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Special Steels

304H || 316H || 317L || 321H || 347H || S31803 || S32750 || S32760 || S31254 || S32550 || 410 ||

We are your one-stop shop for special steels & modified steel grades.

With our special steels we support Customers engaged in several market fields, such as Energy, Aerospace, Oil & Gas, Chemical, Petrochemical, Water Treatment, Pulp & Paper, General Engineering,...

We supply BARS, SHEETS, PLATES, PIPING & TUBING, FASTENERS in various hard to find steels.

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 ||

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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, 304 C≥0.04%

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

Main fields of application:

Energy, Petrochemical, Oil&Gas, Chemical, Water Treatment, Pulp & Paper   

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 round bars, 304H drawn bars, 304H rolled bars, 304H forged bars, 304H hexagonal bars, 304H sheets, 304H plates, 304H pipes, 304H piping, 304H fittings, 304H elbows, 304H reducers, 304H Tee, 304H tubes, 304H tubing, 304H fasteners, 304H bolts, 304H stud bolts, 304H screws, 304H nuts, 304H washers