Carbon Steel Forged Flange Socket Weld ASME B16.5 150# Raised Face
Carbon Steel Forged Flange Socket Weld ASME B16.5 150# Raised Face
1. Product Description
Forged steel flanges are premium pipe connectors manufactured by hot forging from carbon, alloy, or stainless steel. The process ensures a dense, grain‑oriented structure with no internal defects. Conforming to ASME, EN, JIS, DIN, and GB standards, they are the industry standard for reliable, high‑integrity piping joints.
2. Product Applications
| Flange Type | Best Suited For |
| Weld Neck (WN) | High-pressure, high-temperature, or cyclic service; pipelines, boilers, power plants, refineries. Tapered hub reduces stress concentration. |
| SlipOn (SO) | Low-to-medium pressure, non-critical service; water, air, steam lines; cost-effective and easy to align. |
| Blind (BL) | Closing pipe ends, pressure vessel manways, and test connections; provides easy access for inspection. |
| Socket Weld (SW) | Small-bore lines (NPS ≤ 2″) carrying high-pressure fluids; hydraulic systems, instrument lines. |
| Threaded (THRD) | Small-bore lines where welding is not permitted; galvanized piping, explosive environments. |
| Lap Joint (LJ) | Systems requiring frequent dismantling; low-pressure, non-corrosive media; used with stub ends. |
| Orifice | Flow metering applications; installed between orifice plates with pressure taps for differential pressure transmitters. |
3. Product Advantages
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✅ No porosity – Forging eliminates casting defects, ensuring zero leakage risk.
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✅ Higher strength – Superior tensile, yield, and impact values vs. cast/plate.
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✅ Better fatigue life – Grain flow follows component shape, resisting cyclic loads.
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✅ Corrosion resistant – Low carbon and alloy options withstand aggressive media.
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✅ Interchangeable – Dimensional accuracy ensures fit with mating flanges globally.
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✅ Full traceability – Heat number, mill certificates, and NDE records provided.
4.Key Technical Parameters
| Parameter | Specification |
| Standards | ASME B16.5 / B16.47, EN 1092-1, DIN, JIS, GB |
| Size Range | NPS ½″ – 120″ (DN 15 – DN 3000) |
| Pressure Classes | 150# / 300# / 600# / 900# / 1500# / 2500# |
| Temperature Range | -196°C to +600°C |
| Materials | Carbon: A105, A105N, A350 LF2 Alloy: A182 F11, F22, F91 Stainless: A182 F304, F304L, F316, F316L |
| Face Finishes | RF (standard), FF, RTJ, MF, TG |
| Inspection | PMI, MT/PT, optional UT/hydrotest |
| Certification | EN 10204 Type 3.1 / 3.2 |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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