ASTM A53 API Round Black Painting Seamless API Round Black Painting Seamless Carbon Steel Pipe and Tube China High Quality Seamless Steel Pipe Tube Manufacturer

• After-sales Service: Support
• Warranty: Support
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Model NO.: ASTM A53
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Construction & Decoration, Special Purpose
• Section Shape: Round
• Application: Fluid Pipe, Boiler Pipe
• Length: 5.8m, 6.4m, 6m, 11.8m, 12m, or as Required
• Thickness: 1-120 mm
• Delivery Time: 8-14 Days
• Processing Service: Bending, Welding, Decoiling, Punching, Cutting
• Transport Package: Standard Seaworthy Packing
• Trademark: YF STEEL
• Origin: Tianjin, China
• Production Capacity: 10000 Tons Per Month

Product Description

Carbon Seamless Steel Pipes / Tubes
Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow - liquids and gases (fluids), slurries, powders and masses of small solids.
Hot rolled seamless steel pipe deformation process can be summarized as three stages: extension, perforation and finishing. Hot rolled seamless steel pipes is relative to the cold-rolled, cold rolling is below the recrystallization temperature of the rolling and hot rolled is carried out at above the recrystallization temperature of the rolling. Hot rolled seamless steel pipe can damage the refinement of the crystal grains of the steel, cast microstructure of the steel ingot and eliminate the defects of the microstructure so that the the steel organization compacting, improves the mechanical properties. This improvement is reflected in the rolling direction so that the steel is no longer at a certain extent isotropic; pouring the formation of bubbles, cracks and osteoporosis, under high pressure and temperature can also be welded together.
Hot Rolled Steel Pipes (Seamless Tube) in different size, specifications, grades & thickness as per the client's requirements. The range offered by tubes is available as per the international & national standard and can be available from us at affordable prices. These pipes are used in various application industry like shipbuilding, power plants, oil and gas, automotive, sugar mills and distilleries, cement and construction industries etc.
 

Product Specification

Specifications
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.

Technical data
Chemical Properties %

	Grade	C, max	Mn, max	P, max	S, max	Cu*, max	Ni*, max	Cr*, max	Mo*, max	V*, max
Type S(Seamless)	A	0.25	0.95	0.05	0.05	0.40	0.40	0.40	0.15	0.08
	B	0.30	1.20	0.05	0.05	0.40	0.40	0.40	0.15	0.08
Type E (Electric-resistance Welded)	A	0.25	0.95	0.05	0.05	0.40	0.40	0.40	0.15	0.08
	B	0.30	1.20	0.05	0.05	0.40	0.40	0.40	0.15	0.08
Type F (Furnace-welded)	A	0.30	1.20	0.05	0.05	0.40	0.40	0.40	0.15	0.08

*The total composition for these five elements shall not exceed 1.00%
Mechanical Properties

	Grade A	Grade B
Tensile Strength, min., psi, (MPa)	48,000 (330)	60,000 (415)
Yield Strength, min., psi, (MPa)	30,000 (205)	35,000 (240)

 (Note: This is summarized information from ASME Specification A53. Please refer to the specific Standard or Specification or contact us for more details.)

Standard
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

physical properties	Seamless and Electric-resistance-welded		Continuous-Welded
	Grade A	Grade B
Tensile Strength, min., psi	48000	60000	45000
Yield Strength, min., psi	30000	35000	25000

 
Number of tests required
Seamless and Electric-Resistance-Welded - Bending, flattening, tensile on one length of pipe from each lot of 500 lengths or less of a size. Continuous-Weld - Bending, flattening, tensile

NPS 1 1/2 & smaller	NPS 2 & larger
one / 25 tons	one / 50 tons

 
Hydrostatic testing
Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.
Mechanical tests specified

	Degree of Bend	Diameter of Mandrel
For Normal A53 Uses	90	12 x nom dia. of pipe
For Close Coiling	180	8 x nom dia. of pipe

Tensile Test - Transverse required on ERW for NPS 8 and large. Sending Test (Cold) - STD and XS-NPS 2 and under XXS-NPS 1 1/4 and under.
Flattening Test - NPS 2 and larger STD and XS. (Not required for XXS pipe.)
 
Standard Weight
Single Random - 16′ - 22′. 5% may be jointers. If Plain Ends - 5% may be 12′ - 16′.
Double Random - Shortest Length 22′, minimum average for order 35′.
Extra Strong and Double Extra Strong
Single Random - 12′ -22′. 5% may be 6′ - 12′.
Double Random (XS and lighter) - Shortest Length 22′, minimum average for order 35′.
Lengths longer than single random with wall thicknesses heavier than XS subject to negotiation.
Materials and Manufacture
The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.
 

INCH	OD	ASTM A53 Standard Wall Thickness
	(MM)	SCH 10	SCH 20	SCH 40	SCH 60	SCH 80	SCH 100	SCH 160
		(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)
1/4"	13.7			2.24		3.02
3/8"	17.1			2.31		3.2
1/2"	21.3	2.11		2.77		3.73		4.78
3/4"	26.7	2.11		2.87		3.91		5.56
1"	33.4	2.77		3.38		4.55		6.35
1-1/4"	42.2	2.77		3.56		4.85		6.35
1-1/2"	48.3	2.77		3.68		5.08		7.14
2"	60.3	2.77		3.91		5.54		8.74
2-1/2"	73	3.05		5.16		7.01		9.53
3"	88.9	3.05		5.49		7.62		11.13
3-1/2"	101.6	3.05		5.74		8.08
4"	114.3	3.05	4.50	6.02		8.56		13.49
5"	141.3	3.4		6.55		9.53		15.88
6"	168.3	3.4		7.11		10.97		18.26
8"	219.1	3.76	6.35	8.18	10.31	12.70	15.09	23.01
10"	273	4.19	6.35	9.27	12.7	15.09	18.26	28.58
12"	323.8	4.57	6.35	10.31	14.27	17.48	21.44	33.32
14"	355	6.35	7.92	11.13	15.09	19.05	23.83	36.71
16"	406	6.35	7.92	12.70	16.66	21.44	26.19	40.49
18"	457	6.35	7.92	14.27	19.05	23.83	29.36	46.24
20"	508	6.35	9.53	15.09	20.62	26.19	32.54	50.01
22"	559	6.35	9.53		22.23	28.58	34.93	54.98
24"	610	6.35	9.53	17.48	24.61	30.96	38.89	59.54
26"	660	7.92	12.7

 

Product Display

We can produce different sizes, thicknesses, widths and materials according to your requirements

Product Test

We will control the quality from part of material steel pipe, each pipe produced will be have it is own identify label, quality will check the chemical component and physical property and then provide material test certificate. Size dimension will be checked and show pictures to customer to guarantee all goods will be meet requirement.

Accept inspection from a third party designated/paid by the buyer, such as SGS, BV.
Recognized by customers in Malaysia, Indonesia, Singapore, the Philippines, Australia, Peru and the United Kingdom. We have ISO9001/18001, CE certificates.

About Us

Our company is a steel supplier from China, located in Tianjin City, one of the largest steel producers in China. The company integrates the manufacturing, wholesale, material processing and warehousing of stainless steel, aluminum, copper and carbon steel materials, and has established long-term and stable cooperative relations with many well-known steel plants, such as Tisco, Baosteel, Hongwang, Zhangpu, Liangzhong and Jiugang.

Mainly products cover carbon steel tubes, stainless steel tubes, galvanized steel coil, ppgi steel coil, stainless steel coil, carbon steel coil and carbon steel profiles, gi wire, hollow anchor bar, section steel, steel rebar etc. Our company is equipped with plasma cutting machine, coil flattening equipment, laser cutting machine, 8K mirror, frosted wire drawing, filming and titanium plating equipment, which can flatten, split, shear, oil mill wire drawing, and roll oil film wire drawing on stainless steel materials, 8K mirror, titanium and other processing.

In addition, the company's characteristic business: zero-cutting, rounding, square cutting, special-shaped cutting, castings, forgings, product thicknesses up to 150mm, various special materials and specifications can be customized to steel mills.

Companies adhering to the "efficient, win-win" business philosophy, continue to provide customers with professional, quality products and value-added services, continuous progress and learning to meet customer needs. Now the company has entered the period of rapid development of global trade, looking forward to more cooperation.

Marketing  Campaign

Packaging and Transportation

1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.
2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.
3) Trade terms: FOB/CIF/CFR
4) Shipping port: Qingdao/Tianjin/Shanghai
5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm); Size of 40GP Container (inside:12032*2352*2393mm); Size of 40HQ Container (inside:12032*2352*2698mm).
6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size:15-30days custom made for you.

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.