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
  • Cutlery
  • Household appliances

 

Product forms, available sizes and finishes

Flat

Product typeFinishesThicknessWidth
Black hot band1U2,50-8,501000-1550
Cold rolled coil2A, 2B, 2BB, 2C, 2E, 2F, 2G, 2H, 2J, 2K, 2M, 2R0,05-5,003-1550
Cold rolled sheet2A, 2B, 2BB, 2E, 2F, 2G, 2H, 2J, 2K, 2M, 2R0,20-5,0018-1550
Hot rolled coil, pickled1C, 1D, 1E, 1G, 1H, 1M, 1U1,50-8,0035-1550
Precision strip2H, 2R0,05-1,503-649

Long

Product typeFinishesThicknessWidth
Bloom395,00-405,00295-305
Cast billet127,00-180,00127-180
Cast slab165,00-205,001000-1500
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.

 

CMnCrNiMoNOther
Typical 0.0516.2
ASME II A SA-240 ≤0.12≤1.0016.0-18.0≤0.75
ASTM A240 ≤0.12≤1.0016.0-18.0≤0.75
EN 10088-2 ≤0.08≤1.016.0-18.0
EN 10088-3 ≤0.08≤1.0016.0-18.0
EN 10088-4 ≤0.08≤1.016.0-18.0
IS 6911 ≤0.12≤1.0016.0-18.0≤0.75≤0.30
Mechanical properties

 

StandardRp0.2Rp1.0RmElongationImpact strengthRockwellHBHV
 MPaMPaMPa%J
Product type: Cold rolled coil and sheet
Typical (thickness 1 mm)36539052050
ASME II A SA-240 ≥ 205 ≥ 450 ≤ 183
ASTM A240 ≥ 205 ≥ 450 ≤ 89HRB ≤ 183
EN 10088-2 ≥ 260430-600 ≥ 20
EN 10088-4
IS 6911 ≥ 205 ≥ 450 ≤ 89HRB ≤ 183
Product type: Hot rolled coil and sheet
Typical (thickness 4 mm)3703955152180
ASME II A SA-240 ≥ 205 ≥ 450 ≤ 183
ASTM A240 ≥ 205 ≥ 450 ≤ 183
EN 10088-2 ≥ 240430-600 ≥ 18
EN 10088-4
IS 6911 ≥ 205 ≥ 450 ≤ 89HRB ≤ 183
Product type: Hot rolled quarto plate
Typical (thickness 15 mm)36550520
ASME II A SA-240 ≥ 205 ≥ 450 ≤ 183
ASTM A240 ≥ 205 ≥ 450 ≤ 183
EN 10088-2 ≥ 260430-630 ≥ 20
EN 10088-4 ≥ 260430-630
IS 6911 ≥ 205 ≥ 450 ≤ 89HRB ≤ 183
Product type: Wire rod
Typical28045025

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
PRECPTCCT
16<10<0

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
kg/dm3GPa10-6/°CW/m°CJ/kg°CµΩm
7.722010254600.60Yes
Fabrication

 

Standards & approvals

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

 

StandardDesignation
ASME SA-240M Code Sect. II. Part ATYPE 430 / UNS S43000
ASTM A240/A240MTYPE 430 / UNS S43000
EN 10088-21.4016
EN 10088-31.4016
EN 10088-41.4016
IS 6911, AMENDMENT NO. 2ISS 430