Introduction

piral steel pipe from the raw material into the workshop must after spiral steel pipe, spiral steel pipe before molding forming, spiral steel pipe in the whole production line all equipment finally combined into spiral steel pipe quality checks can be made, after double quality inspections department department and processing slightly, can be put into the market or network market sales. Spiral steel pipe adopts advanced double-sided submerged arc welding process, can be in the best position for welding, it is not easy to appear the wrong side and defects such as lack of penetration, welding, welding quality easy to control and position. Spiral steel pipe of the use of special welding process, welding can be in the best position for welding, no any mistakes, can ensure the eligibility of spiral steel pipe, to obtain the very good quality assurance. 

Spiral steel pipe forming process, the steel plate to uniform deformation, residual stress, surface not to produce scratches, so making spiral steel pipe, steel plate selection carefully surface to even don't have a scratch. Processing spiral steel pipe on the scope of the size of diameter and wall thickness is more flexibility, especially in the production of high grade thick wall tube, especially small and medium caliber thick wall tube, has incomparable advantage over other techniques, can meet the requirements of users in the aspect of spiral steel pipe specifications more. Spiral steel pipe diameter and the size range to flexible, has great advantages, using their own set of more extensive user demand, popularization and promotion is the spiral steel pipe can be.

Parameter

Product Name	ASTM A252 Gr. 3/S355jr Big Size SSAW/LSAW MS Steel Pipe/Tubular Pile with Galvanized/3PE Coating for Piling Construction
Size	1) OD: 406mm-1560mm
	2)Wall Thickness: 7mm-40mm
	3) SCH20,SCH40,STD,XS,SCH80,SCH160,XXS
Length	Up to 75m
Usage	Piling,marine construction, offshore platform, low-pressure liquid delivery, such as water, gas, and oil.
Standard	API 5L PSL1/ PSL2 , ASTM A252, EN10219, AWWA C200, ASTM A53, BS, JIS, etc...
ASTM A 53	Gr. A, Gr B, Gr C, Gr.D
API 5L	A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711	L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
ASTM A252	Gr.1 Gr.2 Gr.3
EN 10219	S235JR, S275JR, S355JR, S355JOH, S355J2, S420...
Ends:	1) Bared 2) Black Painted (varnish coating) 3) galvanized 4) Oiled 5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating.
Technique:	1. Single Submerged Arc Welded (LSAW) 2. Double Submerged Arc Welded (DSAW) 3. T-JOINT
Inspection:	With Hydraulic Testing, Eddy Current , inspection by 3rd party.
Delivery:	Container, Bulk Vessel.

Why Us
1. More than 20 years experience.
2. R&D strength.
3. Provide OEM and ODM services.
4. Assist material (Standard, Steel Grade) selection and metallurgical properties of our products.
5. Assist inspection and interpretation of specifications to Classification Society.
6. Assure products to meet requirement.

7. Minimize logistics of dealing with large shipments.

8. Investigate problems when they occur.