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Home / Products / Slip on Plate Flange / P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1
quality P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1 factory
quality P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1 factory
quality P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1 factory
quality P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1 factory
quality P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1 factory

P280GH EN 10222-2 Carbon-Manganese Steel Slip on Plate Flange EN 1092-1

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erw carbon steel pipe

precision steel pipe

spiral steel pipe
Product Summary
P280GH is a non-alloy pressure vessel steel for boilers, pressure vessels, and piping. It offers good weldability, adequate strength at elevated temperatures, and reliable toughness with controlled low impurities (P, S) for safety.

Product Details

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P280GH Slip on Plate Flange

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EN 10222-2 Steel Plate Flange

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Carbon-Manganese Steel EN 1092-1 Flange
Product Description
P280GH EN 10222-2 1.0426 P295GH EN 10028-2 1.0481 EN 1092-1 Flange
P280GH is a non-alloy (carbon-manganese) pressure vessel steel primarily used for boilers, pressure vessels, and piping operating at elevated temperatures. Its chemical composition is tightly controlled by standards such as EN 10216-2 and EN 10028-2.
Chemical Composition
Typical chemical composition of P280GH (in % by weight, approximate ranges):
Element Composition Range
Carbon (C)0.18–0.22
Silicon (Si)0.10–0.50
Manganese (Mn)0.80–1.60
Phosphorus (P)≤ 0.025
Sulfur (S)≤ 0.015–0.020
Nitrogen (N)≤ 0.012
Copper (Cu)≤ 0.30
Chromium (Cr)≤ 0.30
Nickel (Ni)≤ 0.30
Molybdenum (Mo)≤ 0.08
Vanadium (V)≤ 0.02
Aluminum (Al, total)≥ 0.020
Key Element Functions
  • Carbon (~0.2%): Provides sufficient strength without making the steel too hard or brittle, which is crucial for pressure components.
  • Manganese (up to ~1.6%): Improves strength and toughness, helps deoxidize the steel, and improves weldability.
  • Silicon (~0.1–0.5%): Deoxidizer and strengthener, enhances resistance to oxidation at elevated temperatures.
Material Characteristics
P280GH is classified as a non-alloy quality steel because it does not rely on high levels of alloying elements like chromium, nickel, or molybdenum to obtain its properties. Instead, it's essentially a clean, well-controlled carbon-manganese steel optimized for:
  • Good weldability
  • Adequate strength at medium/high temperatures
  • Good toughness and reliability for pressure service
Important Note: When working on design, fabrication, or material selection, always refer to the exact product standard (e.g., EN 10028-2 for plates or EN 10216-2 for seamless tubes) and check the mill test certificate from your supplier, which will list the actual heat analysis for your specific batch.
In summary, P280GH is a low-alloy, pressure-vessel-grade steel with approximately 0.2% carbon, relatively high manganese content, modest silicon content, and very low phosphorus, sulfur, and residual elements. This composition provides a reliable combination of strength, toughness, and weldability for boiler and pressure applications.

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