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Home / Products / Alloy Steel Seamless Pipes / Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance
quality Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance factory
quality Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance factory
quality Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance factory
quality Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance factory
quality Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance factory

Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes with Toughness at Lower Temperatures and EN 10028 / EN 10222 Compliance

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seamless alloy steel tube

alloy steel seamless tubes

alloy steel pipe
Product Summary
1.1101 P215NL/P255QL boiler and heat-exchanger tubes are low-alloy pressure vessel steels offering excellent toughness at lower temperatures. Key features include controlled chemical composition for durability and compliance with European standards EN 10028/EN 10222, making them ideal for boilers, pressure vessels, and similar demanding applications.

Product Details

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Low-Alloy Pressure Vessel Steel Boiler and Heat-Exchanger Tubes

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Toughness at Lower Temperatures Alloy Steel Seamless Pipes

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EN 10028 / EN 10222 Compliant Pressure Vessel Steel Tubes
Product Description
1.1101 P215NL/P255QL Boiler and Heat-Exchanger Tubes
Material Overview

1.1101 (P215NL / P255QL) is a low-alloy pressure vessel steel specifically designed for boilers, pressure vessels, and similar applications requiring enhanced toughness at lower temperatures.

Typical Chemical Composition

The chemical composition ranges may vary slightly by standard and manufacturer, but typically include:

Primary Elements
  • Carbon (C): 0.12–0.18%
  • Manganese (Mn): 0.40–1.40%
  • Silicon (Si): Up to 0.40–0.50%
  • Phosphorus (P): Maximum ~0.025–0.030%
  • Sulfur (S): Maximum ~0.025–0.030%
Alloying & Residual Elements
  • Chromium (Cr): Typically ≤ 0.30%
  • Nickel (Ni): Typically ≤ 0.30%
  • Molybdenum (Mo): Typically ≤ 0.10–0.15%
  • Copper (Cu): Typically ≤ 0.30%
  • Nitrogen (N): Typically ≤ 0.012–0.020%
Technical Considerations
  • Standard-Dependent Specifications: P215NL and P255QL designations originate from European pressure-vessel steel standards (EN 10028 / EN 10222 families). Always refer to current EN standards or mill certificates for precise composition limits.
  • Product Form Variations: Composition limits may vary slightly between plate, forged, or seamless products, with potential tightening of impurities like phosphorus and sulfur.
  • Quality Verification: The definitive composition for qualification purposes is documented on the Mill Test Certificate (MTC / 3.1 certificate), with actual heat analysis typically falling within standard ranges.

For precise specifications, please specify whether you're working under EN 10028-3, EN 10222-4, or another specific standard and product form (plate, forging, tube).

Mrs. amy

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