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Acciai Speciali

304H || 316H || 317L || 321H || 347H || S31803 || S32750 || S32760 || S31254 || S32550 || 410 || Nitronic ® || XM-19 || S20910 || S21800 || VAR AERO GRADES: 17-4PH || 15-5PH || 300M || 4340 || A286 || ...

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1.4948 || 1.4919 / 1.4401 || 1.4438 || 1.4878 || 1.4961 / 1.4550 || 1.4462 || 1.4410 || 1.4501 || 1.4547 || 1.4507 || 1.4006 || 1.3964 ||

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304H || UNS S30409 - 1.4948 X5CrNi18-10, AISI 304H, Tp 304H, Type 304H

UNS S30409 - 1.4948
X5CrNi18-10, AISI 304H, Tp 304H, Type 304H

This special steel combines 304 stainless steel with higher carbon value C≥0.04%, in order to provide elevated temperature creep strength.
The higher Carbon content makes this stainless steel suitable for a wide range of applications, affected by heat.
304H has a good resistance to atmospheric and environmental corrosion: 304H corrosion resistance is good for applications in food a beverage, organic and inorganic chemicals.
304H stainless steel can operate in applications with nitric acid solutions and also in applications with aggressive organic acid, e.g. acetic.
304H can provide resistance to moderately reducing solutions such as pure phosphoric acid in cold solution up to 10% diluted hot solutions.
The 304H can also operate successfully in caustic solutions free of chlorides or fluorides at moderate temperatures.

Main chemistry: 

Fe balance ; Cr 18-20% ; Ni 8-10.5%; Mn 2% max; C 0.04% min

Our products in UNS S30409 - 1.4948, X5CrNi18-10, AISI 304H, Tp 304H, Type 304H are:

  • Bars
  • Sheets
  • Plates
  • Pipes & Tubes
  • Fasteners

Main specifications / standards usually required on 304H : ASTM A182, ASTM A479, ASTM A276, ASME SA182, ASME SA479, ASME SA276, ASTM A240, ASME SA240, ASTM A480, ASME SA480, ASTM A312, ASME SA312, ASTM A403, ASME A403,...

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304H barre tonde, 304H barre trafilate, 304H barre laminate, 304H barre forgiate, 304H barre esagonali, 304H lamiere, 304H piastre, 304H pipes, 304H piping, 304H raccorderia, 304H curve, 304H riduzioni, 304H T, 304H tubi, 304H tubing, 304H bulloneria, 304H bulloni, 304H tiranti, 304H dadi, 304H viti, 304H rondelle