GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe

Model NO.
Q235B/Q345B
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry
Section Shape
Round
Oiled or Non-Oiled
Slightly Oiled
Surface
3PE Coating Fbe
Delivery Time
8-14 Days
Certificate
ISO9001
Grade
Q235, Q345, S235jr, St37-2, API 5L
Processing Service
Bending, Welding, Decoiling, Punching, Cutting
Standard
GB/T700, GB/T1591, En 10025, DIN 17100, API 5L
Transport Package
Standard Seaworthy Packing
Trademark
YF STEEL
Origin
Tianjin, China
Production Capacity
10000 Tons Per Month
Reference Price
$ 450.00 - 531.00
Contact Us

Product Description

Product Introduction

Welded pipe is an electric welded round pipe that is an alternative to steel pipes.It is a structural grade tube that is suitable for a wide variety of applications where dimensional accuracy and precision tolerances is not a primary concern.A raised weld seam is present inside the pipe.
Spiral welded steel pipe is a kind of practical steel pipe, now it has been widely used in small and medium-sized construction site construction facilities, not only that, spiral steel pipe is often used in mining, power, construction and various pipeline systems, one of the important industries.
On the basis of the original is trying to research this more excellent quality of new spiral steel pipe, the purpose is to spiral steel pipe for everybody to create greater profits for pressure fluid transmission with spiral seam submerged arc welding steel pipe.Spiral welded pipe industry investment risk and prospect consulting analysis report released by China industry research network shows that spiral welded pipe is widely used in the fields of tap water engineering, petrochemical industry, hydropower station, power industry, agricultural irrigation and rural construction.Spiral steel pipe is widely used in agriculture, chemical industry, construction, water conservancy, petrochemical industry.
Key Specifications/ Special Features:
1)Spiral welded pipe is the low carbon carbon structural steel and low alloy steel strip according to certain Angle of helix Angle (called molding) rolled into a tube billet, then pipe seam welding made up, it can use a narrow strip in the production of large diameter steel pipe.* wall thickness, according to its specifications with diameter welded pipe shall ensure that the water pressure test, the tensile strength and cold bending properties of the weld in accordance with regulations.
2)Commonly used standards of the spiral steel pipe can be divided into: SY/T5037-2000 (solid, also known as the common fluid conveying pipe with spiral seam submerged arc welding steel pipe), GB/T9711.1-1997 (national standard, also known as oil and gas industry conveying pipe delivery technical conditions in the first part: grade A steel pipe (GB/T9711.2 strict grade B steel pipe)), API 5 L  (American petroleum institute, also known as the pipeline steel pipe; which can be divided into PSL1 and PSL2 two levels), SY/T5040-92 (pile with spiral seam submerged arc welding steel pipe).
 

Product Specification

Description Spiral  W elded  S teel  P ipe, Straight S eam W elded S teel P ipe, Carbon  S teel  T ube, ERW  S teel  T ube, EFW  S teel  P ipe
Standards API 5L ERW PSL1/PSL2, EN39, BS1139, BS1387, EN10255,
ASTM A53, A500, A36, A795, ANSI C80, DIN2440, JIS G3444, GB/T3091, GB/T13793
Certificate API 5L ERW PSL1/PSL2, API 5CT, CE, ISO
Material Q195, Q215, Q235, Q275, Q295, Q345, S275, S355, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8
ASTM A53: Gr.A, Gr.B, Gr.C, Gr.D
API 5L: Gr.A, Gr.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
Type Spiral, ERW (Electrical Resistance Weld), EFW (Electric Fusion Welding)
Outside Diameter 6mm-2500mm
(1/8 inch, 1/4 inch, 1/2 inch, 3/4 inch, 1inch, 1 1/4 inch, 1 1/2 inch, 2inch, 2 1/2 inch, 3inch, 3 1/2 inch, 4inch, 5 inch, 6inch, 8 inch, 10 inch, 12inch, 14inch, 16 inch, 18 inch, 20 inch, 22 inch, 24 inch, 26inch, 28 inch, 30 inch, 32 inch, 34 inch, 36 inch, 38 inch, 40 inch, 42 inch, 44 inch, 46 inch, 48 inch)
Thickness 1mm~220mm
(SCH5 ,SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,
SCH80,SCH100,SCH120,SCH140,SCH160, XXS)
Length 6m-12m,or as required 
Outside Coating Anti-rust oil, black painting.
Epoxy Coating according to AWWA C-210
Bitumen Coating according to DIN30672, BS534
Coal- Tar Enamel Coating according to AWWA C-203
3 Layer polyethylene Coating according to DIN30670
3 Layer Polypropylene Coating according to DIN30678
Inside Coating Epoxy lining according to AWWA C-210
Bitumen Lining according to DIN30673, BS534
Coal-Tar Enamel Lining according to AWWA C-203
Cement Mortar Lining according to AWWA C-205, BS534
Testing and Inspection Reports EN 10204 3.1, Mill TC EN 10204 3.1, Third Party Inspection Reports, Visual Inspection Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Chemical and Mechanical Reports, NABL Approved Lab
Price Term EX-Work, FOB, CFR, CIF
Package Wooden box, bundled for export standard or as required 
Payment Term T/T, L/C,
Delivery Time 25-45 days (based on quantity) after receiving advanced payment
Application a) General service industries (petroleum, food, chemical,
 paper, fertilizer, fabric, aviation and nuclear)
b) Fluid, gas and oil transport
c) Pressure and heat transmission
d) Construction and ornament
e) Boiler heat exchangers

Chemical Composition and Mechanical Properties
Standard Grade Chemical Composition   (max)% Mechanical Properties   (min)
C   (Max.) Mn (Max.) Si   (Max.) S (Max. P (Max.) Yield Strength(Mpa) Tensile Strength(Mpa)
GB/T700-2006 Q235A 0.22 1.40 0.35 0.050 0.045 235 370
Q235B 0.20 1.40 0.35 0.045 0.045 235 370
Q235C 0.17 1.40 0.35 0.040 0.040 235 370
Q235D 0.17 1.40 0.35 0.035 0.035 235 370
GB/T1591-2009 Q345A 0.20 1.70 0.50 0.035 0.035 345 470
Q345B 0.20 1.70 0.50 0.030 0.030 345 470
Q345C 0.20 1.70 0.50 0.030 0.030 345 470
BS E N 10025 S235JR 0.17 1.40 - 0.035 0.035 235 360
S275JR 0.21 1.50 - 0.035 0.035 275 410
S355JR 0.24 1.60 - 0.035 0.035 355 470
DIN 17100 ST37-2 0.20 - - 0.050 0.050 225 340
ST44-2 0.21 - - 0.050 0.050 265 410
ST52-3 0.20 1.60 0.55 0.040 0.040 345 490
JIS G3101 SS400 - - - 0.050 0.050 235 400
SS490 - - - 0.050 0.050 275 490
API 5L PSL1 A 0.22 0.90 - 0.030 0.030 210 335
B 0.26 1.20 - 0.030 0.030 245 415
X42 0.26 1.30 - 0.030 0.030 290 415
X46 0.26 1.40 - 0.030 0.030 320 435
X52 0.26 1.40 - 0.030 0.030 360 460
X56 0.26 1.10 - 0.030 0.030 390 490
X60 0.26 1.40 - 0.030 0.030 415 520
X65 0.26 1.45 - 0.030 0.030 450 535
X70 0.26 1.65 - 0.030 0.030 585 570
API 5L PSL 2 B 0.22 1.20 - 0.025 0.015 245-450 415-760
X42 0.22 1.30 - 0.025 0.015 290-495 415-760
X46 0.22 1.40 - 0.025 0.015 3 20 -52 5 43 5 - 760
X52 0.22 1.40 - 0.025 0.015 360-530 460-760
X56 0.22 1.40 - 0.025 0.015 390-545 490-760
X60 0.22 1.40 - 0.025 0.015 415-565 520-760
X65 0.22 1.45 - 0.025 0.015 450-600 535-760
X70 0.22 1.65 - 0.025 0.015 483-621 565-758


Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A53 (ASME SA53) carbon steel pipe is a specification that covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8″ to NPS 26.  A 53 is intended for pressure and mechanical applications and is also acceptable for ordinary uses in steam, water, gas, and air lines.
A53 pipe comes in three types (F, E, S) and two grades (A, B).
A53 Type F is manufactured with a furnace butt weld or may have a continuous weld (Grade A only)
A53 Type E has an electric resistance weld (Grades A and B)
A53 Type S is a seamless pipe and found in Grades A and B)
A53 Grade B Seamless is our most polar product under this specification and A53 pipe is commonly dual certified to A106 B Seamless pipe .
ASTM A53 Grade B Pipe Chemical Properties %
  Type S(seamless) Type E(electric-resistance welded) Type F(furnace-welded pipe)
  Grade A Grade B Grade A Grade B Grade A
Carbon max. % 0.25 0.30 0.25 0.30 0.30
Manganese % 0.95 1.20 0.95 1.20 1.20
Phosphorous, max. % 0.05 0.05 0.05 0.05 0.05
Sulfur, max. % 0.045 0.045 0.045 0.045 0.045
Copper, max. % 0.40 0.40 0.40 0.40 0.40
Nickel, max. % 0.40 0.40 0.40 0.40 0.40
Chromium, max. % 0.40 0.40 0.40 0.40 0.40
Molybdenum, max. % 0.15 0.15 0.15 0.15 0.15
Vanadium, max. % 0.08 0.08 0.08 0.08 0.08
Permissible Variations in Outside Diameter
Outside Diameter at any point shall not vary from standard specified more than:
For NPS 1 1/2 and Smaller Sizes For NPS 2 and Larger Sizes
1/64 ″ 1/32 ″ under 1% over 1% under
Tensile Requirements
  Seamless and Electric-resistance-welded Continuous-welded
  Grade A Grade B  
Tensile Strength , min., psi 48,000 60,000 45,000
Yield Strength , min., psi 30,000 35,000 25,000


Butt-welded pipe is formed by feeding a hot steel plate through shapers that will roll it into a hollow circular shape. Forcibly squeezing the two ends of the plate together will produce a fused joint or seam.
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe Least common of the three methods is spiral-welded pipe. Spiral-welded pipe is formed by twisting strips of metal into a spiral shape, similar to a barber's pole, then welding where the edges join one another to form a seam. This type of pipe is restricted to piping systems using low pressures due to its thin walls.
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe Each of the three methods for producing pipe has its advantages and disadvantages. Butt-welded pipe, for example, is formed from rolled plate that has a more uniform wall thickness and can be inspected for defects prior to forming and welding. This manufacturing method is particularly useful when thin walls and long lengths are needed. Because of the welded seam, however, there is always the possibility of defects that escape the numerous quality control checks performed during the manufacturing process.

As a result, the American National Standards Institute (ANSI) developed strict guidelines for the manufacture of pipe. Pressure Piping Code B31 was written to govern the manufacture of pipe. In particular, code B31.1.0 assigns a strength factor of 85% for rolled pipe, 60% for spiral-welded pipe, and 100% efficiency for seamless pipe.

Generally, wider wall thicknesses are produced by the seamless method. However, for the many low-pressure uses of pipe, the continuous welded method is the most economical. Seamless pipe is produced in single and double random lengths. Single random lengths vary from 16′-0″ to 20′-0″. Pipes 2″ and below are found in double random lengths measuring from 35′-0″ to 40′-0″.
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe

Product and Factory Display

We can produce different sizes, thicknesses, widths and materials according to your requirements
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe
Anti-corrosion processing
Our manufacturing facilities, perform three types of welding processes: ERW, LSAW, HSAW and   Anti - corrosion. The facilities are fully equipped with the world's utmost advanced full auto production lines and lab test equipment which allows us to provide the quality of our product.

3LPE steel pipe blasting&coating equipment can make water gas oil supplied pipeline dia. (32-3000mm),according to customers demand. The production line make internal and external shot blasting derusting,Dual Fusion Bonded Epoxy powder/liquide Coating & PE/PP film Wrapping ,End of PE grooving system and so on.
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe
Hydrostatic test
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe

Application Scope

Carbon welded steel pipe has high strength, which makes them ideally suitable for pressure applications within the oil & gas, petrochemical, chemical, water supply, energy, sewage treatment, vanitation pipe, pulp & paper industries, etc.
GB/T 3091 Q235B/Q345b Welded Carbon Steel Pipes Piling Tube for Construction SSAW Steel Pipe

Why Choose Us

01.Customized service
Different types of product as you choose,Logo print for client's special request   for ensuring your quality.
02.Advanced equipment
More production lines, using the most advanced equipment in China, a plant area of 5,000 square meters.
03.High-quality base steel
We choose high-quality raw materials. Our base steel comes from Baosteel, Shougang, etc., and our coating materials come from Nippon, Aksu and other well-known international brands.
04.Output
Products with a monthly output of about 5000-10000 tons, and have sufficient inventory.
05.Quality inspection
The implementation of strict quality inspection standards, products comply with ISO, SGS international standards, to ensure 100% compliance with customer requirements.
06.Price   advantage
Advanced production management process, from production to delivery, efficient and fast.The most important is our competitive price, enquiry us for more details~
 

Packaging and Transportation

We offer different modes of transport depending on the customer's destination: rail transport and ship transport,etc.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards,Specifications, Package No., Contract No., Heat No., Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.

FAQ

Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7 : Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q13:How to pack the products?
A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.
Q14:What is your working time?
A:In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day.

 

Steel Pipe & Tube

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