Various types of stainless steel pipe waiting for you

Various types of stainless steel pipe waiting for you

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 8000 m.t./month

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Product Description:

1、Structure of Stainless Steel Welded Pipe ASTM A358/A312/A778 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. It can be molded, rolling, and it can create amazing shapes to make it perfect, It is used as experimental buildings, The use of steel pipe welding of large stainless steel covers other examples.

2、Main Features of the Stainless Steel Welded Pipe ASTM A358/A312/A778：

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price

3、Stainless Steel Welded Pipe ASTM A358/A312/A778 Images：

Stainless Steel Welded Pipe ASTM A358/A312/A778

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′	508.0	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′	762.0	6.35	7.92	12.7	17.48
800	32′	812.8		7.90	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′	1016.0		9.53

Tolerances on dimensions table：

Standard	Outside(mm)		Thickness(mm)	Length(mm)
ASTM A312	≤48.26	+0.40 -0.80	+No special provisions(Unspecified)-12.50%	Appoint LengthDefinite cut length+6.40 -0
	＞48.26~114.30	+0.80 -0.80
	＞114.30~219.08	+1.60 -0.80
	＞219.08~457.20	+2.40 -0.80
	＞457~660	+3.20/-0.80
	＞660~864	+4.00/-0.80
	＞864~1219	+4.48/-0.80
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%	+20.00-0
EN 10217-7	D1±1.50% with±0.75mm(min)D2±1.00% with±0.50mm(min)D3±0.75% with±0.30mm(min) D4±0.5% with±0.10mm(min)		T1±15.00% with±0.60mm(min)T2±12.5% with±0.40mm(min)T3±10.00% with±0.20mm(min) T4±7.50% with±0.15mm(min) T5±5.00% with±0.10mm(min) EN ISO 1127	≤6000 +5.00 -06000~12000 +10.00 -0

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.

②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why 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: Can stainless steel pipes be used for dairy industries?: Yes, stainless steel pipes can be used for dairy industries. Stainless steel is a highly durable and corrosion-resistant material, making it suitable for the sanitary requirements of the dairy industry. It is widely used in the production, processing, and transportation of milk and other dairy products due to its hygienic properties and ease of cleaning.

Q: Can stainless steel pipes be used for underground sewer lines?: Certainly! Stainless steel pipes are suitable for underground sewer lines. Due to its remarkable durability and resistance to corrosion, stainless steel is an optimal material selection for harsh environments, including underground sewer systems. It offers exceptional protection against chemicals, moisture, and other corrosive elements frequently encountered in sewer lines. Moreover, stainless steel pipes boast an extended lifespan and necessitate minimal upkeep, proving to be an economical choice over time. Nevertheless, it is crucial to account for the particular specifications and regulations of the local sewer system before opting for stainless steel pipes in underground applications.

Q: How thick is the 3 stainless steel tube?: Refers to the stainless steel tube with a wall thickness of 3 mm.

Q: How do you insulate stainless steel pipes?: Insulating stainless steel pipes is a crucial step to prevent heat loss, condensation, and energy wastage. There are several methods to effectively insulate stainless steel pipes: 1. Pipe insulation wraps: This is the most common and cost-effective method. Pipe insulation wraps are available in various materials such as fiberglass, rubber, or foam. These wraps are easy to install and provide excellent insulation against heat transfer. They also act as a barrier to prevent condensation. 2. Insulation jackets: These are pre-formed covers made of insulation material like mineral wool or fiberglass. Insulation jackets are designed to fit around the stainless steel pipes and are secured with adhesive or straps. They provide a high level of thermal insulation and are ideal for pipes located in areas with extreme temperatures. 3. Spray foam insulation: This method involves spraying a layer of polyurethane foam insulation directly onto the stainless steel pipes. This creates a seamless and durable insulation layer that adheres well to the pipes, providing excellent thermal insulation and preventing moisture buildup. 4. Insulation tape: Insulation tape, typically made of foam or rubber, is wrapped around the stainless steel pipes to provide thermal insulation. This method is best suited for smaller pipes or areas where space is limited. Regardless of the method chosen, it is important to consider the temperature range, moisture exposure, and specific requirements of the stainless steel pipes when selecting insulation materials. Additionally, ensuring proper installation and maintenance of the insulation is essential to optimize its effectiveness and durability.

Q: Are stainless steel pipes suitable for offshore platforms?: Yes, stainless steel pipes are suitable for offshore platforms. They possess excellent corrosion resistance properties, which is crucial in marine environments where exposure to saltwater and harsh conditions is common. Stainless steel pipes can withstand the corrosive effects of seawater, ensuring the integrity and longevity of the offshore platforms' infrastructure. Additionally, their strength and durability make them suitable for handling high-pressure and high-temperature applications, making them a reliable choice for offshore platforms.

Q: Can stainless steel pipes be used for solar water heating systems?: Yes, stainless steel pipes can be used for solar water heating systems. Stainless steel is a preferred material for solar water heating systems due to its excellent corrosion resistance and durability, making it suitable for withstanding the high temperatures and harsh environmental conditions associated with solar water heating applications.

Q: Can stainless steel pipes be used for chemical storage tanks?: Yes, stainless steel pipes can be used for chemical storage tanks. Stainless steel is highly resistant to corrosion and can withstand the harsh chemicals found in many industrial processes. Additionally, stainless steel pipes are durable, easy to clean, and have a long lifespan, making them a suitable choice for chemical storage applications.

Q: What is the density of stainless steel pipes?: Depending on the specific grade of stainless steel, the density of stainless steel pipes may differ. Nevertheless, stainless steel pipes typically have a density range of 7.9 to 8.0 grams per cubic centimeter (g/cm³). Compared to other materials, this density is relatively high, which enhances the strength and durability of stainless steel pipes.

Q: How do you calculate the flow rate of stainless steel pipes?: To calculate the flow rate of stainless steel pipes, you can use the Hazen-Williams equation or the Darcy-Weisbach equation. The Hazen-Williams equation is commonly used for water flow in commercial and industrial applications, while the Darcy-Weisbach equation is more general and can be used for various fluids. For the Hazen-Williams equation, the flow rate (Q) can be calculated using the formula: Q = 0.849 * C * (D^2.63) * (h^0.54) Where: Q = Flow rate in gallons per minute (GPM) C = Hazen-Williams coefficient (an empirical value that depends on the pipe material and condition) D = Inside diameter of the pipe in inches h = Head loss or pressure drop in feet For the Darcy-Weisbach equation, the flow rate (Q) can be calculated using the formula: Q = (π/4) * (D^2) * V Where: Q = Flow rate in cubic meters per second (m³/s) D = Inside diameter of the pipe in meters V = Velocity of the fluid in meters per second (m/s) To determine the velocity (V), you can use the formula: V = Q / ((π/4) * (D^2)) These equations provide a theoretical estimation of the flow rate in stainless steel pipes. However, it is important to note that other factors such as pipe roughness, fluid viscosity, and system pressure can also affect the flow rate. Therefore, it is recommended to consult relevant engineering standards, industry guidelines, or work with a qualified engineer for accurate calculations.

Q: How are stainless steel pipes different from carbon steel pipes?: Stainless steel pipes and carbon steel pipes exhibit various dissimilarities encompassing their composition, corrosion resistance, and cost. To begin with, the composition of stainless steel pipes encompasses a notable amount of chromium, which imparts them with their distinctive corrosion resistance. Conversely, carbon steel pipes primarily consist of iron and carbon, devoid of any significant alloying elements. This divergence in composition endows stainless steel pipes with enhanced resistance against corrosion, oxidation, and the formation of rust when exposed to diverse environmental conditions or fluids. Additionally, stainless steel pipes possess exceptional strength and durability attributed to their alloying elements, such as nickel and molybdenum, which augment their mechanical properties. In contrast, carbon steel pipes, while sturdy, do not possess the same level of strength and durability as stainless steel pipes. Furthermore, stainless steel pipes exhibit high resistance to heat, rendering them suitable for applications involving elevated temperatures or extreme heat conditions. On the other hand, carbon steel pipes, albeit having satisfactory heat resistance, may not be as effective as stainless steel pipes in such applications. Lastly, the cost aspect plays a notable role in distinguishing stainless steel pipes from carbon steel pipes. Generally, stainless steel pipes are more costly than carbon steel pipes due to the elevated production expenses associated with their alloying elements and corrosion-resistant properties. In summary, stainless steel pipes diverge from carbon steel pipes in terms of their composition, corrosion resistance, strength, heat resistance, and cost. Stainless steel pipes offer superior corrosion resistance, heightened strength, and improved heat resistance, rendering them ideal for applications in corrosive environments or high-temperature conditions. However, they come at a higher cost compared to carbon steel pipes, which continue to be widely used in various industries due to their affordability and moderate mechanical properties.

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