diff --git a/components/tachart/demo/axis/main.lfm b/components/tachart/demo/axis/main.lfm
index 22e9bae4be..99800ece6f 100644
--- a/components/tachart/demo/axis/main.lfm
+++ b/components/tachart/demo/axis/main.lfm
@@ -136,6 +136,8 @@ object Form1: TForm1
                 Marks.Distance = 4
                 Marks.LabelFont.Height = -9
                 Marks.LabelFont.Orientation = 900
+                Marks.Format = '%0:.9g'
+                Marks.Style = smsValue
               end>
           end        
           item
diff --git a/components/tachart/tachartaxis.pas b/components/tachart/tachartaxis.pas
index a6e24f5585..b6903fa73d 100644
--- a/components/tachart/tachartaxis.pas
+++ b/components/tachart/tachartaxis.pas
@@ -38,7 +38,9 @@ type
   TChartMinorAxis = class(TChartBasicAxis)
   strict private
     FIntervalsCount: Cardinal;
+    function GetMarks: TChartMinorAxisMarks; inline;
     procedure SetIntervalsCount(AValue: Cardinal);
+    procedure SetMarks(AValue: TChartMinorAxisMarks);
   protected
     function GetDisplayName: String; override;
   strict protected
@@ -51,7 +53,7 @@ type
   published
     property IntervalsCount: Cardinal
       read FIntervalsCount write SetIntervalsCount default DEF_INTERVALS_COUNT;
-    property Marks;
+    property Marks: TChartMinorAxisMarks read GetMarks write SetMarks;
     property TickLength default DEF_TICK_LENGTH div 2;
   end;
 
@@ -112,10 +114,12 @@ type
     FTransformations: TChartAxisTransformations;
     FZPosition: TChartDistance;
 
+    function GetMarks: TChartAxisMarks; inline;
     function GetTransform: TChartAxisTransformations;
     procedure SetAxisPen(AValue: TChartAxisPen);
     procedure SetGroup(AValue: Integer);
     procedure SetInverted(AValue: Boolean);
+    procedure SetMarks(AValue: TChartAxisMarks);
     procedure SetMinors(AValue: TChartMinorAxisList);
     procedure SetOnMarkToText(AValue: TChartAxisMarkToTextEvent);
     procedure SetTitle(AValue: TChartAxisTitle);
@@ -149,7 +153,7 @@ type
     property Group: Integer read FGroup write SetGroup default 0;
     // Inverts the axis scale from increasing to decreasing.
     property Inverted: boolean read FInverted write SetInverted default false;
-    property Marks;
+    property Marks: TChartAxisMarks read GetMarks write SetMarks;
     property Minors: TChartMinorAxisList read FMinors write SetMinors;
     property TickLength default DEF_TICK_LENGTH;
     property Title: TChartAxisTitle read FTitle write SetTitle;
@@ -286,6 +290,8 @@ constructor TChartMinorAxis.Create(ACollection: TCollection);
 begin
   inherited Create(ACollection, (ACollection as TChartMinorAxisList).GetChart);
   FIntervalsCount := DEF_INTERVALS_COUNT;
+  FMarks := TChartMinorAxisMarks.Create(
+    (ACollection as TChartMinorAxisList).GetChart);
   TickLength := DEF_TICK_LENGTH div 2;
 end;
 
@@ -299,6 +305,11 @@ begin
   Result := 'M';
 end;
 
+function TChartMinorAxis.GetMarks: TChartMinorAxisMarks;
+begin
+  Result := TChartMinorAxisMarks(inherited Marks);
+end;
+
 function TChartMinorAxis.GetMarkValues(AMin, AMax: Double): TChartValueTextArray;
 var
   c, ic: Integer;
@@ -327,6 +338,11 @@ begin
   StyleChanged(Self);
 end;
 
+procedure TChartMinorAxis.SetMarks(AValue: TChartMinorAxisMarks);
+begin
+  inherited Marks := AValue;
+end;
+
 procedure TChartMinorAxis.StyleChanged(ASender: TObject);
 begin
   (Collection.Owner as TChartAxis).StyleChanged(ASender);
@@ -389,6 +405,7 @@ begin
   FAxisPen.OnChange := @StyleChanged;
   FAxisPen.Visible := false;
   FListener := TListener.Create(@FTransformations, @StyleChanged);
+  FMarks := TChartAxisMarks.Create(ACollection.Owner as TCustomChart);
   FMinors := TChartMinorAxisList.Create(Self);
   TickLength := DEF_TICK_LENGTH;
   FTitle := TChartAxisTitle.Create(ACollection.Owner as TCustomChart);
@@ -494,6 +511,11 @@ begin
     Result += Format(CAPTION_FMT, [Title.Caption]);
 end;
 
+function TChartAxis.GetMarks: TChartAxisMarks;
+begin
+  Result := TChartAxisMarks(inherited Marks);
+end;
+
 procedure TChartAxis.GetMarkValues(AMin, AMax: Double);
 var
   i: Integer;
@@ -667,6 +689,11 @@ begin
   StyleChanged(Self);
 end;
 
+procedure TChartAxis.SetMarks(AValue: TChartAxisMarks);
+begin
+  inherited Marks := AValue;
+end;
+
 procedure TChartAxis.SetMinors(AValue: TChartMinorAxisList);
 begin
   FMinors.Assign(AValue);
diff --git a/components/tachart/tachartaxisutils.pas b/components/tachart/tachartaxisutils.pas
index fc9067e235..fb43f5a4f1 100644
--- a/components/tachart/tachartaxisutils.pas
+++ b/components/tachart/tachartaxisutils.pas
@@ -84,31 +84,51 @@ type
   end;
 
   {$IFNDEF fpdoc} // Workaround for issue #18549.
-  TCustomChartAxisMarks =
+  TBasicChartAxisMarks =
     specialize TGenericChartMarks<TChartAxisBrush, TChartPen, TChartAxisFramePen>;
   {$ENDIF}
 
+  TCustomChartAxisMarks = class(TBasicChartAxisMarks)
+  strict private
+    FStripes: TChartStyles;
+    procedure SetStripes(AValue: TChartStyles);
+  strict protected
+    function IsFormatStored: Boolean;
+  public
+    constructor Create(AOwner: TCustomChart);
+    function Measure(
+      ADrawer: IChartDrawer; AIsVertical: Boolean; ATickLength: Integer;
+      AValues: TChartValueTextArray): Integer;
+    property Stripes: TChartStyles read FStripes write SetStripes;
+  end;
+
+  TChartMinorAxisMarks = class(TCustomChartAxisMarks)
+  public
+    constructor Create(AOwner: TCustomChart);
+  published
+    property Distance default 1;
+    property Format;
+    property Frame;
+    property LabelBrush;
+    property OverlapPolicy;
+    property Style default smsNone;
+  end;
+
   { TChartAxisMarks }
 
   TChartAxisMarks = class(TCustomChartAxisMarks)
-  private
+  strict private
     FAtDataOnly: Boolean;
     FDefaultSource: TCustomChartSource;
     FListener: TListener;
     FSource: TCustomChartSource;
-    FStripes: TChartStyles;
 
-    function IsFormatStored: Boolean;
     procedure SetAtDataOnly(AValue: Boolean);
     procedure SetSource(AValue: TCustomChartSource);
-    procedure SetStripes(AValue: TChartStyles);
   public
     constructor Create(AOwner: TCustomChart);
     destructor Destroy; override;
 
-    function Measure(
-      ADrawer: IChartDrawer; AIsVertical: Boolean; ATickLength: Integer;
-      AValues: TChartValueTextArray): Integer;
     function SourceDef: TCustomChartSource;
   published
     property AtDataOnly: Boolean
@@ -119,7 +139,7 @@ type
     property LabelBrush;
     property OverlapPolicy;
     property Source: TCustomChartSource read FSource write SetSource;
-    property Stripes: TChartStyles read FStripes write SetStripes;
+    property Stripes;
     property Style default smsValue;
     property YIndex;
   end;
@@ -130,19 +150,19 @@ type
   strict private
     FArrow: TChartArrow;
     FGrid: TChartAxisGridPen;
-    FMarks: TChartAxisMarks;
     FTickColor: TColor;
     FTickLength: Integer;
     FVisible: Boolean;
     procedure SetArrow(AValue: TChartArrow);
     procedure SetGrid(AValue: TChartAxisGridPen);
-    procedure SetMarks(AValue: TChartAxisMarks);
     procedure SetTickColor(AValue: TColor);
     procedure SetTickLength(AValue: Integer);
     procedure SetVisible(AValue: Boolean);
   strict protected
+    FMarks: TCustomChartAxisMarks;
     function GetAlignment: TChartAxisAlignment; virtual; abstract;
     procedure SetAlignment(AValue: TChartAxisAlignment); virtual; abstract;
+    procedure SetMarks(AValue: TCustomChartAxisMarks);
     procedure StyleChanged(ASender: TObject); virtual; abstract;
   public
     constructor Create(ACollection: TCollection; AChart: TCustomChart); overload;
@@ -155,7 +175,7 @@ type
     property Alignment: TChartAxisAlignment
     read GetAlignment write SetAlignment;
     property Arrow: TChartArrow read FArrow write SetArrow;
-    property Marks: TChartAxisMarks read FMarks write SetMarks;
+    property Marks: TCustomChartAxisMarks read FMarks write SetMarks;
   published
     property Grid: TChartAxisGridPen read FGrid write SetGrid;
     property TickColor: TColor read FTickColor write SetTickColor default clBlack;
@@ -239,6 +259,15 @@ uses
   Math, SysUtils,
   TAGeometry, TAIntervalSources;
 
+{ TChartMinorAxisMarks }
+
+constructor TChartMinorAxisMarks.Create(AOwner: TCustomChart);
+begin
+  inherited Create(AOwner);
+  FStyle := smsNone;
+  FFormat := SERIES_MARK_FORMATS[FStyle];
+end;
+
 { TAxisDrawHelper }
 
 procedure TAxisDrawHelper.BarZ(AX1, AY1, AX2, AY2: Integer);
@@ -477,34 +506,23 @@ begin
   LabelFont := AValue;
 end;
 
-{ TChartAxisMarks }
+{ TCustomChartAxisMarks }
 
-constructor TChartAxisMarks.Create(AOwner: TCustomChart);
+constructor TCustomChartAxisMarks.Create(AOwner: TCustomChart);
 begin
   inherited Create(AOwner);
-  FDefaultSource := TIntervalChartSource.Create(AOwner);
   FDistance := 1;
   Frame.Style := psClear;
   FLabelBrush.Style := bsClear;
-  FListener := TListener.Create(@FSource, @StyleChanged);
-  FStyle := smsValue;
-  FFormat := SERIES_MARK_FORMATS[FStyle];
 end;
 
-destructor TChartAxisMarks.Destroy;
-begin
-  FreeAndNil(FListener);
-  FreeAndNil(FDefaultSource);
-  inherited;
-end;
-
-function TChartAxisMarks.IsFormatStored: Boolean;
+function TCustomChartAxisMarks.IsFormatStored: Boolean;
 begin
   Result := FStyle <> smsValue;
 end;
 
-function TChartAxisMarks.Measure(
-  ADrawer: IChartDrawer; AIsVertical: Boolean; ATickLength: Integer;
+function TCustomChartAxisMarks.Measure(ADrawer: IChartDrawer;
+  AIsVertical: Boolean; ATickLength: Integer;
   AValues: TChartValueTextArray): Integer;
 var
   t: TChartValueText;
@@ -520,6 +538,31 @@ begin
   Result += ADrawer.Scale(ATickLength) + ADrawer.Scale(Distance);
 end;
 
+procedure TCustomChartAxisMarks.SetStripes(AValue: TChartStyles);
+begin
+  if FStripes = AValue then exit;
+  FStripes := AValue;
+  StyleChanged(Self);
+end;
+
+{ TChartAxisMarks }
+
+constructor TChartAxisMarks.Create(AOwner: TCustomChart);
+begin
+  inherited Create(AOwner);
+  FDefaultSource := TIntervalChartSource.Create(AOwner);
+  FListener := TListener.Create(@FSource, @StyleChanged);
+  FStyle := smsValue;
+  FFormat := SERIES_MARK_FORMATS[FStyle];
+end;
+
+destructor TChartAxisMarks.Destroy;
+begin
+  FreeAndNil(FListener);
+  FreeAndNil(FDefaultSource);
+  inherited;
+end;
+
 procedure TChartAxisMarks.SetAtDataOnly(AValue: Boolean);
 begin
   if FAtDataOnly = AValue then exit;
@@ -538,13 +581,6 @@ begin
   StyleChanged(Self);
 end;
 
-procedure TChartAxisMarks.SetStripes(AValue: TChartStyles);
-begin
-  if FStripes = AValue then exit;
-  FStripes := AValue;
-  StyleChanged(Self);
-end;
-
 function TChartAxisMarks.SourceDef: TCustomChartSource;
 begin
   Result := FSource;
@@ -576,7 +612,7 @@ begin
   FGrid := TChartAxisGridPen.Create;
   FGrid.OnChange := @StyleChanged;
   FGrid.Style := psDot;
-  FMarks := TChartAxisMarks.Create(AChart);
+  // FMarks must be created in descendants.
   FTickColor := clBlack;
   FVisible := true;
 end;
@@ -601,7 +637,7 @@ begin
   StyleChanged(Self);
 end;
 
-procedure TChartBasicAxis.SetMarks(AValue: TChartAxisMarks);
+procedure TChartBasicAxis.SetMarks(AValue: TCustomChartAxisMarks);
 begin
   FMarks.Assign(AValue);
   StyleChanged(Self);