ASTM A335 P9 Chrome Moly Yeeb Nkab

Seamless Ferritic Alloy-Steel P9 Pipe piav qhia

‌P9​ yog ferritic chromium-molybdenum alloy steel uas muaj cov alloying tshwj xeeb uas qhia tau zoo heev -kub kev ua tau zoo thiab ruaj khov, feem ntau siv nyob rau hauv siab - kub thiab siab - qhov chaw siab.

Lub ntsiab alloying ntsiab ntawmA335 P9 alloy steel kavsuav nrog chromium (feem ntau 8% txog 10%) thiab molybdenum (kwv yees li 0.9% txog 1.1%). Nws kuj muaj me me ntawm carbon, silicon, manganese, phosphorus, thiab sulfur. Qhov kev sib xyaw ua ke no muab cov khoom siv zoo siab -kub tsis kam thiab corrosion kuj. Nyob rau hauv siab - qhov kub thiab txias, A335 P9 alloy steel kav tuav lub zog siab, tiv taus deformation lossis tsis ua haujlwm. Lub microstructure feem ntau yog ferritic, ua kom muaj kev ruaj ntseg txawm tias nyob rau lub sijhawm ntev - qhov kub thiab txias.

 

ASTM A335 P9 yeeb nkab specification

Xaus	Plain End, Beveled kawg, Treaded
Txuj	ASTM A335 P9, SA335 P9 (nrog IBR Test Certificate)
Ua siab ntev	Cov yeeb nkab txias txias: +/- 0.1mm Cov yeeb nkab txias txias: +/- 0.05mm
Thickness	3-12 hli
Loj	1/2 "NB to 36" NB
Daim ntawv thov	Seamless Ferritic Alloy-Steel Yeeb Nkab rau Siab-Tsev Kev Pabcuam
Khoom siv tes ua	Cold rolled thiab Cold drawn
Hom	Seamless / ERW / Welded / Fabricated
muaj nyob rau hauv Form of	Round, Square, Rectangular, Hydraulic thiab lwm yam.
Ntev	Txuj Muab ob npaug & Hauv Cut length kuj.
Tshwj xeeb hauv	Loj Dia ASTM A335 P9 Yeeb Nkab
Kev kuaj ntxiv	NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, thiab lwm yam.
Teem caij	SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, Tag nrho cov sij hawm

 

ASTM A335 Gr P9 Cov Lus Qhia

C, %	Mn,%	P, %	S, %	Si,%	Cr,%	Mo,%
0.015 max	0.30-0.60	0.025 max	0.025 max	0.50 max	4.00-6.00	0.45-0.65

 

ASTM A335 P9 Khoom

Tensile zog, MPa	Yield zog, MPa	Elongation,%
415 nqi	205 feeb	30 feeb

 

A335 P9 Alloy Seamless Yeeb Nkab Ntau Lawm Txheej Txheem‌

‌Kub-Rolled (Extruded) Seamless yeeb nkab‌

‌Billet Cua sov: Round billet yog rhuab rau forging kub (~ 1200 degree).

‌Piercing: Lub mandrel yog siv los tsim lub plhaub hollow.

‌Rolling / Extrusion: Lub plhaub tau txais peb - yob hla- dov, nruam dov, lossis extrusion los ua cov yeeb nkab seamless.

‌Qhov loj me / txo: Cov yeeb nkab yog calibrated rau qhov kawg qhov ntev.

‌Txias & Ncaj: Cua lossis dej txias ua raws li kev ncaj.

‌Kev sim: Hydrostatic siab lossis tsis yog -kev kuaj kev puas tsuaj (NDT) rau qhov tsis xws luag.

‌Cim & Cia: Kev tshuaj xyuas zaum kawg, kos npe, thiab khaws cia.

‌

Txias-Drawn (Cold-Rolled) Seamless Pipe‌

‌Billet Cua sov & Piercing: Zoo ib yam li kub- txheej txheem dov.

‌Heading & Annealing: Lub billet yog headed thiab annealed rau ductility.

‌Pickling & Txheej: Acid tu thiab tooj liab plating rau lubrication.

‌Txias Drawing / Rolling: Ntau qhov hla mus ua kom tiav qhov ntev.

‌Kev kho cua sov: Normalizing lossis tempering los ua kom zoo dua microstructure.

‌Kev Ncaj Ncees & Kev Xeem: Final straightening and NDT.

‌Cim & Cia: Ua raws li cov cim thiab cia.

 

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