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ភាសាខ្មែរTo make hydraulic cast steel pipes, we need to do the following steps:
- Choose cast steel as raw material. Carbon steel, alloy steel or stainless steel can be used.
- Cut cast steel into blocks and melt in a furnace.
- Pour molten steel into the mold to cast continuous steel pipes.
- Hot rolling steel pipes to the required thickness and accuracy.
- Polish the steel pipe surface to remove the oxide layer.
- Cut and machine the pipe end to tightly fit the system.
- Check the quality of hydraulic cast steel pipes according to customer standards.
Hydraulic cast steel pipes – Concepts and definitions
Hydraulics is a technology that uses fluids such as oil or water to drive, control, and dampen industrial machinery and equipment systems. Hydraulic cast pipes are commonly used to contain hydraulic fluid and transmit pressure in the system.
Hydraulic cast steel pipes are manufactured from cast steel and have the following characteristics:
- Has high durability and hardness
- Pressure resistance ability
- High temperature resistance
- Good corrosion resistance
It comes in different diameters and thicknesses to suit system requirements. Hydraulic-cast pipes are often galvanized to prevent corrosion and prolong the life of the pipe.
To ensure the quality and safety of the system. Hydraulic-molded pipes must comply with technical standards and quality certifications.
It must also be selected in accordance with technical requirements and the usage environment. To ensure efficiency and safety for the system and its users.
In short, hydraulic cast steel pipe is a type of steel pipe that can withstand very good pressure, withstand harsh environments, have high durability, and have good corrosion resistance. This is one of the options for hydraulic systems. Bao Tin Steel supplies hydraulic cast steel pipes to standard ASTM A53/A106/API 5L, A312,….
=> You may be interested in: What type of heat-resistant seamless steel pipe is it?
Technical specifications of hydraulically cast steel pipes
- Origin: 100% imported, imported mainly from China, Korea, Japan,…
- Pipe material: hardened pressure-resistant cast steel
- Pipe length: 6m to 12m (also cut according to customer requirements)
- Pressure resistance: up to 700 bar
Bao Tin Steel Company Limited is a reputable importer and distributor of cast steel pipes with good quality and competitive prices compared to the market. Currently, the company is distributing the following products:
- Seamless (cast) steel pipes according to ASTM A53, A106, and API 5L standards.
- Welding accessories
- Threaded accessories
- Flange
- Fire protection materials
- Large steel pipes
- I, U, V, and H-shaped steel
- Steel plates,….
Below is the table of specifications for cast steel pipes:
| PIPES SIZE | THICKNESS AND WEIGHT OF SEAMLESS STEEL PIPE | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN (A) -mm- |
NPS -mm- |
OD -mm- |
SCH 5S |
SCH 5 |
SCH 10S |
SCH 10 |
SCH 20 |
SCH 30 |
STD – SCH 40S |
SCH 40 |
SCH 60 |
XS – SCH 80S |
SCH 80 |
SCH 100 |
SCH 120 |
SCH 140 |
SCH 160 |
XXS |
| 6 | 1/8 | 10,3 | – | – | – | – | – | – | 1,73 | 1,73 | – | 2,41 | 2,41 | – | – | – | – | – |
| – | – | – | – | – | – | 0,37 | 0,37 | – | 0,47 | 0,47 | – | – | – | – | – | |||
| 8 | 1/4 | 13,7 | – | – | – | – | – | – | 2,24 | 2,24 | – | 3,02 | 3,02 | – | – | – | – | – |
| – | – | – | – | – | – | 0,63 | 0,63 | – | 0,80 | 0,80 | – | – | – | – | – | |||
| 10 | 3/8 | 17,1 | – | – | – | – | – | – | 2,31 | 2,31 | – | 3,20 | 3,20 | – | – | – | – | – |
| – | – | – | – | – | – | 0,84 | 0,84 | – | 1,10 | 1,10 | – | – | – | – | – | |||
| 15 | 1/2 | 21,3 | 1,65 | 1,65 | 2,11 | 2,11 | – | 2,41 | 2,77 | 2,77 | – | 3,73 | 3,73 | – | – | – | 4,78 | 7,47 |
| 0,80 | 0,80 | 1,00 | 1,00 | – | 1,12 | 1,27 | 1,27 | – | 1,62 | 1,62 | – | – | – | 1,95 | 2,55 | |||
| 20 | 3/4 | 26,7 | 1,65 | 1,65 | 2,11 | 2,11 | – | 2,41 | 2,87 | 2,87 | – | 3,91 | 3,91 | – | – | – | 5,56 | 7,82 |
| 1,02 | 1,02 | 1,28 | 1,28 | – | 1,44 | 1,69 | 1,69 | – | 2,20 | 2,20 | – | – | – | 2,90 | 3,64 | |||
| 25 | 1 | 33,4 | 1,65 | 1,65 | 2,77 | 2,77 | – | 2,90 | 3,38 | 3,38 | – | 4,55 | 4,55 | – | – | – | 6,35 | 9,09 |
| 1,29 | 1,29 | 2,09 | 2,09 | – | 2,18 | 2,50 | 2,50 | – | 3,24 | 3,24 | – | – | – | 4,24 | 5,45 | |||
| 32 | 1.1/4 | 42,2 | 1,65 | 1,65 | 2,77 | 2,77 | – | 2,97 | 3,56 | 3,56 | – | 4,85 | 4,85 | – | – | – | 6,35 | 9,70 |
| 1,65 | 1,65 | 2,69 | 2,69 | – | 2,87 | 3,39 | 3,39 | – | 4,47 | 4,47 | – | – | – | 5,61 | 7,77 | |||
| 40 | 1.1/2 | 48,3 | 1,65 | 1,65 | 2,77 | 2,77 | – | 3,18 | 3,68 | 3,68 | – | 5,08 | 5,08 | – | – | – | 7,14 | 10,15 |
| 1,90 | 1,90 | 3,11 | 3,11 | – | 3,54 | 4,05 | 4,05 | – | 5,41 | 5,41 | – | – | – | 7,25 | 9,55 | |||
| 50 | 2 | 60,3 | 1,65 | 1,65 | 2,77 | 2,77 | – | 3,18 | 3,91 | 3,91 | – | 5,54 | 5,54 | – | – | – | 8,74 | 11,07 |
| 2,39 | 2,39 | 3,93 | 3,93 | – | 4,48 | 5,44 | 5,44 | – | 7,48 | 7,48 | – | – | – | 11,11 | 13,44 | |||
| 65 | 2.1/2 | 73,0 | 2,11 | 2,11 | 3,05 | 3,05 | – | 4,78 | 5,16 | 5,16 | – | 7,01 | 7,01 | – | – | – | 9,53 | 14,02 |
| 3,69 | 3,69 | 5,26 | 5,26 | – | 8,04 | 8,63 | 8,63 | – | 11,41 | 11,41 | – | – | – | 14,92 | 20,39 | |||
| 80 | 3 | 88,9 | 2,11 | 2,11 | 3,05 | 3,05 | – | 4,78 | 5,49 | 5,49 | – | 7,62 | 7,62 | – | – | – | 11,13 | 15,25 |
| 4,52 | 4,52 | 6,46 | 6,46 | – | 9,92 | 11,29 | 11,29 | – | 15,27 | 15,27 | – | – | – | 21,35 | 27,70 | |||
| 90 | 3.1/2 | 101,6 | 2,11 | 2,11 | 3,05 | 3,05 | – | 4,78 | 5,74 | 5,74 | – | 8,08 | 8,08 | – | – | – | – | – |
| 5,18 | 5,18 | 7,41 | 7,41 | – | 11,41 | 13,57 | 13,57 | – | 18,64 | 18,64 | – | – | – | – | – | |||
| 100 | 4 | 114,3 | 2,11 | 2,11 | 3,05 | 3,05 | – | 4,78 | 6,02 | 6,02 | – | 8,56 | 8,56 | – | 11,13 | – | 13,49 | 17,12 |
| 5,84 | 5,84 | 8,37 | 8,37 | – | 12,91 | 16,08 | 16,08 | – | 22,32 | 22,32 | – | 28,32 | – | 33,54 | 41,03 | |||
| 125 | 5 | 141,6 | 2,77 | 2,77 | 3,40 | 3,40 | – | – | 6,55 | 6,55 | – | 9,53 | 9,53 | – | 12,70 | – | 15,88 | 19,05 |
| 9,48 | 9,48 | 11,59 | 11,59 | – | – | 21,82 | 21,82 | – | 31,04 | 31,04 | – | 40,37 | – | 49,24 | 57,57 | |||
| 150 | 6 | 168,3 | 2,77 | 2,77 | 3,40 | 3,40 | – | – | 7,11 | 7,11 | – | 10,97 | 10,97 | – | 14,27 | – | 18,26 | 21,95 |
| 11,31 | 11,31 | 13,83 | 13,83 | – | – | 28,26 | 28,26 | – | 42,56 | 42,56 | – | 54,21 | – | 67,57 | 79,22 | |||
| 200 | 8 | 219,1 | 2,77 | 2,77 | 3,76 | 3,76 | 6,35 | 7,04 | 8,18 | 8,18 | 10,31 | 12,70 | 12,70 | 15,09 | 18,26 | 20,62 | 23,01 | 22,23 |
| 14,78 | 14,78 | 19,97 | 19,97 | 33,32 | 36,82 | 42,55 | 42,55 | 53,09 | 64,64 | 64,64 | 75,92 | 90,44 | 100,93 | 111,27 | 107,93 | |||
| 250 | 10 | 273,0 | 3,40 | 3,40 | 4,19 | 4,19 | 6,35 | 7,80 | 9,27 | 9,27 | 12,70 | 12,70 | 15,09 | 18,26 | 21,44 | 25,40 | 28,58 | 25,40 |
| 22,61 | 22,61 | 27,78 | 27,78 | 41,76 | 51,01 | 60,29 | 60,29 | 81,53 | 81,53 | 95,98 | 114,71 | 133,01 | 155,10 | 172,27 | 155,10 | |||
| 300 | 12 | 323,8 | 3,96 | 4,19 | 4,57 | 4,57 | 6,35 | 8,38 | 9,53 | 10,31 | 14,27 | 12,70 | 17,48 | 21,44 | 25,40 | 28,58 | 33,32 | 25,40 |
| 31,24 | 33,03 | 35,98 | 35,98 | 49,71 | 65,19 | 73,86 | 79,71 | 108,93 | 97,44 | 132,05 | 159,87 | 186,92 | 208,08 | 238,69 | 186,92 | |||
| 350 | 14 | 355,6 | 3,96 | – | 4,78 | 6,35 | 7,92 | 9,53 | 9,53 | 11,13 | 15,09 | 12,70 | 19,05 | 23,83 | 27,79 | 31,75 | 35,71 | – |
| 34,34 | – | 41,36 | 54,69 | 67,91 | 81,33 | 81,33 | 94,55 | 126,72 | 107,40 | 158,11 | 194,98 | 224,66 | 253,58 | 281,72 | – | |||
| 400 | 16 | 406,4 | 4,19 | – | 4,78 | 6,35 | 7,92 | 9,53 | 9,53 | 12,70 | 16,66 | 12,70 | 21,44 | 26,19 | 30,96 | 36,53 | 40,19 | – |
| 41,56 | – | 47,34 | 62,65 | 77,83 | 93,27 | 93,27 | 123,31 | 160,13 | 123,31 | 203,54 | 245,57 | 286,66 | 333,21 | 362,97 | – | |||
| 450 | 18 | 457,2 | 4,19 | – | 4,78 | 6,35 | 7,92 | 11,13 | 9,53 | 14,27 | 19,05 | 12,70 | 23,83 | 39,36 | 34,93 | 39,67 | 45,24 | – |
| 46,81 | – | 53,33 | 70,60 | 87,75 | 122,44 | 105,21 | 155,88 | 205,84 | 139,22 | 254,68 | 405,59 | 363,75 | 408,48 | 459,62 | – | |||
| 500 | 20 | 508,0 | 4,78 | – | 5,54 | 6,35 | 9,53 | 12,70 | 9,53 | 15,09 | 20,62 | 12,70 | 26,19 | 32,54 | 38,10 | 44,45 | 50,01 | – |
| 59,32 | – | 68,65 | 78,56 | 117,15 | 155,13 | 117,15 | 183,43 | 247,84 | 155,13 | 311,19 | 381,55 | 441,52 | 508,15 | 564,85 | – | |||
| 550 | 22 | 558,8 | 4,78 | – | 5,54 | 6,35 | 9,53 | 12,70 | 9,53 | 15,09 | 22,23 | 12,70 | 28,58 | 34,93 | 41,28 | 47,63 | 53,98 | – |
| 65,31 | – | 75,59 | 86,51 | 129,09 | 171,04 | 129,09 | 202,34 | 294,16 | 171,04 | 373,71 | 451,28 | 526,85 | 600,43 | 672,03 | – | |||
| 600 | 24 | 609,6 | 5,54 | – | 6,35 | 6,35 | 9,53 | 14,27 | 9,53 | 17,48 | 24,61 | 12,70 | 30,96 | 38,89 | 46,02 | 52,37 | 59,54 | – |
| 82,53 | – | 94,47 | 94,47 | 141,03 | 209,51 | 141,03 | 255,25 | 355,04 | 186,95 | 441,80 | 547,36 | 639,62 | 719,68 | 807,68 | – | |||
| 650 | 26 | 660,7 | – | – | – | 7,92 | 12,70 | – | 9,53 | – | – | 12,70 | – | – | – | – | – | – |
| – | – | – | 127,50 | 202,95 | – | 153,04 | – | – | 202,95 | – | – | – | – | – | – | |||
| 700 | 28 | 711,2 | – | – | – | 7,92 | 12,70 | 15,88 | 9,53 | – | – | 12,70 | – | – | – | – | – | – |
| – | – | – | 137,36 | 218,77 | 272,30 | 164,91 | – | – | 218,77 | – | – | – | – | – | – | |||
| 750 | 30 | 762,0 | 6,35 | – | 7,92 | 7,92 | 12,70 | 15,88 | 9,53 | – | – | 12,70 | – | – | – | – | – | – |
| 118,34 | – | 147,29 | 147,29 | 234,68 | 292,20 | 176,85 | – | – | 234,68 | – | – | – | – | – | – | |||
| 800 | 32 | 812,8 | – | – | – | 7,92 | 12,70 | 15,88 | 9,53 | 17,48 | – | 12,70 | – | – | – | – | – | – |
| – | – | – | 157,21 | 250,59 | 312,09 | 188,79 | 342,85 | – | 250,59 | – | – | – | – | – | – | |||
| 850 | 34 | 863,6 | – | – | – | 7,92 | 12,70 | 15,88 | 9,53 | 17,48 | – | 12,70 | – | – | – | – | – | – |
| – | – | – | 167,13 | 266,50 | 331,99 | 200,73 | 364,75 | – | 266,50 | – | – | – | – | – | – | |||
| 900 | 36 | 914,4 | – | – | – | 7,92 | 12,70 | 15,88 | 9,53 | 19,05 | – | 12,70 | – | – | – | – | – | – |
| – | – | – | 177,05 | 282,41 | 351,88 | 212,67 | 420,64 | – | 282,41 | – | – | – | – | – | – | |||
=> See more: Weight – Specifications of seamless (cast) steel pipes
Note: This data table is for reference only. If customers need advice or an order, please contact us using the information below:
In the article on types of seamless steel pipes, Bao Tin Steel mentioned hydraulically seamless steel pipes, but only briefly. So in this article, Bao Tin will go deeper into hydraulic steel pipes. Please continue to follow for more details.
Types of hydraulic seamless steel pipes
There are two main types of hydraulic seamless steel pipe which are galvanized hydraulic seamless pipe and hydraulic black seamless pipe.
Galvanized hydraulic seamless pipes:
- Galvanized hydraulic cast steel pipes are coated with a layer of zinc plating on the surface to increase durability and prevent corrosion.
- The zinc coating also helps increase the gloss and smoothness of the pipe surface, increasing aesthetics.
Hydraulic black cast pipe:
- Hydraulic black seamless steel pipes are manufactured from black steel (not galvanized).
- Often used in applications that do not require high aesthetics or do not have to work in corrosive environments.
Both types of pipes have high strength and hardness, can withstand high pressure and temperature, and are resistant to corrosion and seawater corrosion. However, galvanized hydraulic pipes have better durability and longevity due to being coated with a galvanized layer to protect the surface.
The choice between galvanized and non-galvanized hydraulic cast steel pipes depends on the technical requirements and the usage environment. If the application requires high aesthetics or operates in corrosive environments, galvanized hydraulic casting pipes should be used. If you do not require high aesthetics or do not have to work in a corrosive environment, non-galvanized hydraulic casting pipes may be a suitable choice.
Characteristics of pressure cast steel pipes
Hydraulic-cast steel pipe is a type of steel pipe designed for use in hydraulic transmission systems. And to meet work efficiency, they need to meet the following criteria:
- High durability and hardness. Hydraulic cast pipes are made from cast steel, have high durability and hardness, and can withstand high pressure and temperature.
- High pressure resistance. Hydraulic cast pipes are used to transmit pressure in hydraulic systems. Therefore, it is able to withstand high pressure.
- High temperature resistance. Hydraulic-cast pipes are capable of withstanding high temperatures. Therefore, it is used in industrial applications with high temperature requirements.
- Corrosion resistance. Hydraulic-cast pipes have good resistance to corrosion and seawater corrosion.
- High gloss and smooth surface. Hydraulic-cast pipes are manufactured with high precision. Therefore, its surface is very smooth and glossy, which helps reduce friction and increase system accuracy.
- Easy to install and transport. Hydraulic cast pipes are light in size and weight, making them easy to install and transport.
Application of pressure cast steel pipes
Hydraulic-cast steel pipes are an important part of hydraulic transmission systems. With a wide range of applications across industries, including construction, manufacturing, and the oil and gas industry.
Here are some main applications of hydraulically cast pipes:
- Hydraulic drive system. Hydraulic cast pipes are used to transmit hydraulic pressure in hydraulic transmission systems. Including applications in industrial machinery, construction machinery, agricultural equipment, and other fields.
- Compressed air. Hydraulic-cast pipes are also used to convey compressed air. Includes applications in industrial machinery and construction equipment.
- Build bridges and buildings. Includes applications in structural construction, roof framing, and water supply and discharge systems.
- Oil and gas pipeline system. Hydraulic cast pipes are also used to carry oil and gas from wells to processing and storage facilities.
- Other applications. Hydraulic cast steel pipes are also used in other applications such as manufacturing and molding, drainage systems, wastewater treatment systems, gas pipelines, and piping systems in industrial plants.
Production techniques for hydraulically cast steel pipes
Production process
The production process of hydraulic cast steel pipes includes the following steps:
- Choose cast steel as the raw material. Carbon steel, alloy steel, or stainless steel can be used.
- Cut cast steel into blocks and melt in a furnace.
- Pour molten steel into the mold to cast continuous steel pipes.
- Hot-rolling steel pipes to the required thickness and accuracy.
- Polish the steel pipe surface to remove the oxide layer.
- Cut and machine the pipe end to fit tightly into the system.
- Check the quality of hydraulic-cast steel pipes according to customer standards.
=> See more: Cast and welded pipes production process
This process ensures that the hydraulic-cast steel pipe meets the customer’s demanding requirements. However, during the production process, there will always be unexpected situations that arise.
These arising factors will more or less affect the quality of the finished product.
Factors affecting the quality of hydraulically cast steel pipes
Factors affecting the quality of hydraulic-cast steel pipes include:
1. Ingredient: The quality of raw materials will directly affect the quality of hydraulically cast pipes. Raw materials must meet quality standards and mechanical properties such as:
- Toughness
- Tensile
- Flexural strength
- Stiffness
- Stamping durability
- Corrosion resistance
- Heat resistance, etc.
2. Production process. The manufacturing process, including casting, hot rolling, deburring, and machining steps, also affects the quality of the product. If the production process is unbalanced or not done properly, Cast steel pipes will likely be defective, peeled, deformed, or cracked.
3. Equipment for production. Production equipment also affects the quality of the product. Equipment must be properly maintained and operated. To ensure the production of high-quality hydraulic cast pipes.
4. Production environment. Production environment, including temperature, humidity, and other factors. Can also affect the production process or reduce product durability.
5. Check quality. The quality inspection process must be performed completely and accurately to detect and fix errors quickly.
To produce high-quality hydraulic-cast steel pipes, these factors must be fully and accurately guaranteed and controlled.
Standards and certification for pressure-cast steel pipes
Important standards and certifications for hydraulic cast steel pipes include:
- Quality standards. Seamless steel pipe standards include ASTM A106, ASTM A53, etc. These standards specify the requirements for the mechanical, chemical, and dimensional properties of steel pipes.
- ISO certification. ISO 9001:2015 certification ensures that they meet quality management standards. And ensure that products are of high quality and meet customer requirements.
- CE certification. This certification ensures that the product meets safety standards. And environmental protection is regulated by the European Union.
- PED (Pressure Equipment Directive) certification. This is an important certification for hydraulic-molded pipe manufacturers. This certification ensures that the product meets the safety standards set by the EU.
- API certification (American Petroleum Institute). This is also an important certification for hydraulic-cast steel pipe manufacturers. This certification ensures that the product meets the mechanical and dimensional property standards specified by the API.
These certifications ensure that products meet the quality and safety requirements set forth by reputable organizations and standards.
Evaluation and selection of hydraulic cast steel pipes
Evaluating and selecting hydraulic-cast steel pipe is an important process. To ensure that the product meets customer requirements and is safe to use. Here are some important factors to consider:
- Quality. The quality of hydraulically cast pipes is the most important factor to consider. Quality standards have been specified, and products must meet these standards. Quality standards include the mechanical, chemical, and dimensional properties of hydraulically cast pipes.
- Size. The size of the hydraulic casting pipe must meet the customer’s requirements. Dimensions include the outer diameter, inner diameter, thickness, and length of the tube.
- Application. Customers must determine the intended use of the product. To ensure that the product meets the application requirements.
- Delivery time. Customers need to ensure that the product will be delivered on time as committed.
- Price. Customers need to determine their budget. To find products with suitable prices and meet customer requirements.
Evaluating and selecting hydraulic cast pipe is an important process that must consider many different factors. Customers need to ensure that the product meets quality standards and requirements.
So where can I buy quality and reputable hydraulic steel pipes?
One of the places to buy reputable and quality hydraulic steel pipes is Bao Tin Steel, the leading supplier of imported hydraulic steel pipes in Vietnam, with many years of experience and a professional business team.
Bao Tin Steel offers different types of hydraulic steel pipes, suitable for a variety of applications and customer requirements.
Please contact Bao Tin Steel today for advice and the best hydraulic steel pipe quote.
Hotline: 0932 059 176 – 0932 059 176
Conclude
Hopefully through this article, you have a clear understanding of hydraulic cast steel pipe products. If you need to order, please contact Bao Tin Steel !