Forta 430/4016
EN 1.4016, ASTM TYPE 430 / UNS S43000

General characteristics

Forta 430/4016 is a classic 16% chromium ferritic stainless steel for mildly corrosive environments. Not recommended for welding due to its decreased intergranular corrosion resistance

Typical applications

  • Tanks
  • Structural application
  • Automotive components


Product forms, available sizes and finishes


Product typeFinishesThicknessWidth
Cold rolled coil and sheetWork hardened0,33-4,00≤ 1500
Chemical composition

The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.

The chemical composition is given as % by mass.


TypicalForta 430/40160.0516.2
ASTM A240/A240MTYPE 430 / UNS S43000<0.12<116.0-18.0<0.75Si:<1 P:<0.040 S:<0.030
EN 10088-21.4016<0.08<116.0-18.0Si:<1 P:<0.040 S:<0.015
Mechanical properties


StandardGradeRp0.2Rp1.0RmImpact strengthRockwellHBHV
Product type: Cold rolled coil and sheet
Typical (thickness 1 mm)Forta 430/401636539052079HRB
Product type: Hot rolled coil and sheet
Typical (thickness 4 mm)Forta 430/401637039551580
Product type: Hot rolled quarto plate
Typical (thickness 15 mm)Forta 430/4016365505

1)Elongation according to EN standard:
A80 for thickness below 3 mm.
A for thickness = 3 mm.
Elongation according to ASTM standard A2” or A50.

Corrosion resistance

Pitting corrosion resistanceCrevice corrosion resistance

PRE Pitting Resistant Equivalent calculated using the formula: PRE = %Cr + 3.3 x %Mo + 16 x %N
CPT Corrosion Pitting Temperature as measured in the Avesta Cell (ASTM G 150), in a 1M NaCl solution (35,000 ppm or mg/l chloride ions).
CCT Critical Crevice Corrosion Temperature is the critical crevice corrosion temperature which is obtained by laboratory tests according to ASTM G 48 Method F



Physical properties

Data according to EN 10088


DensityModulus of elasticityThermal exp. at 100 °CThermal conductivityThermal capacityElectrical resistanceMagnetizable



Standards & approvals

The most commonly used international product standards are given in the table below.


ASTM A240/A240MTYPE 430 / UNS S43000
EN 10088-21.4016