Q235 20# ERW/LASW geschweißtes Rohr für Wasser/Gas/Öl

Herkunftsort:	Shandong, China
Markenname:	Changshengda (CSD)
Modellnummer:	Q195/Q235/Q345 SS400
Zertifizierung:	API, CE, GS, ISO9001
Mindestbestellmenge:	20 Tonnen
Preis:	545USD/TON-680USD/TON
Verpackungsdetails:	1.Standard-Marineverpackung
	2. Entsprechend den Kundenanforderungen
Hafen:	Shanghai-, Tianjin- und Qingdao-Häfen. Sie können je nach Bedarf andere Häfen angeben.
Lieferzeit:	8-14days
Zahlungsbedingungen:	L / C, T / T
Versorgungsmaterial-Fähigkeit:	100000 Tonnen / Monat
Material:	ERW:Q235, Q345, 20#, J55, X42~65 usw.
	LASW:Q195,Q235,Q345B,X42,X52,X60,S355JRH,S355J0H,S355J2H etc

Beschreibung:

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.

Je nach Formungsverfahren kann es unterteilt werden 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.

Technische Daten:

ERW-ROHR
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
Kohlenstoffstahl	ASTM A671, ASTM A672
Legierter Stahl	ASTM A691
OD	1/2" -24" (21.3mm-610mm)
WT	1.65mm-20mm
Anwendungs-	Leitungsrohre ; OCTG (Oil Country Tubular Goods); runde Strukturrohre; Beschichtungsrohr.

LSAW-ROHR
Standard	ASTM 53; API Spec 5L; ASTM A252-89; EN10217, EN10219
Stahlsorten	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
Anwendungs-	Wird für Öl/Gas/Wasser, Getriebe, Ingenieurwesen und Offshore-Projekte verwendet.
Anwendungsbereich	OD (mm)	WT (mm)	LÄNGE (m)
Rollenrohr	1200–3800 (47.24–150 Zoll)	12-120 (1/2”- 4.7”)	<= 3.2
für den Bau (Rohrpfähle)	350–1600 (14–63 Zoll)	6-60 (1/4” -2.36”)	6 12
Öl- und Gaspipeline	406–1524 (16–60 Zoll)	6-40 (1/4”-1.57”)	8 12.1
Zusätzlich zu den oben genannten Spezifikationen können die Rohre gemäß den Anforderungen des Kunden hergestellt werden.

Schnelles Detail:

Beschreibung:

Flüssigkeitstransport unter niedrigem Druck für Stahlrohre mit gerader Naht

Durchmesser: 219mm ~ 508mm

Wandstärke: 6 mm ~ 20 mm

Standard: GB / T 3091-2008

Material: L245~L690, Q235 usw.

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.

Gerade nahtgeschweißtes Stahlrohr nach amerikanischem Standard

Durchmesser: 219mm ~ 406mm

Wandstärke: 6 mm ~ 14 mm

Standard: ASTM

Material: GrA GrB

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

Gerade Nahtstahlrohre für Ölgehäuse und Ölleitungen

Durchmesser 219mm~508mm

Wandstärke 6 mm ~ 20 mm

Standard-API-5CT

Material H40, J55, N80, P110

Anwendung: Ölgehäuse und -schläuche.

Spiralgeschweißtes Stahlrohr nach amerikanischem Standard

Durchmesser 219mm~3520mm

Wandstärke 5 mm ~ 26 mm

Standard-ASTM

Material 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.

Gerade Naht-Pipeline-Stahlrohre für den Öl- und Gastransport

Durchmesser 219mm~508mm

Wandstärke 6 mm ~ 20 mm

Standard-API-5L

Materialgr.B, X42~X100

Anwendung: Wird für den Öl- und Erdgastransport verwendet.

Wettbewerbsvorteil:

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.