ALLOY 625 / UNS N06625

• Applications

  Alloy 625 is used in oil gas industry, marine engineering, chemical processing and pollution control equipment.

• Heat treatment & weldability

  Heat Treatment

  Annealing at minimum 871°C and water quench.

  Weldability

  Very good.

• Chemical Composition

  Weight %	C	Mn	P	S	Si	Cr	Ni	Mo	Nb+Ta	Co	Fe	Al	Ti
  Min.						20,0	58,0	8,0	3,15
  Max.	0,10	0,50	0,015	0,015	0,50	23,0		10,0	4,15	1,00	5,00	0,40	0,40

• Reference Standards

  General:

  • PED 2014/68/EU Annex I section 4.3
  • NACE MR0175/ISO 15156-3 and NACE MR0103/ISO 17945

  Bars:

  • ASTM B446, ASTM B564, Norsok M-630 MDS N17

• Mechanical Properties (Specific for Bars)

  Dimension (mm)	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HB]	Impact Charpy-V, -60ºC [J]
  < 102	≥ 414	≥ 827	≥ 30	≤ 321	≥ 68
  < 254	≥ 345	≥ 758	≥ 30	≤ 321	≥ 68
  ≥ 254	≥ 345	≥ 758	≥ 30	≤ 321	≥ 42

Stocked products and dimensions

• Round Bar Stock

  DIA	KG/M
  12,7 mm	1,1
  17 mm	2,
  20 mm	2,8
  25,4 mm	4,5
  32 mm	6,8
  38 mm	9,9
  45 mm	13,8
  52 mm	18,3
  57 mm	22,1
  61 mm	24,8
  66 mm	29,
  71 mm	34,5
  76,2 mm	39,5
  81 mm	44,7
  87 mm	51,5
  91 mm	56,4
  102 mm	71,3

  DIA	KG/M
  107 mm	77,9
  113 mm	86,8
  120 mm	97,6
  128 mm	111,4
  135 mm	124,
  142 mm	137,5
  152 mm	158
  165 mm	186
  180 mm	221
  185 mm	233
  203 mm	281
  230 mm	360
  254 mm	439
  280 mm	533
  300 mm	613
  350 mm	833