EN 10297-1 Seamless steel tubes for mechanical and general engineering purposes
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EN 10297-1 Seamless steel tubes for mechanical and general engineering purposes
Still deciding? Get samples first, Contact US !
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Product Description
Steel tubes according to EN 10297-1 are non-alloy and alloy seamless steel tubes for mechanical and general engineering purposes, which can be bent, crimped and similarly shaped, and are also suitable for welding operations. Steel pipe carbon steel material grade (chemical composition) E235, E275, E315, E355, C35E, C45E, etc., using hot forming or cold drawing process manufacturing.
Product Size
Outer diameter: 21.3～610mm
Wall thickness: 2.77～70.00mm
End: Flat end
Length: 3 to 12 meters or SRL, DRL, double-footed and fixed-footedProduct Packaging
External surfaces oiled or varnished/black lacquered and strapped with steel straps.
Chemical composition
C
Mn
P
S
Si
Cr
Cu
Mo
Ni
Nb
V
Alt
Cr+Mo+Ni
≤，%
E235
0.17
1.20
0.030
0.035
0.35
E275
0.21
1.40
0.030
0.035
0.35
E315
0.21
1.50
0.030
0.035
0.30
E355
0.22
1.60
0.030
0.035
0.55
E470
0.16-0.22 1.30-1.70
0.030
0.035
0.50
0.07
0.08-0.15
≥0.010
C22E
0.17-0.24 0.40-0.70
0.035
0.035
0.40
0.40
0.10
0.40
0.63
C35E
0.32-0.39
0.50-0.80
0.035
0.035
0.40
0.40
0.10
0.40
0.63
C45E
0.42-0.50
0.50-0.80
0.035
0.035
0.40
0.40
0.10
0.40
0.63
C60E
0.57-0.65
0.60-0.90
0.035
0.035
0.40
0.40
0.10
0.40
0.63
Product Mechanical Properties
Delivery status
Tensile strength ≥, MPa
Yield strength ≥, MPa
Elongation after break ≥, %
Wall thickness≤16mm
16＜Wall thickness≤40mm
40＜Wall thickness≤65mm
65＜Wall thickness≤80mm
Wall thickness≤16mm
16＜Wall thickness≤40mm
40＜Wall thickness≤65mm
65＜Wall thickness≤80mm
Vertical
Horizontal
E235
Rolled or normalized
360
360
360
340
235
225
215
205
25
23
E275
410
410
410
380
275
265
255
245
22
20
E315
450
450
450
420
315
305
295
280
21
19
E355
490
490
490
470
355
345
335
315
20
18
E470
Rolled
650
600
470
430
17
15
C22E
normalized
240
210
210
210
430
410
410
410
product standard
C35E
300
270
270
270
550
520
520
520
C45E
340
305
305
305
620
580
580
580
C60E
390
350
340
340
710
670
670
670
Wall thickness≤8mm
8＜Wall thickness≤20mm
20＜Wall thickness≤50mm
50＜Wall thickness≤80mm
Wall thickness≤8mm
8＜Wall thickness≤20mm
20＜Wall thickness≤50mm
50＜Wall thickness≤80mm
Vertical
Horizontal
C22E
Hardening + Tempering
500
470
440
420
340
290
270
260
product standard
C35E
630
600
550
500
430
380
320
290
C45E
700
650
630
600
490
430
370
340
C60E
850
800
750
710
580
520
450
420
Delivery status
20℃ impact absorption work ≥, J
Wall thickness≤8mm
8＜Wall thickness≤20mm
20＜Wall thickness≤60mm
60＜Wall thickness≤100mm
Vertical
Horizontal
Vertical
Horizontal
Vertical
Horizontal
Vertical
Horizontal
C22E
Hardening + Tempering
50
50
32
40
27
40
27
C35E
35
35
22
35
22
35
22
C45E
25
25
14
25
14
25
14
Application
Typically used for mechanical component manufacturing and general engineering use.
Production And Processes
We have two pipe product manufacturing bases in Yantai, Shandong Province. One of them, the General Pipe Manufacturing Base, has a history of nearly 70 years and is equipped with five hot-rolling production lines and one cold-drawing production line, with an annual production capacity of up to 500.000 tons. Leveraging our mature production processes and economies of scale, our product range encompasses over 1.000 specifications of pipe products, fully compliant with international standards such as API 5L, ASTM A106. and ASTM A333. While ensuring quality, we also offer a leading price advantage.
Our high-standard pipeline product production base has a stable production capacity of 800.000 tons, primarily producing high-grade steel products such as API 5L X100 PSL2. API 5CT Super 13Cr, and ASTM A335 P91. Our product specifications cover a wide range, with a maximum outer diameter of 20 inches, a wall thickness of up to 70 millimeters, and a single-piece length of up to 36 meters, capable of meeting the demands of steel pipes in various harsh operating conditions.
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Inventory And Quality Inspection
We operate under the YANTAIPIPE brand and have established solid partnerships with a number of outstanding manufacturers of steel pipes, pipe fittings, flanges, and valves. We operate three large warehouses and processing plants in Yantai and Cangzhou ensuring a minimum inventory capacity of over 35.000 tons. We not only provide products but also offer comprehensive services such as project packaging, corrosion-resistant coatings, advanced processing, and customized solutions. Through our mature supply chain system and resource integration capabilities, we create added value for our customers from all angles, enabling us to maintain a core competitive advantage in the international market!
Customer Feedback
Qualification
Customer visit
Shipping Packaging
International Cooperation
Our products have been widely used in major energy projects around the world. We provide services to international energy giants, including China National Petroleum Corporation, Sinopec, Shell, Total, as well as national oil companies from Kuwait, Azerbaijan, Abu Dhabi, Qatar, Algeria, and Saudi Arabia. This has allowed us to accumulate extensive experience in serving international projects.
Main Projects
We are deeply involved in major global energy projects, including the Clean Fuel Project of Kuwait National Petroleum Company (KNPC), the North Field East (NFE) LNG Project in Qatar, the multiphase flow processing station project in Hassi Messaoud, Algeria, and the modernization project of SOCAR Haor for the State Oil Company of Azerbaijan (SOCAR). We provide our clients with comprehensive solutions that cover procurement, processing, quality inspection, delivery, and after-sales service.
FAQs
Do you require a minimum order quantity(MOQ)?
We have no minimum order quantity requirements. Even if you only need one steel pipe or one pipe fitting, we can deliver on time and provide comprehensive services. Please note that certain high-grade steel products may require temporary production scheduling, which may result in minimum order quantity requirements. For specific details, please consult our sales team.
Do you offer product samples?
Of course, we provide free samples for products priced below $1,000. You only need to cover the shipping costs. For products priced above $1,000, please contact our sales team to discuss specific fees.
How long is your shipping cycle?
For products that are in stock, we will complete the final processing, quality inspection, packaging, and other steps within two weeks and deliver them as soon as possible according to the shipping schedule. For products that need to be ordered for production, an additional 2-3 weeks of production time will be required depending on the quantity requested.
Do you offer additional quality assurance?
In addition to providing factory warranty certificates, we can also provide test reports from internationally recognized quality testing agencies such as SGS, TUV, and DNV upon customer request. We are also available to assist third-party testing agencies with process inspections and final inspections prior to shipment.
Is it possible to visit your factory?
Of course! Whether it's our own factory, processing plant, or our partners' factories, we welcome you to visit and exchange ideas at any time. If you need our assistance with visa matters, please feel free to contact our sales manager.
Are you a supplier or a manufacturer?
We are both a supplier and a manufacturer. We have three processing plants and warehouses, as well as a seamless steel pipe factory. We also collaborate closely with other outstanding steel pipe and pipe fitting factories in China, enabling us to offer a wide range of product specifications and a complete product system.
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E-mail: info@yantaipipe.cn
WhatsApp: 85291470412
Tel: 0086-535-6281117
Add: No. 161 Changjiang Road, FTZ, Yantai , China