CARBON STEEL PIPE FITTINGS ASTM A234 FLANGE 18''-20''

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 30000 m.t./month

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Specifications

1.we produce seamless steel pipe
2.size:48-219*4.5-45mm
3.ISO 9000 approved
4.Market:south/east Asia,Mid-east,South America

seamless steel pipe

Material J55 K55 N80 L80 P110.etc

Standard ASTM JIS

Usage conveying oil gas ,oil pipe line,pipe material collar,oil nature gas,

Packing wooden cases or wooden pallet ,export standard package

Others:Special design available according to requirement

Anti-corrosion available and high temperature resistence

Delivery time 30days

Payment term T/T L/C

Name		API oil casing pipe
Out Diameter		Wall thickness	Material	Thread	Length
in	mm
5 1/2	139.7mm	6.20	J55/K55/N80	LTC/STC/BTC	R2
		6.98
		7.72
		9.17
		10.54
6 5/8	168.28mm	7.32	J55/K55/N80	LTC/STC/BTC	R2
		8.94
		10.59
		12.06
		12.06
8 5/8	219.08	8.94	H40	S/L/B	9 5/8R2
			J55/K55	S/L/B
		10.6	L80	L/B
		12.7	L80 C95	L/B
		14.15	P110	L/B
9 5/8	244.48	13.84	J55 K55		R2
		15.11	L80	L/B
10 3/4	273.05	11.43	J55 K55	S/B/E	R2
		13.84	P110	S/B
		15.11	P110	S/B
11 3/4	298.45	12.19	J55 K55	S/B	R2
		10.96	J55 K55	S/B
13 3/8	339.72	12.19	J55 K55 L80	S/B	R2
		10.92	J55 K55	S/B
		13.06	L80	S/B

Coupling and thread can be required according to customer requirment

Q:What is the shear strength of steel pipes?: The shear strength of steel pipes can vary based on a variety of factors including the grade and thickness of the steel, as well as the manufacturing process and any additional treatments or coatings applied. Steel pipes generally possess a high shear strength due to the inherent strength of steel as a material. Determination of shear strength is typically achieved through testing and can range from 50,000 to 80,000 pounds per square inch (PSI) for common grades of steel pipes. However, it is important to acknowledge that the shear strength can be considerably higher for specialized or higher-grade steel pipes that are specifically designed for applications such as offshore drilling or high-pressure systems. Therefore, it is advisable to refer to the manufacturer's specifications or engineering standards for precise and specific shear strength values for a particular steel pipe.

Q:What are the different methods of lining steel pipes?: There are several methods of lining steel pipes, including cement lining, epoxy lining, polyethylene lining, and bituminous lining. These methods are used to protect the inside surface of the steel pipes from corrosion, erosion, and other forms of damage, ensuring their longevity and optimal performance.

Q:Galvanized steel pipe DN100 and SC100: Zinc plating, hot dip galvanizing and cold galvanizing, to see the design instructions and design requirements, which will explain

Q:How are steel pipes graded?: The quality and suitability of steel pipes are determined by grading them based on several factors. The grading system typically takes into account parameters such as the chemical composition, mechanical properties, manufacturing method, and testing standards. 1. When it comes to the chemical composition, steel pipes are graded according to the elements present in their composition. This includes the quantities of carbon, manganese, phosphorus, sulfur, and other alloying elements. The pipe's strength, corrosion resistance, and other properties are greatly influenced by its chemical composition. 2. The mechanical properties of steel pipes play a crucial role in determining their strength, flexibility, and resistance to pressure and temperature. These properties encompass tensile strength, yield strength, elongation, hardness, and impact toughness. Pipes with higher mechanical properties are generally given higher grades. 3. The manufacturing method used for steel pipes can vary, with options such as seamless, welded, or ERW (Electric Resistance Welding). The manufacturing method has an impact on the pipe's integrity, dimensional accuracy, and overall quality. For example, seamless pipes are considered to be of higher quality due to their uniformity and lack of weld seams. 4. Steel pipes are graded based on their adherence to specific testing standards. These standards ensure that the pipes meet the required quality criteria and are suitable for their intended applications. Common testing standards include ASTM (American Society for Testing and Materials), API (American Petroleum Institute), and EN (European Norms). Taking these factors into consideration, steel pipes are often assigned alphanumeric codes or specifications for grading. For instance, pipes used in the oil and gas industry may be graded as API 5L (American Petroleum Institute), while pipes used for structural purposes may be graded as ASTM A500 (American Society for Testing and Materials). In conclusion, the grading of steel pipes is determined by their chemical composition, mechanical properties, manufacturing method, and adherence to testing standards. These grades assist customers and manufacturers in selecting the appropriate pipes for specific applications, ensuring safety, durability, and efficiency across various industries.

Q:Can steel pipes be used for roller coaster tracks?: Yes, steel pipes can be used for roller coaster tracks. In fact, they are one of the most common materials used for roller coaster tracks due to their strength, durability, and versatility. Steel pipes provide excellent support and stability for the roller coaster cars, ensuring a safe and thrilling ride experience for passengers. Additionally, steel pipes can be easily shaped and welded to create various track designs, including loops, twists, and turns, making them ideal for creating exhilarating roller coaster layouts. Furthermore, steel pipes are resistant to corrosion and can withstand harsh weather conditions, making them a reliable choice for outdoor roller coasters. Overall, steel pipes are a popular and reliable choice for roller coaster tracks, offering both safety and excitement for riders.

Q:What are the different types of steel pipe fittings?: There are several types of steel pipe fittings, including elbows, tees, couplings, unions, reducers, caps, plugs, and crosses.

Q:Can steel pipes be used for conveying abrasive slurries?: Indeed, abrasive slurries can be effectively conveyed through steel pipes. The remarkable durability and strength of steel pipes render them highly suitable for the transportation of abrasive substances like slurries. Nevertheless, to guarantee prolonged service life and avert excessive deterioration, it is crucial to carefully choose the right grade of steel and take into account factors such as pipe thickness, lining choices, and flow velocity. Furthermore, the implementation of adequate maintenance and inspection protocols can play a pivotal role in promptly identifying and resolving any wear or corrosion issues that may arise with time.

Q:What are the different sizes of threads available for steel pipes?: The different sizes of threads available for steel pipes vary depending on the specific requirements and standards. Common thread sizes for steel pipes include 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4", 5", 6", 8", 10", and 12". However, these sizes may vary based on the specific industry, country, and application.

Q:How do you transport steel pipes safely?: Steel pipes can be transported safely by properly securing them using appropriate restraints, such as straps or chains, to prevent shifting or movement during transit. Additionally, using suitable equipment and vehicles, such as flatbed trucks or trailers, with adequate support and cushioning, can help ensure the safe transportation of steel pipes. Regular inspections of the securing arrangements and adherence to relevant safety regulations are also crucial to maintain the safe transport of steel pipes.

Q:What is the difference between hot-dip galvanizing and electroplating for steel pipes?: Hot-dip galvanizing and electroplating are both methods used to protect steel pipes from corrosion, but they differ in the process and the properties of the resulting coating. Hot-dip galvanizing involves immersing the steel pipe in a bath of molten zinc, which forms a thick and durable coating that bonds metallurgically with the steel. This provides excellent corrosion resistance and protection even in harsh environments. On the other hand, electroplating involves the deposition of a thin layer of zinc onto the steel pipe using an electric current. While electroplating also offers corrosion protection, the coating is typically thinner and less durable than hot-dip galvanizing. Hot-dip galvanizing is typically preferred for steel pipes that require long-lasting protection, while electroplating may be suitable for applications where a thinner coating is sufficient.

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