I-ASTM A335 Alloy Steel Pipe engenamthungo

Incazelo emfushane:

I-ASTM A335 ivamise ukubizwa nge-chrome moly pipe ngenxa yekhemikhali equkethe i-Molybdenum (Mo) ne-Chromium (Cr).I-Molybdenum inyusa amandla ensimbi futhi i-Chromium (noma i-chrome) iyisakhi esibalulekile sensimbi engagqwali.Ipayipi lensimbi le-chrome moly alloy steel liyenza ilungele ukusetshenziswa ezimbonini zikagesi, izindawo zokuhluzwa, ezimbonini zamakhemikhali kaphethiloli, nasezinsizeni zenkundla kawoyela lapho uketshezi namagesi kuhanjiswa khona emazingeni okushisa aphakeme kakhulu nezingcindezi.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Isingeniso Somkhiqizo

Ukumelana okuqinile nokuqhekeka emazingeni okushisa aphezulu kanye nezingcindezi eziphezulu.

Ingase isetshenziselwe IHydrogen Sulfide Corrosion Services.

Imelana nokuqhekeka kusuka ekuhlaselweni kwe-hydrogen kanye ne-embrittlement.

Imelana nokuqhekeka kokugqwala kwe-sulfide eshisayo.

Ingasetshenziselwa izinhlelo zokusebenza ze-NACE lapho izindawo ezimuncu zingaphansi kokushisa okuphezulu nokucindezela.

Ingasetshenziswa ku-NACE-MRO 175 Sour Service.

Ilungele izinhlelo zokusebenza zokuqhuma kwe-creep.

Iyakwazi ukuphatha amazinga okushisa aphezulu ngokunwebeka okuphansi kakhulu.

Isibonisi somkhiqizo

Ukwakhiwa Kwekhemikhali kwe-Astm a335 Alloy Steel Seamless Pipe

Izinhlobo zensimbi ye-alloy embozwe ukucaciswa kwe-ASTM A335 - ASME SA335 zakhiwe ngesiqalo esithi "P", kusukela ku-P5 kuya ku-P92.Amabanga P11/P22 kanye ne-P91/92 ngokuvamile atholakala eziteshini zikagesi, kuyilapho ibanga elithi P5 ne-P9 livame ukusetshenziswa embonini ye-petrochemical.Amabanga P9, P91, ohlwini, abiza kakhulu

Insimbi ye-ASTM A335Low-Alloy(Ibanga)	UNS okulingana	C≤	Mn	P≤	S≤	Si≤	Cr	Mo
P1	K11522	0.10~0.20	0.30~0.80	0.025	0.025	0.10~0,50	-	0.44~0,65
P2	K11547	0.10~0.20	0.30~0.61	0.025	0.025	0.10~0.30	0.50~0,81	0.44~0,65
P5	K41545	0.15	0.30~0.60	0.025	0.025	0.5	4.00~6.00	0.44~0,65
P5b	K51545	0.15	0.30~0.60	0.025	0.025	1.00~2.00	4.00~6.00	0.44~0,65
P5c	K41245	0.12	0.30~0.60	0.025	0.025	0.5	4.00~6.00	0.44~0,65
P9	S50400	0.15	0.30~0.60	0.025	0.025	0.50~1.00	8.00~10.00	0.44~0,65
P11	K11597	0.05~0.15	0.30~0.61	0.025	0.025	0.50~1.00	1.00~1.50	0.44~0,65
P12	K11562	0.05~0.15	0.30~0.60	0.025	0.025	0.5	0.80~1.25	0.44~0,65
P15	K11578	0.05~0.15	0.30~0.60	0.025	0.025	1.15~1.65	-	0.44~0,65
P21	K31545	0.05~0.15	0.30~0.60	0.025	0.025	0.5	2.65~3.35	0.80~1.60
P22	K21590	0.05~0.15	0.30~0.60	0.025	0.025	0.5	1.90~2.60	0.87~1.13
P91	K91560	0.08~0.12	0.30~0.60	0.02	0.01	0.20~0,50	8.00~9.50	0.85~1.05
P92	K92460	0.07~0.13	0.30~0.60	0.02	0.01	0.5	8.50~9.50	0.30~0.60

I-Mechanical Properties ye-Astm a335 Alloy Steel Seamless Pipe

Ipayipi le-A335 Low-Alloy	Inombolo ye-UNS	Isivuno Amandla ksi	Amandla Aqinile ksi	Elongation %	Ukuqina
Ipayipi le-A335 Low-Alloy	Inombolo ye-UNS	Isivuno Amandla ksi	Amandla Aqinile ksi	Elongation %	Rockwell	Brinell
P1	K11522	30	55	30	-	-
P2	K11547	30	55	30	-	-
P5	K41545	40	70	30	-	207 max
P9	S50400	30	60	30	-	-
P11	K11597	30	60	20	-	-
P12	K11562	32	60	30	-	174 ubuningi
P22	K21590	30	60	30	-	-
P91	K91560	60	85	20	-	-

Ukwelashwa Kokushisa

Ipayipi lensimbi ye-alloy liphathwa ngokushisa ukuze kuzuzwe izakhiwo zemishini njengengxenye ye-alloying oyifunayo.Ngezansi ezinye zezinhlobo zokwelapha ukushisa.

Ukunciphisa Ukushisa Nokushisa.

Ukunciphisa kanye nokushisa.

Ukujwayela nokuqinisa.

Izidingo Zokuhlola

I-Transverse/longitudinal: ukushuba kanye nokwenza isicaba, ukuqina, ukuhlolwa kokugoba- kwempahla efakwe ukushisa ezithandweni zenqwaba, lezi zivivinyo kufanele zenziwe ku-5% wamapayipi enombolweni ngayinye yokushisa.Ezinkatho ezincane, ipayipi elilodwa okungenani kufanele lihlolwe.

I-ASTM A335 Gr.I-P91 izoba nobulukhuni be-250 HB / 265 HV (25 HRC).

Ukuhlolwa kwe-Hydro: kuzosetshenziswa kubo bonke ubude bepayipi.

Ukuhlolwa kukagesi okungangonakali kuyakhethwa.

Okwedlule: Din 17175 16Mo3 Seamless High Pressure Alloy Steel Boiler Tube

Olandelayo:15CrMo Seamless Alloy Steel Pipe/Tube