20x40 Aluminium Extrusion, 20 B-type slot 6

The 20x40 aluminium extrusion (20 B-type slot 6) measures 20 mm × 40 mm; its slots open 6 mm wide and its cores are bored 4.2 mm. Get it as 14 lengths from 100 to 2000 mm, each as simplified and detailed STEP.

How these parts are made, and what the levels mean: read the method

• Also searched as: 20x40 extrusion, 20x40 x 100 to 20x40 x 2000 extrusions
• Model id: extrusions-20-b6-20x40
• Standard: 20 B-type slot 6 · size 20x40

Lengths

Length (mm)	Part key	Simplified	Detailed
100	extrusions-20-b6-20x40x100	STEP	STEP
150	extrusions-20-b6-20x40x150	STEP	STEP
200	extrusions-20-b6-20x40x200	STEP	STEP
250	extrusions-20-b6-20x40x250	STEP	STEP
300	extrusions-20-b6-20x40x300	STEP	STEP
350	extrusions-20-b6-20x40x350	STEP	STEP
400	extrusions-20-b6-20x40x400	STEP	STEP
450	extrusions-20-b6-20x40x450	STEP	STEP
500	extrusions-20-b6-20x40x500	STEP	STEP
600	extrusions-20-b6-20x40x600	STEP	STEP
750	extrusions-20-b6-20x40x750	STEP	STEP
1000	extrusions-20-b6-20x40x1000	STEP	STEP
1500	extrusions-20-b6-20x40x1500	STEP	STEP
2000	extrusions-20-b6-20x40x2000	STEP	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
a	Profile width		20		20	nominal	L1
h	Profile height		40		40	nominal	L1
b	Slot opening		6		6	nominal	L1
c	Slot undercut width		12		12	nominal	L0 (nom: one source)
t	Lip thickness		2		2	nominal	L0 (nom: one source)
u	Cavity depth behind the lip		4		4	nominal	L0 (nom: one source)
k	Core width		8		8	nominal	L0 (nom: one source)
d	Core bore diameter		4.2		4.2	nominal	L0 (nom: one source)
r	Outside corner radius		1		1	nominal	L0 (nom: one source)
p	Slot pitch		20		20	nominal	L0 (nom: one source)
A	Sectional area		324		324	nominal	L0 (nom: one source)

Drawing

As a PDF: CC-EXTR20-B6-SZ-20x40.pdf.

The 20x40 aluminium extrusion beside the 20x20 and the 20x60

The 20x40 is number 2 of the 5 20 B-type slot 6 aluminium extrusions published here, listed from 20x20 to 40x40.

• Profile width (a): 20 mm on the 20x40 aluminium extrusion, the same on the 20x20 and the 20x60.
• Profile height (h): 40 mm on the 20x40 aluminium extrusion, against 20 mm on the 20x20 and 60 mm on the 20x60.
• Slot opening (b): 6 mm on the 20x40 aluminium extrusion, the same on the 20x20 and the 20x60.
• Slot undercut width (c): 12 mm on the 20x40 aluminium extrusion, the same on the 20x20.
• Lip thickness (t): 2 mm on the 20x40 aluminium extrusion, the same on the 20x20 and the 20x60.
• Cavity depth behind the lip (u): 4 mm on the 20x40 aluminium extrusion, the same on the 20x20.
• Core width (k): 8 mm on the 20x40 aluminium extrusion, the same on the 20x20 and the 20x60.
• Core bore diameter (d): 4.2 mm on the 20x40 aluminium extrusion, the same on the 20x20 and the 20x60.

Other sizes

• One size smaller: 20x20 Aluminium Extrusion, 20 B-type slot 6, 20 mm × 20 mm, 6 mm slot.
• One size larger: 20x60 Aluminium Extrusion, 20 B-type slot 6, 20 mm × 60 mm, 6 mm slot.

Documents

• CC-EXTR20-B6-DS-20x40.pdf: 20x40 datasheet: values with levels, lengths, sources
• CC-EXTR20-B6-SZ-20x40.pdf: 20x40 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

misumi-hfs5, motedis-b6-pages. Full citations: the method page and this size's datasheet.

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