Stainless Steel Welded Pipe ASTM A312/A358

Stainless Steel Welded Pipe ASTM A312/A358 System 1

Stainless Steel Welded Pipe ASTM A312/A358 System 2

Stainless Steel Welded Pipe ASTM A312/A358

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 35 m.t.

Supply Capability:: 10000 m.t./month

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1、Structure of Stainless Steel Welded Pipe ASTM A358/A312/A316 Description：

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. Stainless steel pipe is resistant to erosion, highly flexible, powerful, easy to use, and can be done in distinct approaches, which means that more and more stainless steel was used as a construction material for large-scale, high impact buildings.

2、Main Features of the Stainless Steel Welded Pipe ASTM A358/A312/A316：

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price

3、Stainless Steel Welded Pipe ASTM A358/A312/A316 Images：

Stainless Steel Welded Pipe ASTM A312/A358

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 are the different types of hangers used for supporting steel pipes?: Supporting steel pipes requires the use of various hangers, each with its own distinctive design and purpose. Some commonly used types include: 1. Clevis Hangers: These hangers consist of a U-shaped loop that attaches to a support structure using a threaded rod. The pipe is then secured in place with a bolt. Clevis hangers are ideal for vertical pipe runs and provide excellent stability and support. 2. Split Ring Hangers: Designed with a split ring that wraps around the pipe, these hangers can be easily installed and adjusted. They are suitable for different pipe sizes and applications. 3. Pipe Clamps: Simple and versatile, pipe clamps consist of a metal clamp that wraps around the pipe and is secured to a support structure using screws or bolts. They come in various designs to accommodate different pipe sizes and ensure stability. 4. Beam Clamps: These hangers are specifically designed for overhead support beams or structures. They feature a clamp that wraps around the beam and attaches to the pipe using a threaded rod or bolt. Beam clamps are commonly used in industrial and commercial settings for horizontal pipe runs. 5. Roller Hangers: When pipe movement is necessary due to thermal expansion or contraction, roller hangers are used. They allow the pipe to move freely while still providing support, making them suitable for long pipe runs or areas with significant temperature variations. 6. Spring Hangers: Designed to support pipes and absorb vibrations or shocks, spring hangers consist of a spring element attached to a support structure and a rod or rod assembly that supports the pipe. They are often used to reduce noise or prevent damage caused by vibrations. These examples represent just a few of the hangers available for supporting steel pipes. The selection of a hanger depends on factors such as pipe size, weight, location, and specific installation requirements. It is recommended to consult with a professional or engineer to ensure the appropriate hangers are chosen for each specific application.

Q: Can steel pipes be used for transporting liquids?: Yes, steel pipes can be used for transporting liquids. Steel pipes are commonly used in various industries, including oil and gas, water supply, and sewage systems, due to their durability, strength, and resistance to corrosion. They are effective for transporting liquids such as water, oil, natural gas, and chemicals over long distances efficiently and safely.

Q: How are steel pipes coated for protection against external elements?: Steel pipes are coated for protection against external elements through various methods, such as hot-dip galvanizing, epoxy coating, or fusion-bonded epoxy coating. These coatings provide a barrier between the steel and the environment, preventing corrosion and extending the lifespan of the pipes.

Q: How do you calculate the bending moment of a steel pipe?: To calculate the bending moment of a steel pipe, you need to consider both the applied load and the structural properties of the pipe. The bending moment is a measure of the internal forces within the pipe caused by the applied load. The bending moment can be calculated using the following equation: Bending Moment = Load x Distance Here, the load represents the external force acting on the pipe, and the distance is the distance from the point where the load is applied to the point where the bending moment is being calculated. In order to accurately calculate the bending moment, you must also consider the properties of the steel pipe. This includes the pipe's cross-sectional area, second moment of area (also known as the moment of inertia), and the modulus of elasticity. The second moment of area reflects the pipe's resistance to bending and can be calculated based on the dimensions of the pipe's cross-section. The modulus of elasticity represents the pipe's stiffness and can be obtained from material properties data. Once you have determined the load, distance, cross-sectional area, moment of inertia, and modulus of elasticity, you can plug these values into the bending moment equation to calculate the bending moment for the steel pipe. It is important to note that the calculation of bending moment assumes linear elastic behavior, which means that the pipe does not exceed its elastic limit and does not undergo plastic deformation. If the pipe is subjected to loads that exceed its capacity, the calculation of bending moment may not accurately represent the actual behavior of the pipe. In such cases, it is advisable to consult with a structural engineer or use more sophisticated analysis methods to accurately assess the bending moment.

Q: What are the common applications of galvanized steel pipes?: Galvanized steel pipes are commonly used in various industries and applications such as plumbing, water supply systems, gas pipelines, electrical conduits, construction projects, fencing, and outdoor structures. The galvanization process adds a protective zinc coating to the steel, making it resistant to corrosion and extending its lifespan, making it ideal for applications requiring durability and longevity.

Q: Can steel pipes be used for conveying abrasive materials?: Yes, steel pipes can be used for conveying abrasive materials. Steel pipes are known for their durability and resistance to wear, making them suitable for handling abrasive materials. Additionally, steel pipes can be lined with various protective coatings or linings to further enhance their resistance to abrasion and extend their lifespan.

Q: How are steel pipes used in the construction of bridges?: Steel pipes are commonly used in the construction of bridges as they provide structural support and stability. They are often used as piers or columns to bear the weight of the bridge deck and transfer the load to the foundation. Additionally, steel pipes are used for the construction of bridge railings and barriers, providing safety for pedestrians and vehicles. Overall, steel pipes offer durability, strength, and flexibility, making them an essential component in bridge construction.

Q: What are the different methods of threading steel pipes?: There are several methods for threading steel pipes, including manual threading using a handheld pipe threader, mechanical threading using a powered threading machine, and hydraulic threading using a hydraulic pipe threader. Additionally, some steel pipes can also be threaded using a die head or a threading lathe.

Q: How are steel pipes used in the manufacturing of food and beverage processing plants?: Steel pipes are commonly used in the manufacturing of food and beverage processing plants due to their durability, cleanliness, and resistance to corrosion. These pipes are utilized for various purposes such as transporting liquids, gases, and ingredients within the plant. They are also essential for the distribution of water, steam, and other fluids required in the production and cleaning processes. Additionally, steel pipes are used for the installation of equipment, such as pumps and valves, ensuring a safe and efficient operation of the plant.

Q: How do you calculate the pipe flow velocity for steel pipes?: To calculate the pipe flow velocity for steel pipes, you can use the Manning's formula or the Darcy-Weisbach equation. 1. Manning's formula: This formula is commonly used for open channel flow but can also be applied to partially filled pipes. It calculates the velocity based on the pipe's hydraulic radius, slope, and Manning's roughness coefficient. The formula is as follows: Velocity (V) = (1.486/n) * (R^2/3) * (S^1/2) Where: - V is the velocity - n is the Manning's roughness coefficient (which can be obtained from reference tables) - R is the hydraulic radius (cross-sectional area divided by wetted perimeter) - S is the slope of the energy grade line 2. Darcy-Weisbach equation: This equation is widely used for pipe flow calculations and is based on the principle of energy conservation. It calculates the velocity based on the pipe's diameter, roughness coefficient, and the head loss due to friction. The formula is as follows: Velocity (V) = (2 * g * hL)^0.5 Where: - V is the velocity - g is the acceleration due to gravity (approximately 9.81 m/s^2) - hL is the head loss due to friction, which can be calculated using the Darcy-Weisbach equation: hL = (f * L * V^2) / (2 * g * D) Where: - f is the Darcy friction factor (which depends on the Reynolds number and pipe roughness) - L is the length of the pipe - D is the diameter of the pipe Both formulas require some input parameters such as pipe dimensions, roughness coefficients, and slope. These parameters can be obtained from engineering references or pipe manufacturer specifications. It is important to note that these formulas provide approximate values and may require iterations or adjustments for accurate results.

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