EN 1.4542 / 17-4 PH

• Applications

  17-4 PH provides an outstanding combination of high strength, good mechanical properties, good corrosion resistance, outstanding wear resistance and good toughness at temperatures up to 310°C. 17-4 PH is used in chemical, petrochemical, paper and general metalworking industries. Only approved by NACE for restricted components and environments.

• Heat Treatment & weldability

  Heat Treatment

  Solution annealed at 1040°C. Double hardened/ aged at 620°C (1150°F).

  Weldability

  Good, Pre-heating and post-heating practices used for standard hardenable stainless grades are not required.

• Chemical Composition (Specific for Bars)

  Weight %	C	Mn	P	S	Si	Cr	Ni	Mo	Cu	Nb+Ta
  Min.						15,0	3,50		3,00	0,15
  Max.	0,070	1,00	0,040	0,030	0,70	17,5	5,00	0,60	5,00	0,45

• Reference standards

  General:

  • PED 2014/68/EU Annex I section 4.3
  • AD2000 W0
  • NACE MR0175/ ISO 15156-3 and NACE MR0103/ ISO 17945

  Bars:

  • ASTM A564, EN10088-3

• Mechanical Properties (Specific for Bars – Condition H1150D)

  Condition	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HB]	Impact, Charpy-V, -6ºC [J]	Impact, Charpy-V, -46ºC [J]
  H1150D	≥ 725	≥ 860	≥ 16	≤ 311	≥ 60	≥ 27

Stocked products and dimensions

• Round Bar Stock

  DIA	KG/M
  25,4 mm	4.2
  31,75 mm	6.2
  38,1 mm	9.2
  45 mm	12.7
  50,8 mm	16.2
  63,5 mm	25.
  76,2 mm	36.8
  91 mm	52.2
  101,6 mm	64.7
  120,65 mm	91.7
  127 mm	100.
  152 mm	147
  177,8 mm	200
  203,4 mm	261
  216 mm	294
  228,6 mm	330
  254 mm	402
  305 mm	580
  355,6 mm	797