BS 1501 161 430A and BS 1501 161 430B

The widest range of stainless, duplex and super duplex plate, available ex-stock.

  • All materials sourced and supplied from Western European mills to Norsok standards.
  • Cut to size in our dedicated warehousing and processing facility.
  • Fully accredited quality systems to ISO 9001, 14001 and 18001.
  • Largest range of wide area plate supplied up to 12m long by 3m wide.
  • Delivered worldwide by our international logistics organisation.

Stainless Steel Plate

Stainless steels are defined as ferrous alloys with the addition of at least 10.5% chromium by weight and are essentially low carbon steels containing significant amounts of chromium. It is the addition of chromium that gives this type of steel its corrosion resisting properties.

The chromium content of the steel allows the formation of an invisible corrosion resistant chromium oxide film on the steel surface. If damaged mechanically or chemically this film is self-healing providing that oxygen, even in very small amounts, is present. The corrosion resistance of stainless steel can be enhanced along with providing other useful properties by increasing the chromium content and by adding other elements such as molybdenum, nickel, and nitrogen.

Properties

Grade C Si Mn P S Altotal N Cr
P355NL1 0.18 0.50 1.10-1.70 0.025 0.008 0.020 min 0.012 0.30
P355NL2 0.18 0.50 1.10-1.70 0.020 0.005 0.020min 0.012 0.30
Grade Cu Mo Nb Ni Ti V Nb+Ti+V
P355NL1 0.30 0.08 0.05 0.50 0.03 0.10 0.12
P355NL2 0.30 0.08 0.05 0.50 0.03 0.10 0.12

Tensile Requirements

Product Thickness Yield Strength MPa Tensile Strength MPa Elongation A%
up to 16 mm 355min 490 to 630 22 min
16 to 40 mm 345 min 490 to 630 22 min
over40 to 60 mm 335 min 490 to 630 22min
over 60 to 100 mm 315 min 470 to 610 21min
over100 to 150 mm 305 min 460 to 600 21min
over150 to 250 mm 295 min 450 to 590 21min

Values

Transverse

Steel Grade -50 oC -40oC -20oC 0oC +20oC
P355NL1 - 27J min 35 J min 50 Jmin 60 J min
P355NL2 27 J min 30 J min 40 J min 60 J min 70 J min

Longitudinal

-50oC
Steel Grade -40oC -20oC 0 oC +20oC
P355NL1 30 J min 40 J min 50 J min 70 J min 80 J min
P355NL2 42 J min 45 J min 55 J min 75 J min 85 J min