1. Taw qhia ntawm Q315NS acid-resistant steel:
Qauv: Q315NS
Khoom npe: Sulfuric acid resistant steel rau qhov kub thiab txias dew point corrosion
Tus qauv txheem: GB / T28907-2012
Qhov loj, zoo, qhov hnyav thiab qhov sib txawv ntawm Q315NS yuav tsum ua raws li GB / T709.

2. Lub ntsiab lus ntawm Q315NS acid-resistant steel:
Q315NS txoj kev qhia: Q - thawj tsab ntawv ntawm Suav pinyin ntawm "qu" nyob rau hauv lub zog tawm los;315 - qhov qis tshaj tawm ntawm cov hlau, hauv MPa;NS - thawj tsab ntawv ntawm Suav pinyin ntawm "resistant" thiab "acid" feem.Q315NS acid-resistant steel yog hais txog kev ntxiv ib qho nyiaj ntawm cov hlau alloying rau cov hlau kom muaj zog tiv thaiv sulfuric acid uas tsim los ntawm kev sib xyaw ntawm sulfur trioxide thiab dej hauv qab dej lwg taw tes thaum cov hlau raug cov roj sulfuric (xws li a steel chimney muaj cov pa tso pa tawm).Corrosion kev ua haujlwm.

3. Tshuaj muaj pes tsawg leeg ntawm Q315NS acid-resistant steel:
Khoom siv CSiMnPSCrCuSbQ345NS≤0.15≤0.55≤1.20≤0.035≤0.0350.30-1.200.20-0.50≤0.15

4. Mechanical zog ntawm Q315NS acid-resistant steel: khoom yield zog Ra MPa tensile zog Ra MPa elongation tom qab tawg A% Q315NS≥315≥440≥22Q345NS≥345≥470≥20

5. Corrosion kuj ntawm Q315NS acid-resistant steel:
Raws li txoj kev xeem tau teev tseg hauv JB / T7901, tus nqi corrosion tsis ntau tshaj 10mm / a (0.89mg / cm² * h, 30% txheeb ze rau tus nqi corrosion ntawm Q235B nyob rau hauv qhov kub ntawm 20 ℃, sulfuric acid concentration ntawm 20%, thiab tag nrho immersion rau 24 teev);Nyob rau hauv qhov kub ntawm 70 ℃ thiab tag nrho immersion rau 24h, qhov nruab nrab corrosion tsis ntau tshaj 250mm / a (22.4mg / cm² * h, 50% piv rau Q235B corrosion rate).