1. ** COMPOSITION NTAWM ASTM A213 T12 **
ASTM A213 T12 yog ib qho tsawg-alloy steel siv hauv cov leeg boiles thiab cua sov. Nws cov ntawv muaj pes tsawg leeg (los ntawm qhov hnyav) suav nrog:
- carbon (c): {{0. {0}} 5-0.15%
- MANGANUSE (MN): {0. 3 {0 - 0.61%
- Phosphorus (p): tsawg dua lossis sib npaug rau 0. 025%
- Sulfur (s): tsawg dua lossis sib npaug rau 0. 025%
- silicon (si): {0. 25-1. {{{%
- chromium (CR): 0. 80-1.25%
- Molybdenum (mo): {{0. 44 - 0. 65%
2. ** Qhov sib txawv ntawm ISO 3651-2} thiab Astm A262 **
- ** ISO {{3651-2}} **: Tsom rau kev kuaj mob intregranular siv cov sulfuric sulfate txoj kev (Strauss sim). Nws ntsuas kev tsis kam rau qhov tsis txaus siab hauv cov hlau thiab ferritenic-antenitic steels.
- ** ASTM A262 **: suav nrog ntau txoj kev xyaum (piv txwv li, xyaum A-e) rau kev ntes tau cuam tshuam rau kev tawm tsam hauv cov hlau tsis muaj zog. Cov txheej txheem sib txawv hauv kev sim xov xwm (piv txwv li, nitric acid, tooj liab sulfate-sulfuric acid) thiab yog, ustenitic vs. ferritic).
3. ** Muaj pes tsawg leeg ntawm 192 **
SA 192 (ASME txheem rau Seamless Cov Hlau Hlau Boiler Hles) muaj qhov sib xyaw hauv qab no:
- carbon (c): tsawg dua lossis sib npaug rau 0. {{}}}}}}}}}}}}}} 6-0.18%
- MANGANUSE (MN): {0. 27 - 0. 63%
- Phosphorus (p): tsawg dua lossis sib npaug rau 0. 035%
- Sulfur (s): tsawg dua lossis sib npaug rau 0. 035%
- silicon (si): ntau dua lossis sib npaug rau 0. 10% (yog tias tua cov hlau)
4. ** Qhov sib txawv ntawm Astm A153 thiab F2329 **
- ** ASTTM A153 **: Cov tseev kom muaj rau zinc txheej (kub-dip galvanizing) ntawm hlau thiab hlau, bolts, neeg rau). Nws tsom rau corrosion tiv thaiv rau cov txheej txheem txheej txheem.
- ** ASTM F2329 **: Npog ZINC Txheej Txheej Txheem los ntawm Neeg Kho Tshuab Plating \/ Peening rau Fasteners. Tus txheej txheem no zam cov hydrogen embrittlement thiab yog ruited rau high-zog steel qhov chaw.
5. ** Qhov sib txawv ntawm Astm C534 Hom 1 thiab Hom 2 **
ASTM C534 npog flumable cellular Elastomeric Elastomeric Thermal rwb thaiv tsev.
- ** Hom 1 **: Cov roj hmab kaw-CYLE ua npuas ncauj (piv txwv li, Epdré) rau siv nyob rau ntawm **} -40 degree rau 93 degree).
- ** HOM 2 **: Cov khoom siv zoo sib xws tab sis ntsuas rau kev hloov pauv ntau dua ntawm qis dua kub (** {{}}} degree rau 93 degree). Ntaus 2 feem ntau tau zoo dua-kub ua tau zoo.
