| Specification | Details |
|---|---|
| Material | ASTM A105 Carbon Steel |
| Flange Type | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint |
| Size Range | ½" to 48" (DN15 to DN1200) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 (PN6 to PN400) |
| Standards | ASME B16.5, ASME B16.47, ANSI, DIN, EN, BS, JIS |
| Facing Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Application | Chemical Processing, Oil & Gas, Power Plants, Petrochemicals, Refineries |
| Temperature Range | -29°C to 425°C (-20°F to 800°F) |
| Testing & Certification | Hydrostatic Test, Ultrasonic Test, MTC (EN 10204 3.1/3.2), NDT as required |
| Corrosion Resistance | Moderate (can be enhanced with coatings or linings) |
| Finish | Black, Rust-Proof Oil Coated, or as per customer requirement |
| Connection Type | Bolted |
| Manufacturing Origin | Manufactured by Raj Bhoomi Engineers, India |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.35 max |
| Manganese (Mn) | 0.60 – 1.05 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
| Silicon (Si) | 0.10 – 0.35 |
| Copper (Cu) | 0.40 max (if specified) |
| Nickel (Ni) | 0.40 max (if specified) |
| Chromium (Cr) | 0.30 max (if specified) |
| Molybdenum (Mo) | 0.12 max (if specified) |
| Vanadium (V) | 0.08 max (if specified) |
| Property | Value | Unit | Notes |
|---|---|---|---|
| Tensile Strength | 485 – 655 | MPa | Minimum 70 – 95 ksi |
| Yield Strength (0.2% Offset) | ≥ 250 | MPa | Minimum 36 ksi |
| Elongation (in 2") | ≥ 22 | % | For standard specimen |
| Reduction of Area | ≥ 30 | % | May vary depending on test method |
| Hardness (Brinell) | ≤ 187 | HB | Maximum, as per ASTM A105 specification |
| Impact Energy (Charpy V-Notch) | Not required unless specified | – | Required only for low-temperature service |
| A105 Pressure Vessel Flange | Forged A105 Blind Flange |
| A105 Flange RTJ | A105 RF Blind Flange |
| CS HEAVY BLRF FLANGE | ANSI B16.47 Series A Blind Flange |
| ANSI B16.47 Series B Blind Flange | MSS SP-44 A105 Blind Flange |
| A105 Schedule 160 Blind Flange | ANSI/ASME B16.5 Blind Flange |
| ANSI/ASME B16.47 Series A(MSS SP44) Blind Flanges | ANSI/ASME B16.47 Series B Blind Flange |
| carbon steel slip on flanges | Custom A105 Blind Flange |
| A105 Forged Oversized Flange | A105 XXS Blind Flange |
An A105 Chemical Processing Flange is a forged carbon steel flange manufactured according to ASTM A105 specifications, commonly used in chemical plants, refineries, and process industries. It ensures reliable connection of pipes, valves, and equipment under high pressure and temperature conditions.
ASTM A105 carbon steel offers excellent mechanical strength, toughness, and resistance to high pressure and temperature. When required, it can also be supplied with corrosion-resistant coatings, linings, or treatments, making it a durable choice for chemical processing industries.
Various types of flanges are used depending on system requirements, including weld neck flanges, blind flanges, slip-on flanges, socket weld flanges, and threaded flanges. Each type ensures leak-proof and secure connections in pipelines handling chemicals.
Yes, A105 flanges are manufactured in multiple sizes (½” to 60” and beyond) and pressure classes (150# to 2500#). Customized dimensions, drilling patterns, and surface finishes can be supplied to meet the specific requirements of chemical processing systems.
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