GB3087 Low Pressure Boiler Seamless Steel Pipe

Kufotokozera Kwachidule:

GB 3087 20 # machubu opanda zitsulo amagwiritsidwa ntchito kwambiri popanga ma mapaipi otenthetsera, zotengera, mapaipi otenthetsera a ma boiler otsika apakati.

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Chiyambi cha Zamalonda

Kupanga:Njira yopanda msoko, Yotentha-yomaliza kapena Yozizira-yomaliza.
Makulidwe a khoma (WT):3.2 mm——21 mm.
M'mimba mwake (OD):33 mm——323 mm.
Utali:6M kapena kutalika kwake komwe kumafunikira.
Kutha:Mapeto Oyera, Mapeto A Beveled, Opondapo.

Zowonjezera Zambiri

Port of Shipment: Tianjin, China.
Malipiro: T / T, LC.
Kutumiza: 7-15 masiku pambuyo malipiro.
Pamwamba: Machubu adzapakidwa vanishi (Kunja kokha) kuteteza dzimbiri.
Kulemba: Standard + Steel Giredi + Kukula + Kutentha No + Loti No.
Phukusi: Mitolo (ma hexagonal), Mabokosi Amatabwa, Mabokosi (zitsulo / matabwa) kapena pakufunika.

Njira Zopangira

(1) Njira yopangira zitsulo
Zitsulo zimapangidwa ndi ng'anjo yamagetsi, chosinthira oxygen kapena njira yotseguka yamoto.

(2) Njira yopanga chubu yopanda kanthu
Chubu chopanda kanthu chikhoza kupangidwa ndi njira yotentha yozungulira, ndipo billet yosalekeza kapena ingot yachitsulo ingagwiritsidwenso ntchito.

(3) Kupanga njira yachitsulo chitoliro
Chitoliro chachitsulo chikhoza kupangidwa ndi kugudubuza kotentha (extrusion, kukulitsa) kapena kujambula kozizira (kugudubuza) njira yopanda phokoso.

Chiwonetsero cha Zamalonda

Mapangidwe a Chemical (%)

Standard	Gawo lachitsulo	C	Si	Mn	S	P	Cr
Mtengo wa GB3087	10	0.07-0.13	0.17-0.37	0.35-0.65	0.02	0.025	≤0.15
Mtengo wa GB3087	20	0.17-0.23	0.17-0.37	0.35-0.65	0.02	0.025	≤0.25

Mechanical Properties

Standard	Chitoliro chachitsulo	Khoma makulidwe	Kulimba kwamakokedwe	Zokolola Mphamvu	Elongation
		(mm)	(MPa)	(MPa)	%
				≥
GB3087	10	/	335-475	195	24
	20	＜15	410-550	245	20
	20	≥15	410-550	225	20

Kupatuka Kololedwa Kwa Diameter Yakunja Ndi Makulidwe Akhoma

Mtundu wa chitoliro chachitsulo	M'mimba mwake (mm)		Kulekerera
Mtundu wa chitoliro chachitsulo	M'mimba mwake (mm)		wamba	patsogolo
Hot adagulung'undisa chubu	OD	≤159	± 10% (mphindi ± 0.50mm)	± 0.75% (mphindi ± 0.40mm)
	OD	＞159	±1.0%	± 0.90%
	WT	≤20	＋15.0%(mphindi＋0.45mm) - 12.5% -0.35mm)	± 10% (mphindi ± 0.30mm)
		＞20	± 12.5%	±10%
		OD≥351	± 15%
Chozizira chokoka chubu	OD	10-30	± 0.40mm	± 0.20mm
		30-50	± 0.45mm	± 0.25mm
		＞50	±1.0%	± 0.75%
	WT	1.5-3.0	+ 15% -10%	±10%
	WT	＞3.0	+ 12.5% -10%	±10%

Mayesero

(1) Mayeso a Hydraulic
Chitoliro chachitsulo chiyenera kuyesedwa ndi hydraulically mmodzimmodzi.

(2)Mayeso osalala
Mapaipi achitsulo okhala ndi mainchesi akunja opitilira 22mm mpaka 400mm ndi makulidwe a khoma osapitilira 10mm adzayesedwa kuphwanyidwa.

(3)Kuyesa kwamphamvu
Chitoliro chachitsulo chokhala ndi makulidwe a khoma osapitirira 8 mm chikhoza kuyesedwa pamoto ndi taper pamwamba pa 30 °, 45 ° kapena 60 °.

(4) Mayeso opindika
Mapaipi achitsulo okhala ndi mainchesi akunja osapitilira 22 mm adzayesedwa kupindika.

(5)Kuyesa kosawononga
Malinga ndi zofunikira za wogula, chitoliro chachitsulo chidzayesedwa ultrasonically mmodzimmodzi.

Ubwino Wapamwamba

Mawonekedwe amkati ndi akunja a chitoliro chachitsulo alibe ming'alu, mapindikidwe, ma creases, crusting kapena kupatukana, ndipo zolakwikazi ziyenera kuchotsedwa kwathunthu.Kuzama kwachilolezo sikuyenera kupitirira kupatuka koyipa kwa makulidwe a khoma, ndipo makulidwe enieni a khoma pa malo oyeretsera sangakhale ochepa kuposa omwe amaloledwa ndi khoma.