Italy · UNI

X 20 Cr 13

UNI EN 10088-4 — Stainless steels. Part 4:Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes

Chemical composition

ElementminmaxSimilarRemarks
C0.160.25
Cr1214
Mn1.5
P0.04
S0.015For machinability %S=0For machinability %S=0
Si1

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
cold-rolled strip +QT, t <= 3mmHV 440–530 HRC；HR 44–50 HRC
cold-rolled strip, annealed, cold rolled, t <= 8mm700≤15
cold-rolled strip, annealed, HB冷轧  t <= 8mm 225
cold-rolled strip, annealed, HR冷轧  t <= 8mm 95
hot-rolled heavy plate +QT650, t <= 75mm≥450650–850≥12 Elongation after fracture; for t < 3mm and Lo=80mm or for t >= 3mm and Lo=50mm;
hot-rolled heavy plate +QT750, t <= 75mm≥550750–950≥10 Elongation after fracture; for t < 3mm and Lo=80mm or for t >= 3mm and Lo=50mm;
hot-rolled strip, annealed, hot rolled, t <= 13.5mm700≤15
hot-rolled strip, annealed, HB热轧  t <= 13.5mm 225
hot-rolled strip, annealed, HR热轧  t <= 13.5mm 95

Physical properties

20.0

Elastic modulusMean thermal expansionThermal conductivitySpecific heatResistivityDensityPoisson's ratio
215.00；216.00；210.00；220.0030.00；25.10460.000.607.70

Typical physical values

DensityElastic modulusPoisson's ratioRemarks
7.61–8.10190.00–215.000.27–0.30不锈钢的典型材料性能数值，此值不来源于标准，它是指示性指标，不能被用于设计用途。
7.86190.00–210.000.27–0.30低碳，高合金钢材料性能属性数值，此值不来源于标准，它是指示性指标，不能被用于设计用途。

Fatigue

1.锻件; Thickness: <= 160mm; 淬火及回火 (QT700); Reversed bending; T: 20°C; -

Test conditions
ItemDetail
Productforging; Thickness: <= 160mm; +QT700
ExperimentReversed bending; T: 20°C
Specimen
Monotonic
PropertyValue
Yield strength (MPa)500.0
Tensile strength (MPa)700.0 850.0
Elongation (%)13.0
Stress life
No.Cycles
11E7

Heat treatment

Type1
Heat-treatment curveHardness-Tempering
Heat-treatment curveCCT modified
Heat-treatment curveCCT
Heat-treatment curveTTT

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