As a leading manufacturer and supplier based in Naypyidaw, Naing Steel is proud to provide high-quality precision steel tubing to industries across Myanmar. We specialize in EN10305-2 and EN10305-3 ERW tubing, products engineered for exceptional dimensional accuracy and reliability. Our commitment is to support the nation’s growth by delivering materials that meet rigorous international standards, ensuring your projects are built on a foundation of strength and consistency you can trust.
These tubes are crafted from specific steel compositions, resulting in finely tuned mechanical properties like superior tensile strength and consistent yield points. This precise control during the manufacturing process ensures the tubing is not only strong but also highly ductile and uniform throughout. Such reliability is crucial for applications where performance under pressure and predictable behavior are non-negotiable for safety and efficiency.
| Steel Name | Steel Number | C max, % max. | Si max, % max. | Mn max, % max. | P max, % max. | S max, % max. |
| E155 | 1.0033 | 0,11 | 0.35 | 0.70 | 0.025 | 0.025 |
| E195 | 1.0034 | 0,15 | 0.35 | 0.70 | 0.025 | 0.025 |
| E235 | 1.0308 | 0,17 | 0.35 | 1.20 | 0.025 | 0.025 |
| E275 | 1.0225 | 0,21 | 0.35 | 1.40 | 0.025 | 0.025 |
| E355 | 1.0580 | 0,22 | 0.55 | 1.60 | 0.025 | 0.025 |
| Steel Name | Â Â Steel Grade | Cold Drawn /Â Hard | Cold Drawn /Â Soft | Â Â Cold Drawn & stress relieved | Â Â Annealed | Â Â Normalised | |||||||
| Rm, Mpa (N/mm2) |
A, % |
Rm, Mpa (N/mm2) |
A, % |
Rm, Mpa (N/mm2) | ReH, MPa (N/mm2) |
A, % |
Rm, Mpa (N/mm2) | A, % | Rm, Mpa (N/mm2) | ReH, MPa (N/mm2) |
A, % |
||
|
E155 |
1.0033 |
400 |
6 |
350 |
10 |
350 |
245 |
18 |
260 |
28 |
270 – 410 |
155 |
28 |
|
E195 |
1.0034 |
420 |
6 |
370 |
10 |
370 |
260 |
18 |
290 |
28 | 300 – 440 |
195 |
28 |
|
E235 |
1.0308 |
490 |
6 |
440 |
10 |
440 |
325 |
14 |
315 |
25 | 340 – 480 |
235 |
25 |
|
E275 |
1.0225 |
560 |
5 |
510 |
8 |
510 |
375 |
12 |
390 |
21 |
410 – 550 |
275 |
21 |
|
E355 |
1.0580 |
640 |
4 |
590 |
6 |
590 |
435 |
10 |
450 |
22 | 490 – 630 |
355 |
22 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Naing Steel is a leading manufacturer and distributor of high-quality EN10305-2 / EN10305-3 ERW Tubing in Naypyidaw, Myanmar. We provide premium steel materials and a diverse range of products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel. Our extensive inventory features Tubes, Pipes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Dedicated to fast delivery and exceptional customer service, we source top-grade raw materials to ensure superior precision, strength, and durability for demanding industrial applications. Contact us today for all your EN10305-2 / EN10305-3 ERW Tubing needs!
|
Hot rolled |
Outside Diameter, mm |
Tolerance, mm |
|
OD≤101.6 |
+0.4/-0.8 |
|
|
101.6＜OD≤177.8 |
+0.4/-1.2 |
|
|
Cold Drawn |
Outside Diameter, mm |
Tolerance, mm |
|
OD＜25.4 |
±0.10 |
|
|
25.4≤OD≤38.1 |
±0.15 |
|
|
38.1＜OD＜50.8 |
±0.20 |
|
|
50.8≤OD＜63.5 |
±0.25 |
|
|
63.5≤OD＜76.2 |
±0.30 |
|
|
76.2≤OD≤101.6 |
±0.38 |
|
|
101.6＜OD≤177.8 |
+0.38/-0.64 |
|
|
Hot rolled
|
Outside Diameter, mm |
Tolerance, % |
|
OD≤101.6, WT≤2.4 |
+40/-0 |
|
|
OD≤101.6, 2.4＜WT≤3.8 |
+35/-0 |
|
|
OD≤101.6, 3.8＜WT≤4.6 |
+33/-0 |
|
|
OD≤101.6, WT>4.6 |
+28/-0 |
|
|
OD>101.6, 2.4＜WT≤3.8 |
+35/-0 |
|
|
OD>101.6, 3.8＜WT≤4.6 |
+33/-0 |
|
|
OD>101.6, WT>4.6 |
+28/-0 |
|
|
Cold Drawn
|
Outside Diameter, mm |
Tolerance, % |
|
OD≤38.1 |
+20/-0 |
|
|
OD>38.1 |
+22/-0 |
The versatility of these tubes makes them ideal for a wide array of critical applications. You will find them forming the backbone of hydraulic and pneumatic systems, where their smooth internal surface and reliable strength are essential. They are equally vital in automotive engineering, construction frameworks, and various mechanical engineering projects. Essentially, wherever precision, durability, and a consistent performance are required, this tubing provides a dependable solution that keeps operations running smoothly.
Naing Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Naypyidaw, Myanmar.
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