductivity (W / mK) | Kev kub ceev 0-100 ° C (J / kg.K) | Hluav taws xob tsis kam (nΩ.m) | |||
| 0-100 ° C | 0-315 ° C | 0-538 ° C | ntawm 100 ° C | ntawm 500 ° C | |||||
| 304 / L / H | 8000 | 193 | 17.2 ib | 17.8 ib | 18.4 ib | 16.2 | 21.5 ib | 500 | 7 20 |
Kwv yees qib sib piv rau 304 stainless hlau
| Qib | UNS No | Laus British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Lub npe | ||||
| 304 | S30400 | 30 4s31 | 58 E | 1.4301 ib | X5CrNi18-10 | 2332 ib | TIAB SA 304 |
| 304l ua | S30403 | 30 4s11 | - | 1.4306 ib | X2CrNi19-11 | 2352 ib | SUS 304 L |
| 3 04 h | S30409 | 30 4s51 | - | 1.4948 ib | X6CrNi18-11 | - | - |
Cov kev sib piv no tsuas yog kwv yees xwb. Daim ntawv teev npe yog npaj raws li kev sib piv ntawm cov khoom siv zoo sib xws tsis yog raws li lub sijhawm ntawm cov ntawv cog lus sib npaug. Yog tias qhov sib npaug tiag tiag xav tau thawj cov ntsiab lus yuav tsum tau sab laj.
Cov qhab nia xaiv tau
| Qib | Vim li cas nws thiaj yuav raug xaiv los ntawm 304 |
| 301l ua | Kev ua haujlwm siab dua qib qib hardening yog xav tau rau qee yam yob tsim los yog ncab tsim cov khoom. |
| 302 QHIA | Tsawg ua hauj lwm hardening tus nqi yog xav tau rau txias forging ntawm screws, bolts thiab rivets. |
| 303 | Ntau dua machinability xav tau, thiab qis dua corrosion kuj, formability thiab weldability tau txais. |
| 316 | Kev tiv thaiv siab dua rau pitting thiab crevice corrosion yog xav tau, nyob rau hauv ib puag ncig chloride |
| 321 | Kev tiv thaiv zoo dua rau qhov kub ntawm ib puag ncig 600-900 ° C yog xav tau ... 321 muaj zog kub dua. |
| 3 CR12 | Tus nqi qis dua yog yuav tsum tau, thiab qhov txo qis corrosion thiab ua rau cov xim tsis zoo tuaj yeem ua tau. |
| 430 | Tus nqi qis dua yog yuav tsum tau, thiab txo qhov kev tiv thaiv corrosion thiab cov yam ntxwv ntawm kev tsim khoom tau txais. |
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Post lub sij hawm: Jan-03-2024
