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| Categories | Bright Annealed Tube |
|---|---|
| Brand Name: | YUHONG SPECIAL STEEL |
| Model Number: | EN 10305-1 Steel tubes for precision E355+N Steel Tube |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008. |
| Place of Origin: | CHINA |
| MOQ: | 100KGS |
| Price: | NEGOTIABLE |
| Payment Terms: | L/C, T/T |
| Delivery Time: | 20-80 |
| Packaging Details: | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Specification: | EN 10305-1 Steel tubes for precision E355+N Steel Tube |
| Keywords: | Precision steel tube, EN 10305-1, precision steel pipe, high precision, HPL Tube |
| Application: | Hydraulic Systems |
| Package: | Standard Seaworthy Package |
| Shape: | Round Pipe |
| Surface: | Bright |
| Grade: | A53-A369, 16mn, 10#-45#, Cr-Mo alloy, ST35-ST52, Q195-Q34 |
| Technique: | Cold Drawn |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
EN 10305-1 Steel tubes for precision E355+N Steel Tube
We are one of the biggest manufactures of stainless steel & duplex steel & alloy steel tubes and pipes in China. With development more than 20 years, we have accumulated a great many clients all around the world and Yuhong products also won the great praise among the customers.
Standard: EN 10305-1
Equivalent Standards: NF 699, DIN 2391, ASTM A519, GOST 9567-75,
NBR 8476, BS 6323 Part 4, NF A 49-330-85, BS 6323-4, NF A 49-310,
UNI 6403
Material: E355, 1.0580
Equivalent Materials: St52, St52.4, CFS 5, TU 52-b, Q345B, S355GT, TU 526, FE 510
Tubes according to EN 10305 standard are characterised by having precisely defined tolerances on dimensions and a specified surface roughness.
EN 10305 seamless precision steel tube shall be manufactured from hot finished seamless tubes by cold drawning. Other suitable methods of cold working are permitted. The tubes shall be delivered in the delivery condition +N which means that after the final cold drawing operation the tubes are normalized in a controlled atmosphere.
Specification
| Name | E355+N Black Phosphated Steel Tube with High Precision |
| Specification | DIN2391-94/C, EN10305-1, EN10305-4, SAE J524, GB/T3639-2009 |
| Steel Grade | St35, St37.4, St45, St52.4, E235, E255, E355 |
| Size | OD:3-76mm, wall thickness: 0.5-6mm |
| Length | 4m,6m or customized |
| Delivery Conditions | NBK(+N), BK(+C), GBK(+A), BKW(+LC), BKS(+SR) |
| Features | High cleanness inside wall, No deformation after cold bending, no crack after flaring and flattening, complicated geometrical forming and machining can be realized |
| Applications | Used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required |
Chemical Compositions
| Steel Gr. | Steel No. | Chemical Compositions(%by mass) | |||||
| C(max) | Si(max) | Mn | P(max) | S(max) | Al(min)Total | ||
| St35, St37.4(E235) | 1.0305 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 | 0.015 |
| St45(E255) | 1.0408 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 | 0.015 |
| St52, St52.4(E355) | 1.0508 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 | 0.02 |
Mechanical Properties
| Steel Gr. | Steel | BK | BKW | BKS | GBK | NBK | |||||||
| No. | Rm | A | Rm | A | Rm | ReH | A | Rm | A | Rm | ReH | A | |
| MPa | % | MPa | % | MPa | MPa | % | MPa | % | MPa | MPa | % | ||
| Min | Min | Min | Min | Min | Min | Min | Min | Min | Min | Min | |||
| St35(E235) | 1.0305 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340-470 | 235 | 25 |
| St45(E255) | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
| St52(E355) | 1.0508 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490-630 | 355 | 22 |
EN 10305-1 Delivery Condition
| Term | Symbol | Explanation |
| Cold-finished/hard | +C | No heat treatment after the final cold drawing process |
| Cold-finished/soft | +LC | After the final heat treatment there is a suitable drawing pass. |
| Cold Drawn and Stress Relieved | +SR | After the final cold-forming process there is Stress relief heat treatment in a controlled atmosphere. |
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| Normalized | +N | After the final cold drawing process the tubes are Normalized in a controlled atmosphere. |
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