1. Standard Yam tsawg kawg nkaus Yield Strength (Primary Specification)
Official JIS G 3125 Requirement: Covyam tsawg kawg nkaus yield zogntawm SPA-H weathering steel yog345 MPa (50 ksi)rau tag nrho cov khoom cov ntaub ntawv (phaj, nplooj ntawv, coils, tuav) thiab thicknesses nyob rau hauv nws cov qauv ntau yam (feem ntau 1.6 hli mus rau 100 hli rau daim hlau / ntawv).
Tsis Thickness -Txoj kev txo qis: Tsis zoo li qee cov qauv hlau, SPA-H tsis muaj qhov txo qis zog rau cov ntu tuab (xws li, Ntau dua lossis sib npaug li 25 mm lossis ntau dua lossis sib npaug li 50 mm). Qhov tsawg kawg nkaus 345 MPa yog zoo ib yam nyob rau hauv tag nrho cov thicknesses, kom ntseeg tau tias cov qauv kev ua tau zoo nyob rau hauv loj los yog tuab Cheebtsam (xws li, choj railings, hnyav - lub luag hauj lwm kos npe thav duab).
Unit Conversion Note: 345 MPa yog lub ntsuas ntsuas (megapascals), thiab 50 ksi yog qhov sib npaug ntawm imperial (kilopounds ib square inch), ob qho tib si dav siv hauv ntiaj teb engineering thiab tsim cov ntaub ntawv rau ntoo khaub lig- thaj tsam project compatibility.
2. Yam Ua Tau Zoo Tshaj Plaws Zog (Ntau tshaj qhov tshwj xeeb)
Mill Production Range: Hauv kev tsim khoom, feem ntau SPA-H hlau ua los ntawm mills muaj ib qhoLub zog tawm los ntawm 360 MPa txog 420 MPa, uas tshaj qhov JIS yam tsawg kawg nkaus yuav tsum tau los ntawm 15-75 MPa.
Kev sib haum xeeb hauv kev tsim khoom: Reputable steel mills tuav nruj tswj ntawm dov thiab txias txheej txheem kom ntseeg tau tias lub zog tawm los tiag tiag tsis poob qis dua 345 MPa qhov pib, thiab qhov me ntsis overage muab kev nyab xeeb rau cov qauv tsim thiab fabrication (xws li, khoov, vuam, thiab load-cov kabmob).
Batch Variation: Cov kev hloov me me (± 10 MPa) nyob rau hauv qhov tseeb yield zog yuav tshwm sim ntawm ntau lawm batches, tab sis cov no yog negligible thiab tsis cuam tshuam rau kev ua raws li JIS G 3125 los yog structural kev ua tau zoo.
3. Kev sib raug zoo rau Lwm Cov Khoom Siv Hluav Taws Xob
Tensile Strength Compatibility: SPA-H lub zog tawm los yog ua ke nrog aTsawg tensile lub zog ntawm 480 MPa (70 ksi)(JIS G 3125), nrog rau qhov tseeb tensile lub zog ntawm 490-620 MPa. Cov tawm los-rau- tensile lub zog piv (kwv yees li 0.7-0.8) yog qhov zoo tshaj plaws rau huab cua steel, ntsuas ductility thiab load-cov kabmob muaj peev xwm.
Ductility Preservation: Txawm hais tias nws lub zog muaj zog, SPA-H khaws cia zoo ductility (Tsawg kawg elongation ntawm so ntawm 20%rau thicknesses tsawg dua los yog sib npaug li 16 hli) thiab formability, cia nws yuav tsum tau khoov, nkhaus, thiab fabricated rau hauv complex duab (xws li, architectural facades, sculptures) tsis muaj cracking - ib qho tseem ceeb feature rau tsis yog - cov ntaub ntawv kho kom zoo nkauj.
Hardness Correlation: Lub zog tawm los ntawm SPA-H cuam tshuam nrog aBrinell hardness (HBW) ntau ntawm 180-220, uas yog nruab nrab rau siab -lub zog steels. Qib hardness no ua kom muaj kev tiv thaiv me me thiab deformation (piv txwv li, rau cov rooj tog hauv kev lossis cov khoom siv sab nraum zoov) thaum seem machinable thiab weldable.
4. Cov kev cuam tshuam rau kev siv
Kev Tsim Nyog Tsim Nyog: Qhov tsawg kawg nkaus 345 MPa lub zog tsim nyog SPA-H rau siv hauvnruab nrab - mus rau - hnyav structural applications(piv txwv li, cov neeg taug kev choj Cheebtsam, cov nroj tsuag kev txhawb nqa thav duab, khaws cov ncej phab ntsa) qhov twg corrosion kuj thiab load-cov kabmob muaj peev xwm yog ob qho tib si.
Architectural & Kho kom zoo nkauj siv: Rau cov khoom siv tsis yog -cov qauv kev tsim vaj tsev (xws li, facades, signage, sculptures), lub zog tawm los ua kom muaj zog thiab ua haujlwm tsis zoo rau warping los yog deformation nyob rau hauv ib puag ncig kev ntxhov siab (xws li cua, kub hloov pauv), txawm nyob rau hauv nyias gauges (1.6-6 mm).
Sib piv nrog Lwm Cov Huab Cua Huab Cua: SPA-H's yield zog sib tw nrog lwm tus hwm zoo siab- lub zog huab cua qib steel qib thoob ntiaj teb, suav nrog ASTM A588 (US tus qauv, 345 MPa yam tsawg kawg nkaus) thiab GB / T 4171 Q355NH (Suav tus qauv, 355 MPa yam tsawg kawg nkaus), ua rau muaj kev hloov pauv thoob ntiaj teb.
