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NIROSTA H400 Material Datasheet

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Material Description

Material Number Material Name Standard Standard Status Country VDA 231-106 classification
H400 (NIROSTA H400, ThyssenKrupp Nirosta, 2005) NIROSTA H400 NIROSTA H400, ThyssenKrupp Nirosta, 2005 Valid Germany 1.1.2 1)
1) Remark: The unstable austenitic microstructure of NIROSTA® H400 gives it a strong work hardening tendency, allowing significant strength increases to be achieved even after only minor deformation. These work hardening characteristics also give the material a high capacity for crash energy absorption. NIROSTA® H400s properties make it ideal for use in road and rail vehicles and provide wide scope for weight reduction. Corrosion resistance is comparable with steel 1.4301. In both as-delivered and welded condition, NIROSTA® H400 is resistant to intergranular corrosion. NIROSTA® H400 shows good hot and cold forming properties. All common cold forming processes can be used, such as bending, deep-drawing, spinning or profiling. However, the increased yield strength of the material requires higher forming forces than typical chromium-nickel steels, while a higher degree of springback must also be taken into account. Regarding the materials work hardening tendency and relatively low thermal conductivity, high-quality tool steel or hard metal tools should be used for machining. NIROSTA® H400 can be welded by all common techniques. When welding with filler materials, 1.4316 should be used for welds with similar materials and 1.4370 for welds with unalloyed steels. No preheating or post-welding heat treatment is required.

Chemical Composition

C [%] Cr [%] Mn [%] Mo [%] N [%] Ni [%] P [%] S [%] Si [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Yield Strength (1.0% offset) [MPa] Elongation A80 [%]
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)]
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Heat Treatment

Heat Treatment Nominal Size [mm] Temperature [°C] Medium
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Producer/Supplier/Trade names

Tradename Supplier
NIROSTA H400 Outokumpu Nirosta GmbH, Krefeld

Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Density

Temperature [°C] Density [g/cm³]
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Alternating stress

Temperature [°C] Stress ratio Mean stress [MPa] Alternating stress [MPa] Cycles
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Designation

Designation Material number Source
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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