Ukuba ufuna ukwazi ulwazi oluthe kratya, olufana neekowuteshini, iimveliso, izisombululo, njl.njl., pqeshisanxibelelana nathi kwi-intanethi.
I-Tianjin Sanon Steel Pipe Co., Ltd. ngumthengisi wempahla. Ifektri yethu yempahla ikwiSixeko saseCangzhou, kwiPhondo laseHebei. Imithombo yethu ephambili yeempahla yileimibhobho yebhoyila, kwaye izixhobo ezimeleyoI-ASTM A335 P5/P11/P91/P92,I-ASME SA-106/SA-106MGR.B,GB/T 3087-200810#/20#. Izinto ezimele imibhobho yepayipi zeziI-API 5L,I-API 5CT, izinto ezimele imibhobho yokuqhekeka kwepetroliyamI-GB/T 9948ziyi-15MoG/12CrMoVG. I-GB/T 6479-2013 imele izinto ezi-10#/20#, iityhubhu zokutshintsha ubushushu i-SA179/SA210/SA192, njl.njl., iityhubhu zoomatshini i-GB/T 8162 zimele izinto ezi-10#/20#/Q345/42CrMo, i-EN10210 imele izinto ezi-S355JOH/S355J2H, iityhubhu zesilinda yegesi i-GB1 8248, zimele izinto ezi-34CrMo4/30CrMo.
1. Intshayelelo: Ibanga elifanayo, i-DNA eyahlukileyo
Kwiinkcukacha zentsimbi yesakhiwo,S355J2Hyimfuneko eqhelekileyoiindawo ezingenantoNangona kunjalo, ibonakala phantsi kwemigangatho emibini eyahlukeneyo yokuvelisa:EN 10210kwayeEN 10219Nangona igama elithi "S355J2H" lidla ngokukhohlisa abathengi ukuba bacinge ukuba bayafana, indlela yokuvelisa—kwaye ngenxa yoko ukusebenza—yahlukile kakhulu.
Eli nqaku lithelekisa i-EN 10210 S355J2H (Eshushu Egqityiweyo) ne-EN 10219 S355J2H (Eyenziwe Ngobandayo) ukuze kucaciswe umahluko phakathi koomatshini, iimpawu ezibonakalayo, kunye nokufaneleka kokusetyenziswa kwazo.
2. Umahluko Ophambili: Inkqubo Yokuvelisa
EN 10210 - Igqityiwe Ngokushushu (S355J2H)
Iinxalenye eziphantsi kwe-EN 10210 zenziwe kumaqondo obushushu aphezulu (ngesiqhelo ngaphezulu kobushushu bokuphinda kusetyenziswe). Le nkqubo "Yokugqityezelwa Okushushu" ikhulula uxinzelelo lwangaphakathi oludalwa ngexesha lokubumba. Ngaphakathi kwe-EN 10210, i-S355J2H idla ngokuveliswa ngendlela yokunciphisa uxinzelelo (ukufudumeza ngaphantsi kwe-850°C) okanye indlela eFully Normalized (ukufudumeza ngaphezulu kwe-~850°C ukuseta kwakhona isakhiwo sengqolowa). Iityhubhu ezilungelelanisiweyo ngokupheleleyo zibonelela ngokuguquguquka okuphezulu kunye nokufana.
EN 10219 - Ukwakheka Komkhuhlane (S355J2H)
Amacandelo aphantsi kwe-EN 10219 abunjwe kubushushu begumbi esebenzisa ikhoyili yentsimbi okanye ipleyiti. Intsimbi iyagotywa ize idityaniswe (ngesiqhelo yi-ERW okanye i-SAW). Olu hlobo lokusebenza olubandayo luqinisa intsimbi, ngakumbi kwiindawo ezigobileyo nakwiikona, luvaleleke kwiingcinezelo eziphezulu ezishiyekileyo.
3. Uthelekiso lweeNkcukacha zoBugcisa (S355J2H)
Nangona imida yokwakheka kweekhemikhali ifana, ukusebenza koomatshini kunye nokunyamezelana okuvumelekileyo kuyatshintsha ngenxa yendlela yokwenza.
| Ipropati | EN 10210-1(Ishushu Igqityiwe) | EN 10219-1(Eyenziwe Ngobandayo) |
| Ubushushu Bokwenza | Ngaphezulu kokuphinda kusetyenziswe icrystallization (Kushushu) | Imozulu / Ubushushu begumbi (Ukubanda) |
| Amandla okuVuna (ReH) (T ≤ 16mm) | ≥ 355 MPa | ≥ 355 MPa |
| Amandla okuThamba (Rm) (3mm ≤ T ≤ 40mm) | 470 – 630 MPa | 470 – 630 MPa *(Qaphela: Uluhlu lweenkcukacha ze-EN10219 490-630 kwi-T<3mm)* |
| Ukwandiswa | Ubuncinci be-22% (Ukuqina okuphezulu ngenxa yonyango lobushushu) | Ubuncinci be-20% (Iphantsi ngenxa yokuqina komsebenzi) |
| Ukuqina Kwempembelelo (KV) | 27J @ -20°C | 27J @ -20°C |
| Uxinzelelo olushiyekileyo | Iphantsi (Ithomalaliswa bubushushu) | Phezulu (Itshixiwe xa ikwimo) |
| Irediyasi yeKona (SHS/RHS) | < 2T (Iqinile, ibukhali ngakumbi) | 1.6T ~ 3.6T (Irediyasi enkulu) |
4. Umahluko Obonakalayo Nowemilinganiselo
Isiphumo "sokuNciphisa" (Uxinzelelo olusele): Iindawo ezakhiwe ngokubanda (EN 10219) zinomkhwa wendalo "wokubuyela umva" okanye "wokunciphisa" xa zinqunyulwe ngenxa yamandla aseleyo agciniweyo. Iindawo ezigqityiweyo ngobushushu (EN 10210) zihlala zizinzile ngokwemilinganiselo emva kokunqunyulwa.
Iikona: KwiCandelo Elinemiqolo Elisikwere Neliyingxande (SHS/RHS), i-EN 10219 ivumela irediyasi yekona ukuya kuthi ga kubude obuphindwe ka-3.6 kunobukhulu bodonga (T), nto leyo ebangela iikona ezijikelezileyo kakhulu. Iicandelo ze-EN 10210 ezigqityiweyo ngokushushu (ingakumbi eziqhelekileyo) zifumana irediyasi ebukhali kakhulu (idla ngokuba yi-<2T), inika umphezulu othe tyaba osebenzayo.
Ubukhulu Bodonga: I-EN 10210 ngokubanzi inika ukunyamezelana kobukhulu obuqinileyo xa kuthelekiswa ne-EN 10219.
5. Yeyiphi Ofanele Uyikhethe?
KhethaEN 10210-1 S355J2Hukuba:
Izicelo ezibalulekileyo zesakhiwo: Iibhulorho, ii-crane booms, iindawo ze-seismic, okanye amaqonga angaselunxwemeni.
Ukumelana nokudinwa okuphezulu: Ukuwelda okanye ukulayisha ngamandla kufuna ukuba izinto zibe noxinzelelo oluncinci olushiyekileyo ukuze kuthintelwe ukuqaliswa kokuqhekeka.
Iimfuno zobuhle/zokuchaneka: Udinga iikona eziqinileyo kunye nokuthe tye okuqikelelweyo kwimisebenzi yentsimbi evezwe ngobugcisa.
Ukwakheka kobushushu: Ukuba uceba ukwenza ukugoba okukhulu okanye ukwakheka kobushushu, izinto ezisemgangathweni ziziphatha ngendlela eqikelelweyo.
Khetha i-EN 10219-1 S355J2H ukuba:
Ukusebenza kakuhle kweendleko: Ukwakheka kobushushu kudla ngokuba kungabizi kakhulu kwaye kukhaphukhaphu ngokwemilinganiselo eqhelekileyo.
Ukwenziwa ngokubanzi: Izakhiwo ezisezantsi, imigangatho ye-mezzanine, izithuba zocingo, okanye izixhobo zezolimo apho uxinzelelo oluncinci olushiyekileyo lungengomngcipheko wokusilela.
Ukufumaneka: Yeyona tube "eqhelekileyo" ixhaphakileyo efumaneka kubathengisi bempahla kwihlabathi liphela.
6. Isilumkiso Esibalulekileyo kwi "S355J2H"
Lumka: Ayizizo zonke iityhubhu ze-EN 10210 S355J2H ezilinganayo.
Abavelisi banokwenza iityhubhu ze-EN 10210 ngokusebenzisa "uXinzelelo loxinzelelo" okanye "uXinzelelo oluQhelekileyo".
I-Standard S355J2H (Ithomalalisa Uxinzelelo): Iyahlangabezana nomgangatho kodwa igcina uxinzelelo oluthile. Ixabiso layo liphantsi.
I-S355NH (Eqhelekileyo): Uhlobo oluthile oluphantsi kwe-EN 10210 olufuna ukulungiswa ngokupheleleyo (ubushushu obuphezulu). Le yimveliso ekumgangatho ophezulu yokuwelda.
Ukuba ufuna i-ductility ephezulu kwaye akukho xinzelelo lushiyekileyo kwi-welding, phucula i-spec yakho ibe yi-EN 10210 S355NH endaweni ye-J2H eqhelekileyo.
Ixesha leposi: Meyi-15-2026
