ASTM A105 Flange
GNEE's carbon steel ASTM A105 flanges are known for their high tensile strength and corrosion resistance, ensuring longevity even in the most demanding conditions.
ASTM A105 flanges are forged carbon steel flanges suitable for ambient and high temperature service in pressure systems. The maximum weight limit for carbon steel flanges made of ASTM A105 material is 4540 kg.
A105 forged flange is strong, hard and tough. The roughness makes them highly resistant to wear and tear. Primarily used in oil and gas transmission pipelines, these flanges play a key role in ensuring the safe and efficient transportation of substances such as fluids, gases and vapors under high pressure and temperature conditions.
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Product information
ASTM A105 Carbon Steel Flanges Specification
| Specifications | ASTM A105 & ASME SA105, |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2″ to 48″ |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
Carbon Steel A105 Flange Chemical Composition Requirements
| Elements | Composition, % |
| Carbon [C] | ≤0.35 |
| Manganese [Mn] | 0.60-1.05 |
| Phosphorus [P] | ≤0.35 |
| Sulfur [S] | ≤0.40 |
| Silicon [Si] | 0.10-0.35 |
| Copper [Cu] | ≤0.40 |
| Nickel [Ni] | ≤0.40 |
| Chromium [Cr] | ≤0.30 |
| Molybdenum [Mo] | ≤0.12 |
| Vanadium [V] | ≤0.08 |
ASTM A105 lap flange Mechanical Properties
| Tensile Strength min. | Yield Strength min. | Elongation min. | Reduction of Area, min. | Hardness | ||
|---|---|---|---|---|---|---|
| MPa | ksi | MPa | ksi | % | % | HBW |
| 485 | 70 | 250 | 36 | 22 | 30 | 137-187 |
A105 carbon steel flange

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