JIS G3452 khoom yog dab tsi?
JIS G3452 yog Japanese Industrial Standard qhia txog cov kev cai rau carbon steel kav siv nyob rau hauv pipelines. Cov qauv no qhia meej meej cov ntsiab lus tshwj xeeb rau cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, qhov ntev ntev, thiab kev tshuaj xyuas cov kav dej steel. Raws li JIS G3452, cov khoom siv tshuaj tseem ceeb ntawm cov kav hlau muaj xws li carbon (C), silicon (Si), manganese (Mn), phosphorus (P), thiab sulfur (S), uas cov ntsiab lus carbon muaj qhov cuam tshuam tseem ceeb rau kev ua haujlwm ntawm cov kav hlau. Hais txog cov khoom siv kho tshuab, JIS G3452 yuav tsum muaj cov kav hlau steel kom muaj qee qhov tensile lub zog, yield zog, thiab elongation los xyuas kom meej lawv kev ntseeg tau thiab kev nyab xeeb nyob rau hauv ntau yam kev thov scenarios.
Lub zog tawm ntawm JIS G3452 yog dab tsi?
| Tensile zog thiab elongation | ||||||||
|---|---|---|---|---|---|---|---|---|
| Kev tsim lub cim | Tensile zog N / mm2 | Elongation% | ||||||
| Tensile Test Daim | Tensile Test Direction | Phab ntsa Thickness | ||||||
| Tshaj 3mm mus txog thiab incl.4mm | Tshaj 4mm mus txog thiab incl.5mm | Tshaj 5mm mus txog thiab incl.6mm | Tshaj 6mm mus txog thiab incl.7mm | Tshaj 7mm mus txog thiab incl.8mm | ||||
| SGP | 290 nqi. | No.11 Test Daim | Parallel rau cov yeeb nkab axis | 30 feeb. | 30 feeb. | 30 feeb. | 30 feeb. | 30 feeb. |
| No.12 Test Daim | Parallel rau cov yeeb nkab axis | 24 feeb. | 26 feeb. | 27 feeb. | 28 feeb. | 30 feeb. | ||
| No.5 Test Daim | Perpendicular rau cov yeeb nkab axis | 19 feeb. | 20 feeb. | 22 feeb. | 24 feeb. | 25 feeb. | ||
| CEEB TOOM: 1 N / mm 2 =1 MPa | ||||||||
Kev xav tau tshuaj lom neeg ntawm JIS G3452
| Chemical Composition Unit:% | ||
|---|---|---|
| Lub npe ntawm Qib | P | S |
| SGP | 0.040 max. | 0.040 max. |
Dab tsi yog jis g3452 khoom sib npaug
American Standards: Feem ntau siv American standard cov ntaub ntawv uas zoo ib yam li SGP muaj xws li A53 Qib B thiab A106 Qib B. Ob leeg yog carbon steels lug siv nyob rau hauv piping engineering, thiab lawv mechanical kev ua tau zoo raws li SGP.
Cov Qauv German: Hauv German cov qauv (DIN), cov ntaub ntawv carbon steel rau cov ntawv zoo sib xws suav nrog St37-2G, St44-2, thiab St52-3. Cov ntaub ntawv no kuj tseem siv tau rau kev siv cov qauv thiab cov kav dej.
Suav Cov Qauv: Hauv cov qauv suav nrog, cov khoom siv sib xws yuav suav nrog cov qauv carbon zoo tib yam xws li Q235A thiab Q235B, uas kuj yog cov yeeb nkab steel.
JIS G3452Carbon Steel Yeeb Nkab Hoobkas
