ASTM A335 Alloy Steel Seamless Pipe

Tsanangudzo Pfupi

ASTM A335 inowanzonzi chrome moly pombi nekuda kwekemikari ine Molybdenum (Mo) uye Chromium (Cr).Molybdenum inowedzera simba resimbi uye Chromium (kana chrome) ndiyo yakakosha simbi isina tsvina.Iyo inoumbwa chrome moly alloy simbi pombi inoita kuti ive yakakodzera kushandiswa mumagetsi emagetsi, anonatsa, peturu makemikari zvidyarwa, uye oiri munda masevhisi uko mvura nemagasi zvinotakurwa pakupisa kwakanyanya uye kumanikidza.

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Kurwisana kwakasimba kwekuputika pakupisa kwepamusoro uye kudzvinyirira kwakanyanya.

Inogona kushandiswa kuHydrogen Sulfide Corrosion Services.

Kupokana nekutsemuka kubva ku hydrogen kurwisa uye embrittlement.

Inodzivirira kune inopisa sulfide corrosion cracking.

Inogona kushandiswa kuNACE Zvishandiso uko nzvimbo dzakasvibirira dziri pasi pekupisa uye kudzvanywa.

Inogona kushandiswa muNACE-MRO 175 Sour Service.

Ideal for creep rupture applications.

Inogona kubata tembiricha yakakwira ine yakaderera elasticity.

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Kemikari Kuumbwa kweAstm a335 Alloy Steel Seamless Pipe

Mhando dzesimbi alloy akafukidzwa neASTM A335 - ASME SA335 tsanangudzo dzakagadzirwa ne "P" prefix, kubva P5 kusvika P92.Magiredhi P11/P22 uye P91/92 anowanzo kuwanikwa muzviteshi zvemagetsi, nepo giredhi P5 neP9 zvakajairika pakushandiswa muindasitiri yepetrochemical.Magiredhi P9, P91 ari, mune rondedzero, anodhura zvakanyanya

ASTM A335Low-Alloy Steel(Giredhi)	UNS yakaenzana	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

Mechanical Properties yeAstm a335 Alloy Steel Seamless Pipe

A335 Low-Alloy Pipe	Nhamba yeUNS	Goho Simba ksi	Tensile Simba ksi	Elongation %	Kuoma
A335 Low-Alloy Pipe	Nhamba yeUNS	Goho Simba ksi	Tensile Simba 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 max
P22	K21590	30	60	30	-	-
P91	K91560	60	85	20	-	-

Kupisa Kurapa

Alloy Steel pombi inobatwa kupisa kuti iwane ma mechanic zvivakwa sezviri kudiwa alloying element.Pasi pane mamwe emhando dzekurapa kwekupisa.

Normalize Kudzima uye Kudziya.

Kudzima uye kudziya.

Normalizing & Hardening.

Testing Zvinodiwa

Transverse/longitudinal: tension and flattening, kuoma, bend tests- yezvinhu zvakapiswa-kupiswa mubatch furnaces, bvunzo idzi dzichaitwa pa5% yepombi kubva kune imwe neimwe nhamba yekupisa.Pamajenya madiki, pombi imwe padikidiki inofanirwa kuongororwa.

ASTM A335 Gr.P91 ichave nekuoma kwe250 HB / 265 HV (25 HRC).

Kuyedzwa kweHydro: ichaiswa kune hurefu hwese hwepombi.

Iyo isingaparadzi yemagetsi bvunzo ndeyekusarudza.

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