In the heart of Naypyidaw, Naing Steel has built a reputation as a trusted partner for industrial supply, standing out through a dedicated focus on quality and reliability. We specialize in manufacturing and supplying a comprehensive range of carbon steel buttweld pipe fittings, understanding that they are the critical connections that ensure the integrity and efficiency of piping systems across Myanmar. Our commitment is to provide robust solutions that meet the demanding needs of various industries, supporting the nation’s growing infrastructure with products you can depend on.
These fittings are crafted from carbon steel, a material chosen for its exceptional balance of strength and affordability. The specific composition, primarily iron and carbon, is carefully controlled to achieve the necessary mechanical properties. This results in a product with impressive tensile strength, good ductility, and reliable impact resistance. These characteristics ensure the fittings can withstand high internal pressures, external stresses, and temperature variations, making them a fundamentally sturdy component for any demanding pipeline application.
| Pipe Fittings Specifications | ASTM A234/ ASME SA234 |
|---|---|
| Carbon Steel Pipe Fittings size | Seamless Butt Weld Fittings : 1/2″ – 10″ Welded Butt Weld Fittings : 1/2″ – 48″ |
| CS Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1800, BS10 |
| Buttweld Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM A234 Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A234 Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A234 Buttweld Fitting |
| ASTM A234 Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| Carbon Steel Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| SA 234 Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | CS 90º Elbows, 45º Elbows, Tees, Cross, Reducer, Pipe Cap, Stub End, Pipe Bend |
| Element | Carbon Steel Buttweld Fittings (% by weight) |
|---|---|
| Carbon (C) | 0.05% – 2.1% |
| Manganese (Mn) | 0.30% – 1.65% |
| Silicon (Si) | 0.15% – 0.60% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.040% |
| Iron (Fe) | Remainder (balance) |
| Properties OF Carbon Steel Buttweld Pipe Fittings | Metric | Imperial |
| Tensile Strength For Carbon Steel | 595 MPa | 86300 psi |
| Yield Strength For CS | 260 MPa | 37700 psi |
| Elasticity Modulus | 200 GPa | 29000 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation At break in 50 millimeter | 55% | 55% |
| Hardness And Rockwell B | 85 | 85 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| NPS (Normal Pipe Size) | O.D. (Outside Diameter) | Ave. I.D. (Inside Daimeter) | Minimum WALL | Normal Weight Chart | Maximum W.P. psi |
| 1/4″ | .540 | .344 | .088 | .086 | 780 |
| 3/8″ | .675 | .473 | .091 | .115 | 620 |
| 1/2″ | .840 | .602 | .109 | .170 | 590 |
| 3/4″ | 1.050 | .804 | .113 | .226 | 480 |
| 1″ | 1.315 | 1.029 | .133 | .333 | 450 |
| *1-1/4″ | 1.660 | 1.360 | .140 | .450 | 370 |
| *1-1/2″ | 1.900 | 1.590 | .145 | .537 | 330 |
| *2″ | 2.375 | 2.047 | .154 | .720 | 280 |
| 2-1/2″ | 2.875 | 2.445 | .203 | 1.136 | 300 |
| *3″ | 3.500 | 3.042 | .216 | 1.488 | 260 |
| 3-1/2″ | 4.000 | 3.521 | .226 | 1.789 | 240 |
| *4″ | 4.500 | 3.998 | .237 | 2.118 | 220 |
| 5″ | 5.563 | 5.016 | .258 | 2.874 | 190 |
| *6″ | 6.625 | 6.031 | .280 | 3.733 | 180 |
| *8″ | 8.625 | 7.942 | .322 | 5.619 | 160 |
| *10″ | 10.750 | 9.976 | .365 | 7.966 | 140 |
| *12″ | 12.750 | 11.889 | .406 | 10.534 | 130 |
| *14″ | 14.000 | 13.073 | .437 | 12.462 | 130 |
| *16″ | 16.000 | 14.940 | .500 | 16.286 | 130 |
| *18″ | 18.000 | 16.809 | .562 | 20.587 | 130 |
| *20″ | 20.000 | 18.743 | .593 | 24.183 | 120 |
| *24″ | 24.000 | 22.544 | .687 | 33.652 | 120 |
| Pressure-Temperature ratings for ASME B16.9 Carbon Steel Buttweld Pipe Fittings (psig) | |||||
|---|---|---|---|---|---|
| Temperature Ratings | Pressure Class | ||||
| 150 | 300 | ||||
| 1/4 – 1 Inches | 1 1/4 – 2 Inches | 2 1/2 – 3 Inches | |||
| (oF) | (oC) | ||||
| -20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
| 200 | 93 | 265 | 1785 | 1350 | 910 |
| 250 | 121 | 225 | 1575 | 1200 | 825 |
| 300 | 149 | 185 | 1360 | 1050 | 735 |
| 350 | 177 | 150 | 1150 | 900 | 650 |
| 400 | 204 | – | 935 | 750 | 560 |
| 450 | 232 | – | 725 | 600 | 475 |
| 500 | 260 | – | 510 | 450 | 385 |
| 550 | 288 | – | 300 | 300 | 300 |
Naing Steel is a top manufacturer and supplier of high-quality Carbon Steel Buttweld Pipe Fittings products in Naypyidaw, Myanmar. Specializing in steel solutions, we provide a wide range of products, including Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel. Our offerings include Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates. Known for our reliable delivery and superior customer service, we are committed to offering top-tier steel materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your steel needs.
The uses for these fittings are incredibly diverse, forming the essential network in countless industrial settings. They are indispensable in the oil and gas sector for both transmission and refinery pipelines, and equally crucial in chemical and petrochemical plants for handling various process fluids. You’ll also find them in power generation facilities, water treatment plants, and large-scale HVAC systems for commercial buildings. Essentially, anywhere fluids or gases need to be directed, controlled, or distributed safely and efficiently, these reliable connectors are hard at work.
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.
Copyright 2025 Naing Steel. All rights reserved
