GB/T 9948-2013 Qib 1Cr2Mo Petroleum Cracking Pipes Seamless Steel Pipes

Lus piav qhia luv luv:

Petroleum cracking yeeb nkab yog hollow, ntev, round seamless steel yeeb nkab.Daim ntawv thov ntawm cov roj av tawg yeeb nkab: Nws yog siv rau kev thauj cov roj av, roj av, roj av thiab lwm yam khoom siv roj, uas tuaj yeem tiv taus corrosion thiab hnav.Petroleum cracking yeeb nkab (gb9948-83) yog thawj-chav kawm steel yeeb nkab haum rau geological drilling thiab industrial drilling.

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Khoom taw qhia

Petroleum cracking yeeb nkab txiav cov khw muag khoom, roj av cracking yeeb nkab txiav ua, roj av cracking yeeb nkab yog tsuas yog siv los tsim kev kub siab thiab siab dua siab chav boiler pipeline ntawm siab zoo carbon structural steel, alloy structural steel thiab stainless kub-resistant steel siab siab seamless raj, cov no boiler raj ua haujlwm nyob rau hauv qhov kub thiab txias, lub raj nyob rau hauv lub luag hauj lwm ntawm kub flue roj thiab dej vapor kuj yuav oxidation thiab corrosion, yog li ntawd cov roj av cracking yeeb nkab yuav tsum tau muaj lub siab ntev lub zog yog li ntawd, cov roj av cracking raj yuav tsum tau. muaj zog endurance siab, siab oxidation kuj, thiab zoo koom haum stability.

Lub hardenability ntawm cov roj av cracking yeeb nkab muaj kev cuam tshuam zoo rau cov khoom siv kho tshuab, tab sis tsis yog txhua yam khoom siv yuav tsum tau ua kom tiav.Piv txwv li, dabtsi yog khoov, torsion kev nyuaj siab ncej qhov chaw, nto tshav kub kho qhov chaw, thiab lwm yam, tsuas yog xav tau ib tug tej yam tob ntawm hardened txheej kom tau raws li qhov yuav tsum tau ntawm kev siv.Lub quenchability ntawm roj av cracking yeeb nkab yog txiav txim siab los ntawm qhov tseem ceeb ntawm qhov txias txias, qhov me me ntawm qhov tseem ceeb ntawm qhov txias txias, qhov zoo dua qhov quenchability ntawm roj av cracking yeeb nkab, thiab vice versa, qhov qis quenchability ntawm roj av cracking yeeb nkab.Ntxiv rau Co, feem ntau ntawm cov ntsiab lus alloying tuaj yeem txhim kho qhov hardenability ntawm steel.

Kev Taw Qhia Kev Lag Luam

Petroleum cracking yeeb nkab ua lag luam nce thiab nqis, qhov ntev thiab luv kev ua si yog khaus, kev ua lag luam yog sib xyaw bearish, uas kuj coj mus rau txoj kev loj hlob ntawm kev tos-thiab-saib mus ob peb vas, kev lag luam xav tau nres.Raws li hnub kawg ua lag luam ua ntej hnub so nyiaj so koobtsheej cov nqi qis dua, thiab tsis muaj kev lag luam yav tom ntej thaum hnub so, yog li ntawd, kev lag luam qhib rau lub 10 yav tom ntej tseem muaj qhov txuas ntxiv ntawm kev poob qis.Yog tias yav tom ntej mus qis dua, thaum tsis muaj xov xwm zoo los txhawb qhov tshwm sim ntawm cov roj av tawg yeeb nkab chaw lag luam kom ua raws li qhov poob qis, cov roj av tawg yeeb nkab nqi yuav tsum khiav tsis muaj zog.

Sab nrauv phab ntsa thickness

Sab nraud txoj kab uas hla / mm	Phab ntsa thickness / hli
	1	1.5	2	2.5	3	3.5	4	5	6
	Theoretical zoo / (kg / m)
10	0.222 ib	0.314 ib	0.395 ib
14	O.321	0.462 ib	o.592 ua	o.709 ua
18			0.789 ib	0.956 ib
19			0.838 ib	1.02 ib
25			1.13	1.39 ib	1.63 ib
32				1.82 ib	2.15	2.46 ib	2.76 ib
38					2.59 ib	2.98 ib	3.35 Nws
45					3.11	3.58 ib	4.04 ib	4.93 ib
57							5.23	6.41 ib	7.55 ib
60							5.52 ib	6.78 ib	7.99 ib

Khoom Qhia

Mechanical zog

Txuj	Hom	Tensile zog (MPa)	Yield zog (MPa)	Elongation (%)	Impact zog (J)	Brinell hardness (HB)	Delivery Status
wb 9948	10	330-490 Nws	≥205	≥ 24	/	/	Qhov hluav taws kub zoo
20	410-550 Nws	≥245	≥ 21	≥39	/	Qhov hluav taws kub zoo
15 CrMo	440-640 Ib	≥235	≥ 21	≥47	≤170	Normalizing thiab tempering
1cr2 hmo	≥390	≥175	≥ 22	≥92	≤179	Normalizing thiab tempering
1cr5 hmo	≥390	≥195	≥ 22	≥92	≤187	Annealing

Cov khoom tseem ceeb muaj pes tsawg leeg.

10 # (st35), 20 # (st45), 35 # (st55), 45 # (st45), 16Mn (st52), thiab lwm yam.

DIN2391-81 tus qauv txheej txheem sab nraud yog 0.08-0.10, sab hauv txoj kab uas hla yog 0.10-0.15, phab ntsa thickness kam rau ua yog 0.10-0.15.

Tshuaj muaj pes tsawg leeg

Txuj	Hom	Tshuaj muaj pes tsawg leeg (%)
C	Si	Mn	P	S	Cr	Mo	Ni
wb 9948	10	0.07-0.14 dr hab	0.17-0.37 Nws	0.35-0.65 Nws	≤ 0.035	≤ 0.035	≤ 0.15	/	≤ 0.25
20	0.17–0.24 dr hab	0.17-0.37 Nws	0.35-0.65 Nws	≤ 0.035	≤ 0.035	≤ 0.25	/	≤ 0.25
15 CrMo	0.12–0.18 dr hab	0.17-0.37 Nws	0.40-0.70 Nws	≤ 0.035	≤ 0.035	0.80-1.10 Nws	0.40-0.55 Nws	≤ 0.30
1cr2 hmo	≤ 0.15	0.50—1.00 Nws	0.30-0.60 Nws	≤ 0.035	≤ 0.030	2.15-2.85 Nws	0.45-0.65 Nws	/
1cr5 hmo	≤ 0.15	≤0.50	≤ 0.60	≤ 0.035	≤ 0.030	4.00 – 6.00 Nws	0.45-0.60 Nws	≤ 0.60	Hlau