Q235B Dub Welded Round Steel Pipe

Q235B Dub Welded Round Steel Pipe piav qhia

Q235B yog ib hom carbon structural steel. Nyob rau hauv nws lub npe, "Q" sawv cev rau lub zog tawm los, "235" qhia cov txiaj ntsig muaj zog (hauv megapascals), thiab "B" qhia qib zoo. Cov khoom no muaj lub zog nruab nrab, zoo plasticity thiab toughness, thiab tuaj yeem ua tau raws li cov kev cai ntawm cov pa vuam, khoov, thiab lwm yam kev ua. Nws cov tshuaj muaj pes tsawg leeg feem ntau yog hlau, muaj qee feem ntawm cov pa roj carbon, manganese, silicon, thiab lwm yam, tab sis tsis muaj cov khoom siv hlau, yog li nws cov nqi qis. Nws yuav tsum tau muab sau tseg tias qhov toughness ntawm cov khoom no txo qis ntawm qhov kub thiab txias, thiab kev xaiv tsim nyog yuav tsum tau ua raws li kev siv.

Chemical Component

Qib	Component %, Tsawg dua los yog sib npaug
Qib	C	Mn	P	S	Cu^A	Ni^A	Cr^A	Mo^A	V^A
S hom (seamless yeeb nkab)
GR.A	0.25^B	0.95	0.05	0.045	0.40	0.40	0.40	0.15	0.08
GR.B	0.30^C	1.20	0.05	0.045	0.40	0.40	0.40	0.15	0.08
E hom (Kev tiv thaiv welded yeeb nkab)
GR.A	0.25^B	0.95	0.05	0.045	0.40	0.40	0.40	0.15	0.08
GR.B	0.30^C	1.20	0.05	0.045	0.40	0.40	0.40	0.15	0.08
F hom (Qhov cub Welded yeeb nkab)
A	0.30^B	1.20	0.05	0.045	0.40	0.40	0.40	0.15	0.08

Mechanical Property

yam

GR.A

GR.B

tensile zog, siab tshaj los yog sib npaug, psi [MPa]

Yield zog, ntau dua los yog sib npaug rau , psi [MPa]

Gauge 2in.or 50mm elongation

48 000 [330]30 000 [205]A,B

60 000 [415]35 000 [240]A,B

Q235B welded yeeb nkab siv:

Cov Khoom Siv Hauv Tsev:

Scaffolding: Siv rau fabricating scaffolding thav duab, connectors, thiab lwm yam., ib qho ntawm feem ntau siv nyob rau hauv kev tsim kho qhov chaw.

Steel Structure Supports: Siv tsis yog-thaum thawj lossis theem nrab- cov kabmob xws li lub Hoobkas tsim thav duab, trusses, kab, kab teeb, kev txhawb nqa platform, thiab canopies.

Fences / Guardrails: Siv rau kev tsim kho qhov chaw laj kab, txoj kev guardrails, sam thiaj railings, thiab lwm yam.

Qhov Rooj thiab Qhov Rooj Ncej: Cov khoom siv rau qee qhov yooj yim lossis zoo tib yam qhov rooj thiab qhov rais.

Machinery Manufacturing:

Mechanical Structural Cheebtsam: Siv los tsim cov thav duab, hauv paus, kev txhawb nqa, plhaub, conveyor rollers, tiv thaiv npog, thiab lwm yam khoom ntawm ntau yam tshuab thiab khoom siv uas tsis tas yuav muaj kev ntxhov siab heev.

Agricultural Implements: Siv los tsim cov khoom siv xws li thav ntawv, tes tuav, thiab kev txhawb nqa rau cov tshuab ua liaj ua teb.

Kev thauj mus los ntawm cov kua dej (Low Pressure):

Dej Piping: Cov kav dej siv rau kev thauj khoom qis - siab, ambient - dej kub xws li dej kais dej, dej siv dej, thiab hluav taws kub - tawm tsam dej (yuav tsum ua raws li cov qauv tsim nyog xws li GB/T 3091).

Gas Piping: Cov kav dej siv rau kev thauj khoom tsis yog-corrosive, tsis yog-flammable, thiab tsis yog-cov pa phem xws li compressed cua, qis-siab chav, thiab cov pa roj (yuav tsum ua raws li cov qauv kev nyab xeeb xws li GB/T 3091).

Roj Piping: Cov kav dej siv rau kev thauj khoom qis - siab lubricating roj thiab roj hydraulic (tsis yog- siab- cov tshuab siab).

HVAC: Cov kav dej rau qee qhov qis -siab HVAC systems (xws li cov dej ntws thiab cov qhov cua).

Infrastructure thiab Agriculture: