Hlau yeeb nkab taw qhia: steel nrog hollow seem thiab nws qhov ntev yog ntau dua li txoj kab uas hla lossis ncig. Raws li cov duab seem, nws tau muab faib ua voj voog, square, duab plaub thiab tshwj xeeb-puab steel kav; Raws li cov khoom siv, nws tau muab faib ua carbon structural steel yeeb nkab, qis alloy steel yeeb nkab, alloy steel yeeb nkab thiab cov yeeb nkab steel yeeb nkab; Raws li lub hom phiaj, nws tau muab faib ua cov kav hlau xa mus rau cov kav xa dej, cov qauv tsim hluav taws xob, cov khoom siv thermal, kev lag luam petrochemical, kev tsim cov tshuab, geological drilling, cov cuab yeej siv siab, thiab lwm yam; Raws li cov txheej txheem ntau lawm, nws tau muab faib ua seamless steel yeeb nkab thiab welded steel yeeb nkab. Seamless steel yeeb nkab yog muab faib ua kub dov thiab txias dov (kos duab), thiab welded steel yeeb nkab yog muab faib ua ncaj seam welded steel yeeb nkab thiab kauv seam welded steel yeeb nkab.

Cov yeeb nkab steel tsis yog tsuas yog siv rau kev xa cov kua dej thiab cov hmoov av, sib pauv cov hluav taws xob hluav taws xob, tsim cov khoom siv kho tshuab thiab cov thawv ntim khoom, tab sis kuj yog kev lag luam hlau. Siv cov yeeb nkab steel los ua cov kab sib txuas hauv tsev, ncej thiab cov cuab yeej txhawb nqa tuaj yeem txo qhov hnyav, txuag hlau los ntawm 20 ~ 40%, thiab paub txog kev tsim kho thiab kev tsim kho tshuab. Kev tsim cov kav hlau loj nrog cov kav hlau tsis tuaj yeem tsuas yog txuag cov hlau thiab ua kom yooj yim rau kev tsim kho, tab sis kuj txo qis thaj tsam ntawm kev tiv thaiv txheej thiab txuag peev thiab kho cov nqi. Los ntawm txoj kev tsim khoom

Cov kav hlau tuaj yeem muab faib ua ob pawg raws li kev tsim khoom: seamless steel kav thiab welded steel kav. Welded steel kav yog hu ua welded kav rau luv luv.

1. Raws li txoj kev tsim, seamless steel yeeb nkab yuav muab faib ua: kub dov seamless yeeb nkab, txias drawn yeeb nkab, precision steel yeeb nkab, kub expanded yeeb nkab, txias spinning yeeb nkab thiab extruded yeeb nkab.

Bundles ntawm steel kav

Bundles ntawm steel kav

Seamless steel yeeb nkab yog ua los ntawm high-quality carbon steel los yog alloy steel, uas yuav muab faib ua kub dov thiab txias dov (kos duab).

2. Welded steel yeeb nkab yog muab faib ua rau lub cub tawg welded yeeb nkab, hluav taws xob vuam (tsis kam vuam) yeeb nkab thiab tsis siv neeg arc welded yeeb nkab vim muaj txheej txheem vuam sib txawv. Vim muaj cov ntaub ntawv sib txawv, nws tau muab faib ua ncaj seam welded yeeb nkab thiab kauv welded yeeb nkab. Vim nws qhov kawg zoo, nws tau muab faib ua voj voog welded yeeb nkab thiab tshwj xeeb-puab (square, ca, thiab lwm yam) welded yeeb nkab.

Welded steel yeeb nkab yog ua los ntawm dov steel phaj welded los ntawm pob tw seam los yog kauv seam. Nyob rau hauv cov nqe lus ntawm kev tsim txoj kev, nws kuj tau muab faib ua welded steel yeeb nkab rau cov dej tsis tshua muaj siab kis tau tus mob, muab kauv seam welded steel yeeb nkab, ncaj dov welded steel yeeb nkab, welded steel yeeb nkab, thiab lwm yam. Seamless steel yeeb nkab yuav siv tau rau cov kua thiab roj pipelines. nyob rau hauv ntau yam kev lag luam. Cov kav dej welded tuaj yeem siv rau cov kav dej, cov kav dej roj, cov kav dej cua sov, cov kav dej hluav taws xob, thiab lwm yam.

Kev faib khoom

Cov yeeb nkab steel tuaj yeem muab faib ua cov yeeb nkab carbon, cov yeeb nkab hlau thiab cov yeeb nkab steel hlau raws li cov khoom siv yeeb nkab (piv txwv li qib steel).

Cov pa roj carbon yeeb nkab tuaj yeem muab faib ua cov pa roj carbon zoo tib yam thiab cov yeeb nkab zoo carbon zoo.

Alloy yeeb nkab tuaj yeem muab faib ua: cov yeeb nkab uas tsis tshua muaj hlau, cov yeeb nkab steel hlau, cov yeeb nkab siab thiab cov yeeb nkab muaj zog. Cov kabmob yeeb nkab, cua sov thiab acid resistant stainless yeeb nkab, precision alloy (xws li kovar alloy) yeeb nkab thiab superalloy yeeb nkab, thiab lwm yam.

Kev sib txuas hom kev faib tawm

Raws li kev sib txuas ntawm cov yeeb nkab kawg, cov yeeb nkab steel tuaj yeem muab faib ua: cov yeeb nkab du (cov yeeb nkab kawg tsis muaj xov) thiab cov yeeb nkab threading ( yeeb nkab kawg nrog cov xov).

Cov yeeb nkab threading tau muab faib ua cov yeeb nkab zoo tib yam threading thiab thickened threading yeeb nkab ntawm cov yeeb nkab kawg.

Thickened threading kav kuj tuaj yeem muab faib ua: externally thickened (nrog rau lwm cov xov), internally thickened (nrog rau hauv xov) thiab internally thiab externally thickened (nrog rau sab hauv thiab sab nraud xov).

Raws li hom xov, cov yeeb nkab threading kuj tuaj yeem muab faib ua cov cylindrical lossis conical xov thiab xov tshwj xeeb.

Tsis tas li ntawd, raws li kev xav tau ntawm cov neeg siv, cov yeeb nkab threading feem ntau xa nrog cov yeeb nkab txuas.

Kev faib tawm ntawm cov yam ntxwv ntawm plating

Raws li cov yam ntxwv ntawm qhov chaw plating, cov kav dej steel tuaj yeem muab faib ua cov kav dej dub (tsis muaj plating) thiab cov kav dej coated.

Coated kav muaj xws li galvanized kav, aluminium plated kav, chromium plated kav, aluminized kav thiab steel kav nrog rau lwm cov hlau txheej.

Cov kav dej coated muaj xws li cov kav dej coated sab nrauv, cov kav dej coated thiab cov kav dej sab hauv thiab sab nraud. Cov txheej txheem siv feem ntau suav nrog yas, epoxy resin, thee tar epoxy resin thiab ntau yam iav hom los tiv thaiv corrosion txheej.

Galvanized yeeb nkab tau muab faib ua KBG yeeb nkab, JDG yeeb nkab, threaded yeeb nkab, thiab lwm yam.

Classification hom phiaj kev faib tawm

1. Cov yeeb nkab rau cov kav dej. Xws li cov kav dej seamless rau cov dej, roj thiab cov kav dej, cov kav dej xa hluav taws xob thiab cov kav dej rau cov roj thiab cov kav dej. Faucet nrog yeeb nkab rau kev ua liaj ua teb irrigation thiab yeeb nkab rau sprinkler irrigation, thiab lwm yam.

2. Cov kav dej rau cov khoom siv thermal. Xws li cov kav dej kub npau npau thiab cov kav dej superheated rau cov boilers dav dav, cov kav dej superheated, cov kav dej pa taws loj, cov kav dej me me, cov kav dej cib thiab cov kav dej kub thiab kub siab rau cov kav dej boilers.

3. Cov yeeb nkab rau kev lag luam tshuab. Xws li aviation structural yeeb nkab (puab yeeb nkab, oval yeeb nkab, ca oval yeeb nkab), tsheb ib nrab qag yeeb nkab, qag yeeb nkab, tsheb laij teb structural yeeb nkab, tsheb laij teb roj txias yeeb nkab, kev ua liaj ua teb machinery square yeeb nkab thiab square yeeb nkab, transformer yeeb nkab thiab bearing yeeb nkab, thiab lwm yam .

4. Cov kav dej rau roj av geological drilling. Xws li: roj drilling yeeb nkab, roj laum yeeb nkab (Kelly thiab hexagonal laum yeeb nkab), drilling tappet, roj tubing, roj casing thiab ntau yam yeeb nkab sib txuas, geological drilling yeeb nkab (tub ntxhais yeeb nkab, casing, active laum yeeb nkab, drilling tappet, hoop thiab pin sib koom, thiab lwm yam).

5. Cov kav dej rau kev lag luam tshuaj. Xws li: roj av cracking yeeb nkab, yeeb nkab rau tshav kub exchanger thiab pipeline ntawm cov khoom siv tshuaj, stainless acid resistant yeeb nkab, high-pressure yeeb nkab rau tshuaj chiv thiab yeeb nkab rau conveying tshuaj nruab nrab, thiab lwm yam.

6. Cov kav dej rau lwm lub tuam tsev. Piv txwv li: cov raj rau cov thawv ntim (cov raj rau lub tog raj kheej siab thiab cov thawv ntim dav dav), cov raj rau cov twj paj nruag, cov raj rau cov neeg saib xyuas, koob txhaj tshuaj thiab cov raj rau cov khoom siv kho mob, thiab lwm yam.

Tshooj puab kev faib tawm

Cov khoom siv steel yeeb nkab muaj ntau yam steel hom thiab specifications, thiab lawv cov kev ua tau zoo kuj muaj ntau yam. Tag nrho cov no yuav tsum raug cais raws li kev hloov pauv ntawm cov neeg siv khoom xav tau lossis kev ua haujlwm. Feem ntau, cov khoom siv yeeb nkab steel raug cais raws li cov qauv, cov qauv tsim, cov khoom siv yeeb nkab, hom kev sib txuas, cov yam ntxwv plating thiab daim ntawv thov.

Cov kav hlau hlau tuaj yeem muab faib ua cov kav hlau puag ncig thiab cov kav hlau tshwj xeeb raws li cov duab ntoo khaub lig.

Tshwj xeeb zoo li tus steel yeeb nkab yog hais txog txhua yam ntawm cov yeeb nkab steel uas tsis yog-cib annular seem.

Lawv feem ntau muaj xws li: square tube, rectangular tube, elliptical raj, ca elliptical raj, semicircular raj, hexagonal raj, hexagonal puab raj, tsis sib npaug hexagonal raj, equilateral daim duab peb sab raj, pentagonal quincunx raj, octagonal raj, ob chav convex tube, concave tube, multi concave raj, melon noob tube, ca raj, rhombic raj, lub hnub qub raj, parallelogram raj, ribbed raj, nco raj, puab fin raj, twist raj, B-TUBE D-tube thiab multilayer raj, thiab lwm yam.