Stainless Steel Welded Pipe ASTM A358/A316

Stainless Steel Welded Pipe ASTM A358/A316 System 1

Stainless Steel Welded Pipe ASTM A358/A316

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1、Structure of /Stainless Steel Welded Pipe ASTM A358/A312Description：

Stainless steel welded pipe is actually a cover term, covering a wide range of alloy and making them suitable for different attributes that are used in a very wide and large numbers of different industries.

2、Main Features of the Stainless Steel Welded Pipe ASTM A358/A312：

• High manufacturing accuracy

• High strength

• Small inertia resistance

3、Stainless Steel Welded Pipe ASTM A358/A312Images：

Stainless Steel Welded Pipe ASTM A358/A316

4、Stainless Steel Welded Pipe ASTM A358/A312/A778 Specification：

Size：

Outside diameter		Outside	Thickness
Outside diameter		Outside	SCH 5S	SCH 10S	SCH 20S	SCH 40S
(A)	(B)	mm	mm	mm	mm	mm
350	14′	355.6	3.96	4.78	7.92	11.13
400	16′	406.4	4.19	4.78	7.92	12.7
450	18′	457.2	4.19	4.78	7.92	14.27
500	20′	508	4.78	5.54	9.53	15.09
550	22′	558.8	4.78	5.54	9.53	15.09
600	24′	609.6	5.54	6.35	9.53	17.48
650	26′	660.4	5.54	7.92	12.7	17.48
700	28′	711.2	5.54	7.92	12.7	17.48
750	30′	762	6.35	7.92	12.7	17.48
800	32′	812.8		7.9	12.7	17.48
850	34	863.6		7.92	12.7	17.48
900	36′	914.4		7.92	12.7	19.05
1000	40′	1016		9.53

Tolerances on dimensions table：

Standard	Outside(mm)		Thickness(mm)	Length(mm)
ASTM A312	≤48.26	-0.4	+No special provisions(Unspecified)-12.50%	Appoint LengthDefinite cut length+6.40
	＞48.26~114.30	0		0
	＞114.30~219.08	0.8
	＞219.08~457.20	1.6
	＞457~660	-4
	＞660~864	-5
	＞864~1219	-5.6
JIS G3459	＜30.00 ±0.30≥30.00 ±1.00%		＜2.00 ±0.20≥2.00 ±10%	Appoint LengthDefinite cut Length
GB/T 12771	＜13.00 ±0.2013.00~40.00 ±0.30≥40.00 ±0.80%		≤4.00 +0.50 -0.60＞4.00 ±10%	20
EN 10217-7	D1±1.50% with±0.75mm(min)D2±1.00% with±0.50mm(min)D3±0.75% with±0.30mm(min)		T1±15.00% with±0.60mm(min)T2±12.5% with±0.40mm(min)T3±10.00% with±0.20mm(min)	≤6000 +5.00 -06000~12000 +10.00 -0
	D4±0.5% with±0.10mm(min)		T4±7.50% with±0.15mm(min)
			T5±5.00% with±0.10mm(min)
			EN ISO 1127

5、FAQ of Stainless Steel Welded Pipe ASTM A358/A312/A778：

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !

Q: What does GALV mean in a steel tube?: GALV is the abbreviation of English galvanized (Galvanized), which means galvanized steel pipe.

Q: How are steel pipes used in LNG terminals?: Steel pipes are used in LNG terminals for various purposes, including the transportation and storage of liquefied natural gas. These pipes are responsible for conveying the LNG from the storage tanks to the regasification units, where it is converted back into its gaseous state for distribution. Steel pipes are preferred for this application due to their strength, durability, and ability to withstand extreme temperatures and pressures. Additionally, these pipes are used for the safe transfer of other fluids and gases within the LNG terminal infrastructure.

Q: What are the different shapes available for steel pipes?: There are several different shapes available for steel pipes, including round, square, rectangular, and oval shapes.

Q: A333gr6 steel pipe and domestic material of the same?: The SA333 standard in ASME (cryogenic seamless and welded nominal steel tubes), so A333-6 is a representation of the United States, followed by many countries.

Q: What are the different methods of inspecting steel pipes?: There are several methods for inspecting steel pipes, including visual inspection, ultrasonic testing, magnetic particle inspection, radiographic testing, and eddy current testing.

Q: What are the uses of welded steel pipes?: The spiral submerged arc welded pipe (SY5036-83) for the delivery of pressurized fluid is made of hot rolled steel strips for tube billets, often spirally formed, welded by double submerged arc welding and used for the transmission of pressurized fluid. The steel pipe has strong pressure bearing ability and good welding performance. After a rigorous scientific examination and test, it can be used safely. The utility model has the advantages of large caliber of the steel pipe, high transmission efficiency, and investment in laying pipelines. Mainly used in the transportation of petroleum and natural gas pipelines.

Q: What is the difference between steel pipes and concrete pipes?: Steel pipes and concrete pipes differ in terms of their material composition and physical characteristics. Steel pipes are made from steel alloys, which make them strong, durable, and resistant to corrosion. They have high tensile strength, allowing them to withstand high-pressure applications. Steel pipes are commonly used in industries such as oil and gas, plumbing, and construction. On the other hand, concrete pipes are made from a mixture of cement, aggregates, and water. They are known for their exceptional compressive strength and durability. Concrete pipes are commonly used in sewage systems, drainage systems, and culverts. In terms of installation, steel pipes are lightweight and easy to handle, making them more convenient to transport and install. Concrete pipes, on the other hand, are heavier and require specialized equipment for installation. Additionally, steel pipes have a smooth internal surface, which allows for efficient flow of fluids or gases. Concrete pipes, however, have a rougher internal surface, which may cause more friction and result in reduced flow rates. Overall, the choice between steel pipes and concrete pipes depends on the specific requirements of the project, including factors such as application, budget, and durability needs.

Q: Can steel pipes be used for heat exchangers?: Yes, steel pipes can be used for heat exchangers. Steel pipes are often preferred for heat exchangers due to their high thermal conductivity, durability, and resistance to corrosion. They are commonly used in various industries including power generation, chemical processing, and HVAC systems.

Q: How seamless steel tube is formed?: Seamless steel tubes are formed by cold drawing and hot rolling.

Q: What are the factors to consider while selecting steel pipes for a project?: When choosing steel pipes for a project, there are several key factors to take into account. These factors encompass the material composition of the steel, the dimensions of the pipes, the intended use, the environmental conditions, and the allocated budget. Firstly, the material composition of the steel pipes plays a vital role in determining their strength, resistance to corrosion, and overall durability. Carbon steel, stainless steel, and alloy steel are commonly used types of steel for pipes, each possessing unique characteristics suitable for different applications. Secondly, the dimensions of the pipes, including diameter and wall thickness, should be carefully considered. It is crucial to ensure that these dimensions align with the project requirements and the system in which the pipes will be installed. This ensures that the selected pipes can effectively handle the required flow rates and pressures. Thirdly, thorough assessment of the intended application of the steel pipes is necessary. Different projects may demand pipes with specific features, such as heat resistance, pressure resistance, or the ability to transport particular substances like gas, oil, or water. Understanding these application requirements aids in selecting the appropriate type of steel pipes. Evaluation of the environmental conditions in which the pipes will be installed is also important. Factors such as temperature fluctuations, exposure to moisture, corrosive substances, and external pressures must be taken into account. For example, if the project involves underground installation or exposure to corrosive chemicals, corrosion-resistant steel pipes may be necessary. Lastly, the allocated budget for the project is a significant consideration. The cost of steel pipes can vary depending on their material composition, dimensions, and additional features. Striking a balance between project requirements and available budget ensures cost-effectiveness without compromising the quality and performance of the pipes. In conclusion, the selection of steel pipes for a project necessitates careful consideration of factors including material composition, pipe dimensions, intended application, environmental conditions, and budget. By thoroughly evaluating these factors, one can choose the most suitable steel pipes that meet project requirements, ensuring long-term performance and durability.

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