Dab tsi yog 1.4057 cov khoom sib npaug rau ASTM?
Tso lus
1.4057 SS khoom yog dab tsi?
ASTM 431, lossis 1.4057 stainless hlau, yog qib martensite rau kev siv engineering. Qhov muaj pes tsawg leeg sib txawv, tab sis tus qauv 1.4057 stainless hlau yuav suav nrog: 15-17% chromium; 2-2.5% npib tsib xee; thiab 0.12-0.22% carbon. Nws kuj tseem yuav suav nrog me me ntawm molybdenum, silicon, thiab phosphorus. Nws tuaj yeem ua tiav rau hauv ntau yam khoom siv, nrog rau cov ntawv, coils, raj, tuav, thiab cov xov hlau.
Dab tsi yog 1.4057 cov khoom sib npaug rau ASTM?
Cov khoom sib npaug ncaj qha rau X17CrNi16-2 yog AISI 431 (USA), uas tseem hu ua UNS S43100. Lwm cov qib sib npaug suav nrog EN 1.4057, JIS SUS431, thiab BS 431S29.
| European Union | Teb Chaws Asmeskas | ISO | Tuam Tshoj | Nyiv | |||||
| Txuj | Lub npe (Material Number) | Txuj | Qib (UNS) | Txuj | Qib (ISO naj npawb) | Txuj | Lub npe (Code) | Txuj | Qib |
| EN 10088-2; EN 10088-3; TS EN 10088-1 |
X17CrNi16-2 (1.4057) | AISI; ASTM A240 / A240M; ASTM A276 / A276M; ASTM A959 Cov Khoom Siv Hluav Taws Xob |
TIAB SA 431 (NWS S43100) |
TS EN ISO 15510 | X17CrNi16-2 (4057-431-00-X) | GB/T 1220; GB/T 3280 |
17Cr16Ni2 (S43120) | JIS G4303; JIS G4304 |
SUS 431 |
|
431 (1.4057) Tshuaj muaj pes tsawg leeg |
|||||||
| Qib | C | Mn | P | S | Si | Cr | Ni |
| 431 (1.4057) | 0.12 - 0.20 | 1.0 max | 0.04 max | 0.03 max | 1.0 max | 15.0 - 18.0 | 2.0 - 3.0 |
Mechanical zog ntawm 431, UNS S43100, S80, X17CRNI16-2, thiab 1.4057 martensitic stainless hlau
| Tempering kub (degree) | Tensile zog (MPa) | Yield Strength 0.2% Pov thawj (MPa) | Elongation (% hauv 50mm) | Hardness Brinell (HB) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed * | 862 | 655 | 20 | max 285 hli | – |
| 204 | 1345 | 1055 | 20 | 388 | 50 |
| 316 | 1295 | 1035 | 19 | 375 | 53 |
| 427 | 1350 | 1080 | 19 | 388 | # |
| 538 | 1140 | 965 | 19 | 321 | # |
| 593 | 1015 | 770 | 20 | 293 | 64 |
| 650 | 960 | 695 | 20 | 277 | 84 |
Lub cev muaj zog ntawm 431, UNS S43100, S80, X17CRNI16-2, thiab 1.4057 martensitic stainless hlau
| Qib | kg/m³ | Elastic Modulus (GPa) | Lub ntsiab lus Coefficient ntawm Thermal Expansion (μm / m / degree) | Thermal conductivity (W / mK) | degree (J / kg.K) | Hluav taws xob tiv thaiv (nΩ) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100 degree | 0-315 degree | 0-538 ° C | ntawm 100 degree | ntawm 500 degree | |||||
| 431 | 7800 | 200 | 10.2 | 12.1 | - | 20.2 | - | 460 | 720 |
Corrosion tsis kam ntawm cov khoom
Raws li chromium -nickel steel, cov khoom siv AISI 431 (1.4057, BS 431S29, X17CrNi16-2) muaj kev tiv thaiv corrosion zoo. Txawm li cas los xij, cov khoom no raug cuam tshuam rau intergranular corrosion. Qhov siab tshaj plaws corrosion kuj yog tiav nrog lub ci xim hlau nto.
1.4057 khoom hardness
Lub hardness ntawm 1.4057 stainless hlau sib txawv nrog kev kho cua sov, xws li kwv yees li 295 HB (Brinell Hardness) nyob rau hauv lub xeev annealed mus rau 33-46 HRC (Rockwell Hardness) tom qab quenching thiab tempering. Qhov tshwj xeeb hardness nyob ntawm kev kho cua sov, xws li QT800 lossis QT900, thiab tuaj yeem cuam tshuam los ntawm kev ua haujlwm txias thaum ua haujlwm.
1.4057 Martensitic Stainless Hlau Machining
431, UNS S43100, S80, X17CrNi16-2, thiab 1.4057 martensitic stainless hlau yog yooj yim machinable nyob rau hauv lub xeev annealed. Txawm li cas los xij, yog tias qhov hardness ntawm cov hlau no tshaj 30 HRC, kev ua haujlwm yuav nyuaj heev.
Yog tias koj muaj ib qhov project yuav tsum tau rau 431 1.4057 stainless hlau tuav, thov koj xav tias dawb tso ib qho kev txiav txim. GNEE muaj cov khoom muag loj ntawm cov khoom nrov rau koj xaiv. Lawv tuaj yeem ua tiav rau hauv ntau yam khoom siv, nrog rau cov phaj, coils, kav, tuav, thiab xaim. Rau cov ncauj lus kom ntxaws tshuaj muaj pes tsawg leeg thiab kuaj dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.
