EN 1.4418 / S165M / 2387

• Applications

  The EN 1.4418 / S165M / 2387 alloy has been designed to resist erosion corrosion or cavitation experienced in hydraulic applications. General areas for applications: Shafts, propellers, spindles, bolts, etc.

• Heat Treatment & Weldability

  Heat Treatment

  Austenitize and quench from 550 – 620 °C.

  Weldability

  Good, the low carbon martensite with the finely dispersed residual austenite yields an excellent HAZ toughness in the as welded condition. Preheating to 100°C – 200°C is suggested for very thick section or when the stress concentration after cooling require it.

• Chemical Composition (Specific for Bars)

  Weight %	C	Mn	P	S	Si	Cr	Ni	Mo	N
  Min.						15,0	4,00	0,80	0,020
  Max.	0,06	1,50	0,040	0,015	0,70	17,0	6,00	1,50

• Reference Standards

  General:

  • PED 2014/68/EU Annex I section 4.3
  • AD2000 W0

  Bars:

  • EN10088-3, EN10272

• Mechanical Properties (Specific for Bars – Condition QT900)

  Dimensions (mm)	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HB]	Impact, Charpy-V, 20ºC [J]	Impact, Charpy-V, -40ºC [J]
  < 160	≥ 700	900 – 1100	≥ 16	280 – 340	≥ 80	≥ 32
  160-250	≥ 700	900 – 1100	≥ 14	280 – 340	≥ 60	≥ 32

Stocked products and dimensions

• Round Bar Stock – K12

  DIA	KG/M
  41 mm k12 finish	10.6
  46 mm k12 finish	13.4
  51,2 mm k12 finish	16.5
  56,4 mm k12 finish	20.
  61,2 mm k12 finish	22.8
  66,2 mm k12 finish	27.7
  71,4 mm k12 finish	31.5
  81,4 mm k12 finish	41.
  86,4 mm k12 finish	47.
  91,4 mm k12 finish	52.7
  102 mm k12 finish	65.
  107 mm k12 finish	72.1
  112 mm k12 finish	79.
  115 mm k12 finish	83.3
  117 mm k12 finish	86.3
  122 mm k12 finish	93.8
  127 mm k12 finish	101.6
  132 mm k12 finish	109.8
  143 mm k12 finish	128.8
  153 mm k12 finish	147.5
  165 mm k12 finish	171.5
  173 mm k12 finish	189
  184 mm k12 finish	213
  190 mm k12 finish	227
  206 mm k12 finish	267
  226 mm k12 finish	320
  246 mm k12 finish	382
  256 mm k12 finish	412
  286 mm k12 finish	515
  306 mm k12 finish	590
  335 mm k12 finish	707
  360 mm k12 finish	816
  410 mm k12 finish	1058

• Round Bar Stock – Ground H9

  DIA	KG/M
  10 mm ground h9	0,630
  12 mm ground h9	0.910
  16 mm ground h9	1.600
  20 mm ground h9	2.600
  25 mm ground h9	3.900
  30 mm ground h9	5.600
  32 mm ground h9	6.500
  35 mm ground h9	7.700
  38 mm ground h9	8.900
  40 mm ground h9	10.100
  45 mm ground h9	12.490
  50 mm ground h9	15.700
  55 mm ground h9	18.700
  60 mm ground h9	22.600
  65 mm ground h9	26.000
  70 mm ground h9	30.800
  75 mm ground h9	35.500
  80 mm ground h9	40.200
  90 mm ground h9	50.900
  100 mm ground h9	62.900
  110 mm ground h9	75.000
  120 mm ground h9	88.800
  125 mm ground h9	96.300
  140 mm ground h9	123.000