Aperam provides a wide range of solutions for the automotive industry that help car manufacturers move toward green transportation. Our grades are used in fuel and exhaust systems. For example, due to its corrosion resistance and outstanding properties at high temperatures, our EGR made of K44X grade helps make a car more energy efficient. 

Specially developed for structural parts and chassis applications, our innovative MaX grades are capable of accessing complex shapes through hot forming processes. As a result, MaX can reduce weight while also improving crash and fatigue performance. 

In addition, stainless steel also offers a winning combination of design, style and aesthetics to automotive decoration.

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At Aperam, we know that our success is dependent on your confidence in using stainless steel. As the market leader in stainless steel, Aperam is committed to sharing our skills and expertise to ensure you have the knowledge and skills needed to make the most out of stainless steel.

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Exhaust

> Manifold, manifold flanges
> Precatalytic converter, particulate filter, oxydant catalytic converter, urea catalytic converter
> Hanging systems
> Muffler, tail pipe

Automotive Decorative Offer

> Decorative trim, tailpipe trim
> Lightening insert, door insert, roof bar
> Front grill, door handle, rear mirror cover
> Car window control panel, kick plate, boot lid plate, car interior details

Coach and Bus

> Body, body & frame, lateral frame, chassis
> Side panel, rear door
Offer for Body In White, Chassis and Wheels

Chassis / WheelsStructure

R&D developed MaX grades dedicated to structural parts and chassis application.This solution allows one to significantly reduce weight while improving crash and fatigue performance by accessing complex shape through hot forming processes.

Grade designations
YS(MPa)
UTS(MPa)
EL% ISO A80
EL% ISO A50
V-Bending
Fracture Strain
Fatigue (MPa) R-1
Welding (RSW)
PREN
KCV@ 40°C
KCV@ 20°C
MaX 1.2HY87011301013100°0.76590≤ 22MnB511.37580
MaX 1.61200160071070°0.40800≤ 22MnB511.84052

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Offer for Exhaust
Muffler, SIlencer & Tail Pipe 

Muffler schéma

Grade designations
Standards
Chemical compositions
Mechanical properties
 AISIUNSENCSiMnCrMoNiOthersRmRp0.2A%
K33X  1.45130.0150.500.2517.300.90 Ti=0.3547030031
K41X441 (1)S43932/S439401.45090.0150.600.3017.80  Ti+NB=0.6549032030
K39M430TiS430361.45100.0200.400.3016.50  Ti=0.4046030030
K09X409S409001.45120.0100.450.3011.30  Ti=0.1944026033
Aperam 304D (18-9ED)304S304001.43010.0400.401.2018.20 8.10 63028058

(1) Common designation

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Exhaust Gas Recirculation (EGR)

EGR schéma

Grade designations
Standards
Chemical compositions
Mechanical properties
 AISIUNSENCSiMnCrMoNiOthersRmRp0.2A%
K44X444S444001.45210.0150.400.3019.001.90 Nb=0.6054036030
K36X436S436001.45260.0200.400.2517.501.25 Nb=0.4551035030
K03 S410031.40030.0200.500.6011.00 0.40 50035027
Aperam 316L (18-11ML)316/316LS31600/S316031.4401/1.44040.0250.401.2018.202.1010.10 61030052
Aperam 304D (18-9ED)304S304001.43010.0400.401.2018.20 8.10 63028058

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Manifold & Catalytic Converter

Maniflod schéma

Grade designations
Standards
Chemical compositions
Mechanical properties
 AISIUNSENCSiMnCrMoNiOthersRmRp0.2A%
K44X444S444001.45210.0150.400.3019.001.90 Nb=0.6054036030
K41X441 (1)S439321.45090.0150.600.3017.80  N=0.015, Ti+Nb=0.6549032030
Aperam 304D (18-9ED)304S304001.43010.0400.401.2018.20 8.10 63028058
Aperam 309 (R20-12)309S309081.48280.0501.601.3519.30 11.40 63029054

 

 

 

(1) Common designation

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Selective Catalytic Reduction (SCR) 

automotive gris

Grade designations
Standards
Chemical compositions
Mechanical properties
 AISIUNSENCSiMnCrMoNiOthersRmRp0.2A%
K33X  1.45130.0150.500.2517.300.90 Ti=0.3547030031
K41X441 (1)S43932/S439401.45090.0150.600.3017.80  Ti+NB=0.6049032030
K39M430TiS430361.45100.0200.400.3016.50  Ti=0.4046030030
Aperam 316T (17-11MT)316TiS316351.45710.0350.401.2016.802.1010.70Ti=0.35060029050

 

 

(1) Common designation 

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Offer for Coach & Bus
Grade designations
Standards
Chemical compositions
Mechanical properties
 AISIUNSENCSiMnCrMoNiOthersRmRp0.2A%
Aperam 304 (18-9E)304S304001.43010.0500.401.1018.20 8.05 63031054
K03 S410031.40030.0200.500.6011.00 0.40 50035027
Offer for Automotive Decoration
Grade designations
Standards
Chemical compositions
Mechanical properties
 AISIUNSENCSiMnCrMoNiOthersRmRp0.2A%
K36436S436001.45260.0200.400.2517.501.25 Nb=0.5051035030
K45445 (1)S445001.46210.0150.250.2520.20  Nb=0.45, Cu=0.4549034031
Aperam 304 (18-9E)304S304001.43010.0500.401.1018.20 8.05 63031054

(1) Common designation

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Corrosion resistance
Grade
Salt spray
Pitting corrosion
Crevice corrosion
Under deposit corrosion resistance
Salt spray + exhaust gases
K36+++++++++++++++++
K45+++++++++++++++++
Aperam 304 (18-9E)+++++++++++++++
Product range
Grade
Salt spray
Pitting corrosion
Surface finish
K360.50 mmfrom 9 mm to 400 mmBA
K450.40 mmfrom 9 mm to 400 mmBA
Aperam 304 (18-9E)0.40/0.50 mmfrom 9 mm to 400 mmBA

 

Case Studies

Bus

Duplex Stainless Steels in Action: Stalatube Bus Structures

The use of duplex stainless steels isn’t limited to process industries like oil and gas. It can also be used in manufacturing – including the manufacturing of bus structures.

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