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Q235B Spiral steel pipe

At the core of these pipes’ performance is the Q235B steel grade, a widely recognized and extensively used carbon structural steel known for its balanced combination of strength, ductility, and weldability. Q235B is defined by its mechanical properties, including a yield strength of approximately 235 MPa and a tensile strength ranging from 375 to 500 MPa—attributes that make it ideal for load-bearing applications in foundation engineering. Unlike higher-strength alloys that may sacrifice flexibility for rigidity, Q235B offers sufficient ductility to absorb dynamic loads and ground movements, a crucial feature in pile foundations that must withstand seismic activity, soil settlement, and varying environmental stresses. Its excellent weldability is another key advantage: the spiral welding process, which forms the pipe’s structure, creates strong, homogeneous joints that maintain the steel’s inherent strength, ensuring the pipe can transmit vertical and lateral loads efficiently from the superstructure to the underlying soil or rock.

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Carbon Steel pipe

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Q235B Spiral steel pipe

Product	Spiral steel pipe
Brand Name	YOUFA/Juncheng Pipeline/Zhongzi Brand/Huazi Brand/KINGLAND Brand Huaqi Brand/Shashi Steel Pipe/Maike Pipe Industry /Synda Brand
Application	Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe
Thickness	5~26mm
Standard	API 5L/ ASTM A252/GB/SY/ISO/EN
Certificate	API/ CE/ SASO/PVOC/GS/ ISO9001/ COC/MTC/PED/ISO
Technique	LSAW/SAW/HFW/UT/RT
Grade	GB/T 9711、ISO 3183、SY/T 5037、GB/T 3091、ASTM A252、ASTM A139
Processing Service	Welding, Punching, Cutting, Bending, Decoiling
Oiled or Non-oiled	Slightly Oiled
Invoicing	by theoretical weight
Delivery Time	22-30 days
OD	219mm~3020mm
Length	5-12M
Ends	Beveled end, plain end
Surface finish	bare, oil, black painting, epoxy painting, 3LPE, FEB
Shipment	container or bulk vessel
Payment terms	LC, T/T
Sample	Sample Freely（as requires)

Carbon Steel pipe

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XING RONG firmly believe that quality is paramount. As aprofessional steel pipe manufacturing enterprise, weare equipped with advanced technology andsophisticated production equipment; and providecomprehensiveservicesandsupport,strictlycontrolling every link from raw material procurement,manufacturing,qualitycontrolandexporttransportation, to meet the growing demand in thefield of building structures and fluid transportationaround the world. Always adhere to green andenvironmentally friendly production methods, adhereto the principle of sustainable development,andstrive to create a better world !

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Room 1503, 1st Floor, Ten Billion Dao XING RONG Sales Department, Jinghai District, Tianjin

youfa@cngisteel.com

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