EN 1.4482 / LEAN DUPLEX UNS S32001 / SS LD24

• Applications

  The main applications are for details with corrosion resistance better than 304L.

  EN 1.4482 / Lean Duplex UNS S32001 / SS LD24 is characterized by:
  • Good resistance to stress corrosion cracking.
  • Good resistance to general corrosion.
  • High mechanical strength.
  • High resistance to erosion corrosion and corrosion fatigue.

• Heat Treatment & Weldability

  Heat Treatment – Solution annealing at 1020 – 1100°C followed by water quenching.

  Weldability – Very good.

• Chemical Composition

  Weight %	C	Si	Mn	S	P	Cr	Ni	Mo	N
  Min.			4,00			19,50	1,50		0,05
  Max.	0,030	1,00	6,00	0,015	0,035	21,50	3,00	0,60	0,17

  PRE value %Cr + 3.3%Mo + 16%N of ≥24

• Product Standards & Approvals

  Product Standards: EN 1,4482, UNS S32001, EN 10088-2, EN 10088–4, EN 10028–7, ASTM A240, ASTM A480, ASME SA240

  Approvals: Sverdrup Steel MDS SS LD24

• Mechanical Properties

  	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HB]	Surface
  CR (COIL)	≥ 530	700-900	≥ 25		2B
  HR (COIL)	≥ 480	660-900	≥ 30	≤ 290	1D
  PLATE	≥ 450	650-850	≥ 30	≤ 290	1D

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Stocked Products and Dimensions

• Plate

  MEASUREMENTS	KG/PLATE
  1,5 x 1500 x 3000 mm	54
  1,5 x 1500 x 6000 mm	108
  2 x 1500 x 3000 mm	72
  2 x 1500 x 6000 mm	144
  2,5 x 1500 x 3000 mm	90
  2,5 x 1500 x 6000 mm	180
  3 x 1500 x 3000 mm	108
  3 x 1500 x 6000 mm	216