Qib kev qhia: qib steel muaj peb ntu: cov tsiaj ntawv suav suav suav sawv cev rau lub zog tawm los, cov txiaj ntsig muaj zog, thiab cov cim qib zoo. Piv txwv li: Q345B, qhov twg:
Q- Thawj tsab ntawv ntawm Suav Pinyin ntawm "qu" rau lub zog ntawm cov hlau;
345-Yield zog tus nqi, unit MPa;
B-Qib zoo yog qib B.
Thaum tus neeg yuav khoom xav tau cov phaj hlau kom muaj qhov kev ua tau zoo ntawm cov thickness, cov cim sawv cev ntawm cov kev taw qhia tuab (Z kev taw qhia) qib kev ua tau zoo ntxiv tom qab cov saum toj no - cov qib tau hais, piv txwv li: Q345BZ15.
Tus txheej txheem tswj hwm: siv GB / T1591-2008.
Q345B steel phaj yog cov khoom siv hlau. Nws yog qis- alloy steel (c<0.2%) with good overall performance, good low temperature performance, cold stamping performance, welding performance and machinability. It is widely used in bridges, vehicles, ships, buildings, pressure vessels, etc. q represents the yield of this material, and 345 in the back refers to the yield value of this material, around 345mpa. And as the thickness of the material increases, its yield value decreases.
Kev Xav Tau & Kev Pab Ntxiv rau Q345B steel phaj:
Tsawg kub cuam tshuam kuaj
Txiav thiab vuam raws li ib tus neeg siv kawg xav tau
Cov kev txwv ntau dua ntawm qee cov tshuaj lom neeg muaj
Tshaj tawm Orginal Mill xeem daim ntawv pov thawj raws li EN 10204 FORMAT 3.1/3.2
Ultrasonic xeem nyob rau hauv GB / T2970, JB4730, EN 10160, ASTM A435, A577, A578
Chemical Compositions:
C: Tsawg dua lossis sib npaug li 0.20%,
Si tsawg dua lossis sib npaug li 0.50%,
Mn: Tsawg dua lossis sib npaug li 1.70%,
P Tsawg dua lossis sib npaug li 0.035%,
S: Tsawg dua lossis sib npaug li 0.035%,
Nb Tsawg dua lossis sib npaug li 0.07%,
V: Tsawg dua lossis sib npaug li 0.15%,
Ti tsawg dua lossis sib npaug li 0.20%,
Cr Tsawg dua lossis sib npaug li 0.30%,
Ni: Tsawg dua lossis sib npaug li 0.50%,
Cu: Tsawg dua lossis sib npaug li 0.30%,
N: Tsawg dua lossis sib npaug rau 0.012%,
Mo: Tsawg dua lossis sib npaug rau 0.10%
Mechanical zog
Yield zog:
Tsawg dua lossis sib npaug li 16 hli: Ntau dua lossis sib npaug rau 345,
16-40mm: Ntau dua lossis sib npaug rau 335,
40-63mm: Ntau dua lossis sib npaug rau 325,
63-80mm: Ntau dua lossis sib npaug rau 315,
80-100mm: Ntau dua lossis sib npaug rau 305,
100-150mm: Ntau dua lossis sib npaug rau 285,
150-200mm: Ntau dua lossis sib npaug rau 275.
Tensile zog: 450-630.
Elongation: ntau dua 17.
Impact test: ntsuas kub: 20 degree: siab dua 34.
