Tubo saldato Q235 20# ERW/LASW per acqua/gas/olio

Luogo di origine:	Shandong, Cina
Marca:	Changshengda(CSD)
Numero di modello:	Q195/Q235/Q345 SS400
Certificazione:	API, CE, GS, ISO9001
Quantità di ordine minimo:	20 tonnellate
Prezzo:	545USD/TON-680USD/TON
Imballaggi particolari:	1. Imballaggio marino standard
	2.Secondo le esigenze del cliente
porto:	Porti di Shanghai, Tianjin, Qingdao, puoi specificare altri porti in base alle tue esigenze.
Tempi di consegna:	8-14days
Condizioni di pagamento:	L / C, T / T
Capacità di fornitura:	100000tons / mese
Materiale:	ERW:Q235, Q345, 20#, J55, X42~65, ecc.
	LASW:Q195,Q235,Q345B,X42,X52,X60,S355JRH,S355J0H,S355J2H etc

Descrizione:

Straight seam high frequency (ERW) is divided into two forms: induction welding and contact welding according to different welding methods. It uses hot-rolled wide coils as raw materials and undergoes pre-bending, continuous forming, welding, heat treatment, sizing, straightening, cutting, etc. Compared with the spiral process, it has the advantages of shorter welds, high dimensional accuracy, uniform wall thickness, good surface quality, and high pressure resistance. However, the disadvantage is that it can only produce thin-walled pipes of small and medium diameters, and gray spots and lack of fusion are prone to occur at the welds. , Groove corrosion defects. At present, the most widely used fields are city gas, crude oil and refined oil transportation, etc.

Straight seam submerged arc (LSAW) is produced by using a single medium-thick plate as raw material, pressing (rolling) the steel plate in a mold or forming machine, and using double-sided submerged arc welding and diameter expansion. Its finished product specifications range is wide, the toughness, plasticity, uniformity and density of the weld are good, and it has the advantages of large pipe diameter, thick pipe wall, high pressure resistance, low temperature resistance and strong corrosion resistance. When constructing high-strength, high-toughness, and high-quality long-distance oil and gas pipelines, most of the required steel pipes are large-diameter, thick-walled straight seam submerged arc pipes. According to API standards, in large-scale oil and gas transmission pipelines, straight-joint submerged arc is the only designated applicable pipe type when passing through Class 1 and Class 2 areas such as alpine zones, seabed, and densely populated urban areas.

Secondo diversi metodi di stampaggio, può essere suddiviso in:

UOE steel pipe: After the single steel plate is pre-bent at the edge, it undergoes processes such as U forming, O forming, internal welding, external welding, and mechanical cold expansion.

JCOE steel pipe: that is, pre-welding, forming, and cold expansion after welding according to "J-C-O-E"

HME steel pipe: formed by mandrel rolling method according to "C-C-O", welded and then cold expanded.

Specifiche tecniche:

TUBO ERW
ASTM	ASTM A53 B, ASTM A178, ASTM A252 GR.2, A500, ASTM A513
EN	EN 10204/10217 S235JR,S275JR,S355,S355JR,S355J2H
API	API 5L X42/46/52/56/60/70
Acciaio al carbonio	ASTM A671, ASTM A672
Acciaio legato	ASTM A691
OD	1/2" -24" (21.3mm-610mm)
WT	1.65mm-20mm
Applicazioni	Tubo di linea; OCTG (Prodotti tubolari del paese petrolifero); Tubo strutturale rotondo; Tubo di rivestimento.

TUBO LSAW
Standard	ASTM 53;Specifica API 5L;ASTM A252-89; EN10217, EN10219
Gradi d'acciaio	API 5L: GR A, GR B, X42, X46, X56, X60, X65, X70ASTM A252 GR 1, GR 2, GR 3ASTM A53: GR A, GR B, GR C, GR DBS 4360: Grade 43, Grade 50EN: S275, S275JR, S355JRH, S355J2H
Applicazioni	Utilizzato per petrolio/gas/acqua; trasmissione; ingegneria; progetti offshore.
Impiego	OD (mm)	WT (mm)	LUNGHEZZA(m)
Tubo a rulli	1200-3800(47.24”-150”)	12-120 (1/2”- 4.7”)	<= 3.2
per la costruzione (pali di tubi)	350-1600(14”- 63”)	6-60 (1/4” -2.36”)	6-12
Oleodotto e gasdotto	406-1524(16”- 60”)	6-40 (1/4”-1.57”)	8-12.1
Oltre alle specifiche di cui sopra, i tubi possono essere prodotti secondo le esigenze del cliente.

Particolare rapida:

Descrizione:

Tubo in acciaio a giuntura diritta per trasporto fluidi a bassa pressione

Diametro: 219 mm ~ 508 mm

Spessore della parete: 6 mm~20 mm

Standard: GB / T 3091-2008

Materiale: L245~L690, Q235, ecc.

Applications: Suitable for straight seam welded steel pipes used in the transportation of low-pressure fluids such as water, gas, air, and heating steam and other structures.

Tubo in acciaio saldato con cucitura diritta standard americano

Diametro: 219 mm ~ 406 mm

Spessore della parete: 6 mm ~ 14 mm

Norma: ASTM

Materiale: GrA GrB

Applications: Mainly used in water conservancy projects, oil and gas industry, chemical industry, electric power industry, agricultural irrigation, urban construction, etc.

Tubi in acciaio a cucitura diritta per carter olio e tubi olio

Diametro 219 mm~508 mm

Spessore della parete 6 mm ~ 20 mm

API-5CT standard

Materiale H40, J55, N80, P110

Applicazione: Involucri e tubi dell'olio.

Tubo in acciaio saldato a spirale standard americano

Diametro 219 mm~3520 mm

Spessore della parete 5 mm ~ 26 mm

Norma ASTM

Materiale Gr.A, Gr.B, Gr.C, Gr.1~Gr.11

Application: Mainly used in pile pipes for water conservancy projects, oil and gas industry, chemical industry, electric power industry, agricultural irrigation, urban construction, etc.

Tubi in acciaio per condotte a giuntura diritta per il trasporto di petrolio e gas

Diametro 219 mm~508 mm

Spessore della parete 6 mm ~ 20 mm

API-5L standard

Materiale Gr.B, X42~X100

Applicazione: utilizzato per il trasporto di petrolio e gas naturale.

Vantaggio competitivo:

The company has selected internationally advanced technology and equipment: such as W-FF molding, solid-state high-frequency induction welding, ultrasonic flaw detection, magnetic flux leakage detection, and high-end testing instruments: such as metallographic analysis, Vickers hardness tester, impact testing machine, spectrometer Analyzers, universal testing machines and other equipment. Since its establishment, it has obtained various international certifications and honorary qualifications: such as API 5L, API5CT, ISO9002-2000 pressure pipeline production license, industrial product production license, China Petroleum and Petrochemical Membership Certificate, China Quality Product Certificate, etc. Products are exported to South America, North America, the European Union, Southeast Asia and other places. It has been well received by customers all over the world for many years.