Overburden Ring Bit for Concentric Casing System

To reach a mutual profit of our customers, suppliers, the society and ourselves for Solid Rigid Centralizer, Stainless Steel Wedge Wire Screen, Drill Pipe Screen. We have perfect talent reserves, and reliable quality assurance to meet the needs of different levels. Technological progress has promoted the vitality and prosperity of the industry, which can stimulate more talents and creativity. We are looking forward to forming successful business relationships with you in near future.

Product introduction

Product Name	Spiral Welded Steel Pipe
Size	OD	89-3020mm
	Thickness	2.75-25mm
	Length	Usually 6~12 Meters, 20 Meters Max in theory
Standard	SY/T5037 SY/T5040 GB/T9711 API5L EN10208 ASTM A252 JISA5525
Material	Chinese Grade	Q235,Q345,S245,S290,S320,S360,S390,S415,S450
	Foreign Grade	ASTM	Grade A, Grade B, X42,X46,X52,X56,X60,X65,X70
		EN	S185,S235JR,S235JO,E335,S355JR,S355JO,L245, L290,L320,L360,L390,L415,L450
Ends	Beveled(Can be Protected By Plastic Caps or Steel Rings According to Your Requirements) Also We Can Weld Flanges on the Pipe Ends Plain Ends
Surface	Bared Or Paint With Oil, Bitumen, 1-3 layer PE
Inspection	With Chemical Composition and Mechanical Properties Testing;Hydrostatic Test, Dimensional and Visual Inspection;Also With Nondestructive Inspection
Technique	Hot Rolled and SSAW or DSAW

Mechanical Property

Yield Strength Grade	Wall thickness (mm)	Yield strength (Mpa)	Tensile strength (Mpa)	Elongation%	Impact work (J)
235	4-12﹥12-22	≥235	≥375	≥23	≥27
345	4-12﹥12-22	≥345	≥470	≥21	27
390	4-12﹥12-22	≥390	≥490	≥19	≥27

Package
1.OD≤273MM, package with steel strip
2.OD≥273MM, package in bulk

Usage
1.Water
2.Sewage
3.Gas
4.Stream
5.Combustible Fluids(Petroleum and Gas)

Our Overburden Ring Bit for Concentric Casing System not only incorporates the necessary core technology, but also reflects the innovation and outstanding performance as always. After years of continuous innovation and efforts, our factory has achieved rapid development. We have established a strategic and honest operation and a win-win cooperation relationship with manufacturers, which has continuously deepened our brand awareness and reputation.

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