Seamless Steel Pipe hmanga siam a ni

Seamless steel pipe hmanga siam a nitih hi pipe siam a niwelded seam nei lovin. Solid steel billet tihlum atanga siam a ni a,piercing a, hollow siam turin, chutah chuan tube chu i standard leh grade tarlan angin i tih zawh hmain (heat treatment, end prep, leh final inspection) i mamawh OD leh wall thickness thlengin rolling leh sizing rawh.

Octal Pipe hian hetiang hna hi a ngaih pawimawh ber a ni. International standard hrang hrangah seamless steel pipe kan supply a –API 5L line pipe, ASTM A106 / A53 hmanga process pipe siamna tur, .A179/ Boiler leh heat-exchanger tube atan A213, alloy high-temperature service atan A335, leh EN 10216 leh a kaihhnawih GB/T grade te. Dimensional window chuan a khuh a10.3–1422 mm OD a nileh wall thicknesses thlengin150 mm a ni, chuvangin transmission line, boiler tube, exchanger bundle leh structural member zawng zawng atanga lak chhuah theih a niprogram pakhat coordinated seamless tak a nimill engemaw zatah inthen darh ai chuan.

Size leh grade tin hnung lamah hian controlled a awmthil siam chhuahna kawng: mandrel- emaw plug-mill rolling, heat treatment tihfel, full dimensional check leh NDT / hydrotest scope inremna siam. Batch tin hi release vek a niEN 10204 3.1 emaw 3.2 certificate leh heat traceability kimchang tak a awm bawk, project engineer, QA leh third-party inspector-te audit trail chiang tak pek leh final approval-a last-minute rework emaw hold-ups awm theihna tur tihtlem.

Line hrang hrang hian pipe hrang hrang an mamawh a – mahse zawhna tam tak chu specification kimchang lo emaw, mixed emaw nen a thleng thin. Octal Pipe hian value a tihpun dan pakhat chu lei duhtute tanpui hi a nistandard leh grade dik tak chu hnathawh dan dik tak nen a inmil tur a ni.

A taka hman chuan kan project supply tam zawk hi group tlemteah a tla a:

• Oil & gas siamna tur transmission pipeline siam a ni- atlangpuiinAPI 5L seamless pipe hmanga siam a ni, grade B atanga X70 thleng a ni, PSL1 emaw PSL2 emaw chu design factor leh toughness mamawh dan azirin a ni. Toughness, DWTT (a tul chuan), CVN impact testing leh sour-service options te chu pipeline design code nen kan align a.
• Temperature sang -steam leh process line te – ASTM A106 a ni / A335power plant, refinery leh petrochemical unit-te tan carbon leh alloy grade (Gr.B, P11, P22, P91 ang chi) seamless pipe, controlled heat treatment leh hardness nei.
• Boiler leh heat-exchanger tube te a ni – ASTM A179 / A192 / A213 a nileh low-carbon leh alloy steel tube tan EN 10216 grade inmil, tight wall tolerances leh a tulna hmunah expanded / U-bending allowance nei.
• Temperature hniam-temperature leh cryogenic service a ni – ASTM A333 / EN 10216-4 ah a awm aseamless pipe hmanga impact testing sub-zero temperature tarlan, low-temperature storage, LNG leh cold-service line-a hman thin.
• Sour service hman dan tur– material leh hardness control a, inhmu turinNACE MR0175 / ISO 15156 hmanga siam a niH2S awmna hmunah, sour environment-a cracking leh qualification chungchangah harsatna awm lo.

I process data bulpui (medium, pressure, temperature, design code leh sour / low-temperature mamawh eng pawh) min thawn hian kan map astandard bik, grade leh testing neih ngai te, leh item list thianghlim tak rawn thawn leh rawh. Hei hian i internal team leh consultant-te chu specification chu rang zawka enfiah leh pawmpui turin a pui a, chutih rualin seamless pipe kan supply apiang chu a hnathawh tur atan technically a inmil vek tih a tichiang bawk.

Boiler tube leh high-pressure seamless pipe tan chuan lei duhtute chuan mill pakhatin machine engzat nge a neih tih hi an ngaihtuah lo va, an ngaihtuah zawk bawkchu machine-te chuan practice-a an guarantee chu– steel thianghlimna, dimension nghet leh test result boiler leh pressure-vessel audit paltlang. Octal Pipe-a seamless supply hi chu thil tum chu ngaihtuah chungin melt-to-tube route-ah siam a ni.

Steelmaking atanga Finished Tube thlengin – Key Equipment leh I Tana A awmzia

A chhan chu heng unit te hi run asline pakhat integrated a ni, seamless tube i dawng a, chutah chuan:

• steel fai leh chemistry lam a nimelt atanga control an ni a, tube siam zawh tawhah chauh check ni lovin;
• wall thickness, OD leh straightness te pawh a awm bawkpiercing leh mandrel{0}}mill route inhlan tak atanga lo chhuak an ni a, random adjustment ni lovin;
• UT / eddy-tunah leh lab test teboiler, petrochemical leh power-plant standard atan an awm tawh a, chuvangin i third-party inspection leh code approval chu mak tih tur tlem zawk nen a kal tlang thin.

I lei duh tan chuan Octal Pipe hmanrua hlutna ber chu a awlsam hle:a vawi khatna atana drawing leh code mamawh phuhruk thei seamless tubes, i QA team leh inspector-te rintlak test trail nen.

Seamless steel pipe hi solid billet chu hollow shell-ah piercing-in siam a ni a, chutah chuan hot-rolling/elongating to size, chu chu sizing/straightening leh a tulna hmunah heat treatment hmanga siam a ni.

Buyers ten seamless pipe mill flow chart an en hian a pawimawh ber chu box engzat nge awm tih hi a ni lo va,...quality lock in leh documented a nihna hmunah. Octal Pipe hian chu ngaihtuahna vel chu a mandrel-mill production line chu a structure a – key step tin hian control point a nei a, chu chu MTC leh inspection report-ah a hnu lama zawn chhuah theih a ni.

1. Billet cutting, heating leh piercing – sound steel atanga tan
Tube billet thlan bikte chu a sei zawngin an tan a, a chunglam-check a ni a, chutah chuan rotary hearth furnace-ah controlled temperature uniformity-ah an lum a ni. Chemistry leh surface condition an finfiah hnuah chauh piercing mill-ah an lut thin. Hei hian lamination awm theihna a ti tlem a, kan pierce hollow shell chu high-pressure service atan a fit tawh tih a tichiang bawk.

2. Mandrel mill rolling, stretch tihtlem leh sizing – wall leh ovality control
Pierced shell chu mandrel mill-ah an roll a, chutah chuan stretch-reducing / sizing stands hmangin an kalpui a ni. Hetiang dinhmunah hian kan monitor thinOD, wall thickness leh eccentricity te a awm bawk"pipe siam" mai ai chuan. Heng value te hi agreed tolerances chhunga dah hi a hnua i field bending, welding leh AUT te chu extra cut-outs awm lovin a kal tluang thei a ni.

3. Furnace curve recorded hmanga heat treatment
Grade a zirin pipe te chu normalized emaw quenched emaw an ni a, continuous emaw batch furnace-ah tempered an ni. Load tin atan hun leh temperature record a ni a, chuvangin MTC-a mechanical property leh hardness i hmuh chuan heat-treatment curve tak takin a back a ni. Hei hi API 5L, ASTM A106/A335 emaw EN 10216-a toughness leh hardness limit khauh taka audit a nihna project-te tan a pawimawh hle.

4. Straightening, surface tihfai leh dimensional check te
Cooling hnuah pipe te chu straighten in scale lakchhuah a ni a, chutah chuan OD, wall thickness leh length te chu teh leh a ni. Heng check-te hian pipe chu drawing nen a inmil em tih a tichiang a – a vaiin chauh ni lovin, piece by piece – chuvangin fabrication shop leh site crew-te chuan hun an hmang tlem zawk a, tolerance material-of-of{1}}a siamrem leh cut around-ah an hmang tlem zawk a ni.

5. NDT leh hydrostatic testing – i hmuh theih loh enfiah
Production lot tin hian a kal tlang vek amagnetic flux leakage leh ultrasonic test hmanga enfiah a ni, pipe tawp lam chu magnetic particle enfiahna hmanga enfiah belh a ni. Defects te chu paih emaw, pipe chu hydrostatic testing a thlen hmain hnawl emaw a ni. Hydrotest neih chhung hian pipe tin chu pressure pek a ni a, test pressure tarlan angin an vawng tlat a, chu chuan i line design pressure a tuar thei tih documented proof a pe a ni.

6. Measuring, coating, marking leh packing – i project atana inpeih taka siam
A tawp berah chuan pipe te chu an rit a, an teh a, chutah chuan a sawi angin spray-painted emaw coated emaw an ni a, end caps an vuah bawk. A sei zawng hian marking line chiang tak (size, grade, standard, heat number) a keng tel a, bundle-te chu tagged a ni a, packing list-te chu inspection document-te nen a inmil a ni. Hei hian neitu, EPC leh third-party inspector te chu site-a pipe eng pawh chu a test result thlengin rinhlelhna awm lovin a trace thei a ni.

Project case kaihhnawih te en rawh

Hetah hian click la

I tehkhin a nih chuan aChina ramah seamless steel pipe siamtu a ni, thutlukna siam chu mill route control, inspection scope, leh traceability chungchang a ni tlangpui-chute chu real pakhat inthenna chu a niseamless steel pipe siamna hmun a nisupply chu trading-chu chauh quote atanga lak a ni.

• Metallurgy hmasa ber – high-pressure service atan steel thianghlim

Kan seamless pipe hi a tan a niEAF + LF / VD hmanga tihthianghlim a ni, controlled billet-ah paih a, chutah chuan mandrel / plug mill-ah roll a ni. Steelmaking stage-ah gas awm zat leh inclusions a tlahniam a, hei hian a hnuah harsatna thup a tlem zawk tihna a niUT, hahna emaw, creep service emaw. Boiler leh high-temperature grade tan chuan kan ngaihven hlegrain size, carbide distribution leh hardenability te a ni, chuvangin long-term property te chu "lucky heats" ah an innghat lo.

• Rolling leh heat treatment chu grade tinah tuned a ni

Piercing, elongation leh sizing te hi grade leh wall thickness nen a inmil a, one-size-fits-all setting-ah kalpui a ni lo. Rolling hnuah pipe a kal tlang thinnormalizing, quench-leh-temper emaw bright annealing emaw a ni, furnace curve te chu load khatah archive a ni. Nang tan chuan hei hian a awmzia a niA106, A335, A179 / A213, EN 10216 leh API 5L te a nigrades te hian mechanical property an nei a, chu churepeatable heat atanga a lum thlengin, minimum value chhungah chauh ni lovin.

• Mill chhunga dimensional control siam, hmuna fix loh

Seamless hi bend, tight rack leh high-pressure header-ah te hman a nih fo avangin kan ngaihtuah ber a niOD, wall tolerance, eccentricity leh straightness te a nimill-ah chuan. Mandrel / stretch-reduction mill te hi tube chu tolerance window mamawh chhunga awm reng turin an siam ainduction bending, cold bending leh automatic welding te a awm bawk. Hei hian yard chhunga sort leh "pick the best pieces" tih a ngai lo.

• Boiler, pipeline leh plant code nena inmil test programme te

Bare minimum test chauh pek ai chuan kan supply fo thinhydrotest, full-body UT / eddy-current, hardness check, impact test leh special exam te neih a ni bawk(eg low-temperature CVN, creep rupture, HIC) project code leh spec mamawh ang chiah a ni. Result tin hi a inzawm tlat a niheat number leh pipe lot te pawh a awm bawk, chuvangin i QA team leh pawn lam inspector te chuan engkim re-test ngai lovin line chu an audit thei ang.

A tan chuan aseamless steel pipe lakluhna hmun a ni, a tlai ber chu documentation inmil lohna leh mixed lots a ni tlangpui.

Heat/lot nena inzawm packing/marking list nen kan thawn a, chutiang chuan importer chuan receiving a clear thei a, re-sorting ngai lovin QA a project thei bawk.

A tawi zawngin, .Octal Pipe hmanga siam a nichu commodity tube man tlawm ber anga position a ni lo va, asprocess-controlled material chu line hrang hrangah failure chu option a ni lo– pressure sang-temperature sang-temperature leh plant service pawimawh tak tak.

Quote tihdanglamtu

• Seamless steel pipe man pawh a to hlea ni ber chu OD/WT, grade, heat treatment, test mamawh (UT/hydrotest), quantity, leh delivery terms te a ni.
• Offer tehkhin theih tur i hmuh theih nan RFQ chu size range, standard/grade, length, end type, leh inspection/document pack dik tak mamawh nen thawn rawh.
• I PO/ITP hian 3.2 certification, NDT coverage, emaw special testing emaw a dah belh chuan a man leh lead time chu a zirin a inthlak thin.

Tunah hian biak theih reng e

Buaina tlanglawn tak

Seamless steel pipe atan hian Octal Pipe hian eng size leh grade range nge a supply theih ang?

API 5L, ASTM A106/A53, A179, A213, A335 leh EN 10216 grade-ah 10.3–1422 mm OD atanga 150 mm wall thickness thlenga seamless pipe kan supply a ni.

I seamless pipe te hian project leh third{0}}party inspection requirement khauh tak tak te chu a tlin thei ang em?

Awle. Batch tin hian EN 10204 3.1 / 3.2 MTCs, defined NDT leh hydrotest reports leh project leh third-party audits thlawp turin full heat traceability te a keng tel vek a ni.

Engvangin nge designer te hian line pakhat chu "SMLS only" tiin an mark fo thin?

Line te chu chhinchhiah a ni"SMLS" tih a ni.designer-in system-a longitudinal weld a duh loh hunah – a tlangpuiinpressure sang tak, temperature sang tak, cyclic loading nasa tak, bend na tak emaw, rotating equipment hnaih ber line emaw a awm. Hetiang hunah hian seamless pipe hian weld seam chu crack emaw corrosion emaw awm theihna tur initiation point atan a paih chhuak thin.

Pipe te hi eng fabrication leh delivery service nge i pek theih ang?

Cut-to-length pipe chu beveling, threading emaw grooved ends neiin kan supply thei a, chubakah i project specification angin coating, marking leh export packing kan supply thei bawk.

Certification pek chhuah a ni

 

CE Certificate neih a ni

ISO 9001 Certificate a ni

API Q1 Certificate a ni

ABS Certificate a awm bawk

AP-5L Certificate pek a ni

API-5CT Certificate pek a ni

 

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