Qhov sib txawv ntawm kev lag luam tus nqi ntawm nyias-walled seamless steel kav thiab tuab-walled seamless steel kav feem ntau yog nyob ntawm cov txheej txheem ntau lawm, cov khoom siv, nqi thiab kev thov. Cov hauv qab no yog lawv qhov sib txawv ntawm tus nqi thiab kev thauj mus los:

1. Kev ua lag luam tus nqi sib txawv
Thin-walled seamless steel yeeb nkab:

Tus nqi qis: Vim yog cov phab ntsa nyias nyias, cov khoom siv tsawg dua yog siv, thiab cov nqi tsim khoom kuj tsawg.

Kev siv dav dav: Feem ntau yog siv nyob rau hauv lub sijhawm uas tsis tshua muaj kev xav tau rau lub zog thiab kev ua haujlwm siab, xws li kev tsim kho, kho kom zoo nkauj, kev thauj mus los, thiab lwm yam, nrog rau kev lag luam loj.

Cov nqi me me hloov pauv: Feem ntau, tus nqi ruaj khov thiab cuam tshuam zoo heev los ntawm kev lag luam steel.

Thick-walled seamless steel yeeb nkab:

Cov nqi siab dua: cov phab ntsa tuab yog loj, ntau cov ntaub ntawv raw siv, thiab cov txheej txheem ntau lawm yog complex, ua rau cov nqi ntau dua.

Cov kev xav tau kev ua haujlwm siab: Feem ntau siv rau hauv thaj chaw uas muaj kev kub ntxhov thiab kev ua haujlwm siab, xws li cov cuab yeej siv tshuab, petrochemicals, boilers, thiab lwm yam, nrog rau cov kev xav tau siab rau compressive zog thiab corrosion kuj.

Tus nqi siab thiab kev hloov pauv loj: Vim qhov kev thov nruj rau cov kav hlau tuab tuab hauv cov teb tshwj xeeb, tus nqi hloov pauv tau zoo heev, tshwj xeeb tshaj yog thaum tus nqi ntawm cov khoom siv steel nce.
2. Kev ceev faj txog kev thauj mus los
Thin-walled seamless steel yeeb nkab:

Yooj yim rau deform: Vim yog cov phab ntsa nyias ntawm cov yeeb nkab, nws yooj yim rau deformed los ntawm sab nraud quab yuam thaum thauj, tshwj xeeb tshaj yog thaum bundling thiab stacking.
Tiv thaiv kom tsis txhob khawb: Qhov saum npoo ntawm cov kav dej nyias nyias yog yooj yim puas, thiab kev tiv thaiv tsim nyog yuav tsum tau ua, xws li npog cov ntaub yas los yog lwm yam khoom siv tiv thaiv.
Stable bundling: Nws yog ib qho tsim nyog yuav tsum tau siv cov hlua khau los yog cov hlua khi tshwj xeeb rau pob kom tsis txhob deformation ntawm cov yeeb nkab lub cev vim yog nruj heev.
Thick-walled seamless steel yeeb nkab:

Hnyav hnyav: tuab-walled steel kav yog hnyav, thiab cov khoom nqa loj yuav tsum tau thaum lub sij hawm thauj mus los, thiab cov cuab yeej thauj mus los yuav tsum muaj peev xwm nqa tau txaus.
Stable stacking: Vim qhov hnyav hnyav ntawm cov kav dej steel, qhov sib npaug thiab kev ruaj ntseg yuav tsum tau txiav txim siab thaum lub sij hawm stacking kom tsis txhob dov los yog tipping, tshwj xeeb tshaj yog thaum lub sij hawm thauj mus los los tiv thaiv kev sib tsoo lossis kev sib tsoo.
Kev nyab xeeb kev thauj mus los: Thaum lub sij hawm kev thauj mus los ntev, kev saib xyuas tshwj xeeb yuav tsum tau them rau cov cuab yeej xws li cov ntaub thaiv npog thiab kev txhawb nqa ntawm cov kav dej steel kom tsis txhob muaj kev puas tsuaj los ntawm kev sib txhuam thiab kev cuam tshuam.
Tus nqi ntawm nyias-walled seamless steel kav yog qhov tsawg, tab sis yuav tsum tau them nyiaj rau kev tiv thaiv deformation thiab nto puas thaum lub sij hawm thauj mus los; thaum lub sij hawm tus nqi ntawm tuab-walled seamless steel kav yog siab dua, thiab tshwj xeeb yuav tsum tau them rau kev nyab xeeb, ruaj khov thiab hnyav tswj thaum lub sij hawm thauj. Txawm li cas los xij, seamless steel kav nrog cov ntaub ntawv tshwj xeeb thiab cov lus qhia tshwj xeeb tseem yuav tsum tau ntsuas qhov tseeb.
Sanonpipe lub ntsiab seamless steel kav suav nrog boiler kav, chiv kav, roj kav, thiab cov kav dej.

1.Boiler Pipes40%
ASTM A335 Cov Lus Qhia Tshwj Xeeb/A335M-2018: P5, P9, P11, P12, P22, P91, P92;GB / T5310-2017: 20g, 20mng, 25mng, 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg;ASME SA-106/ SA-106M-2015: GR.B, CR.C; ASTMA210 (A210M)-2012: SA210GrA1, SA210 GrC; ASME SA-213/SA-213M: T11, T12, T22, T23, T91, P92, T5, T9, T21; GB/T 3087-2008: 10#, 20#;
2.kab cev30%
API 5L: PSL 1, PSL 2;
3.Petrochemical yeeb nkab10%
GB9948-2006: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 20G, 20MnG, 25MnG; GB6479-2013: 10, 20, 12CrMo, 15CrMo, 12Cr1MoV, 12Cr2Mo, 12Cr5Mo, 10MoWVNb, 12SiMoVN b;GB17396-2009:20, 45, 45Mn2;
4.kub exchanger tube10%
ASME SA179/192/210/213: SA179/SA192/SA210A1.
SA210C/T11 T12, T22.T23, T91. T92
5.Mechanical yeeb nkab10%
GB/T8162: 10, 20, 35, 45, Q345, 42CrMo; ASTM-A519: 1018, 1026, 8620, 4130, 4140; EN10210: S235GRHS275JOHS275J2H; ASTM-A53: GRA GRB