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Home > Elevator Guide Rail > Cold Drawn Guide Rail

Cold Drawn Guide Rail

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T50/A Guide Rail

Name: T50/A Guide Rail
Brand: JIEFENG GROUP
SKU: T50/A
Availability: InStock
Rating: 5 (1 reviews)

Item No.: T50/A

Cold Drawn Guide Rail T50/A (50*50*5mm)

T50A-ENDownload

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Description Mechanical Properties & Chemical Composition Physical Parameter Rust Prevention

Dimensions and Tolerances of Jiefeng Cold Drawn Guide Rails-ISO7465/GB-T22562/2020 (For Elevator Speed ≤1m/s)
T50 Size List

JF CODE	ISO7465 Designation	b₁	h₁	k	p	r_s	l_2g	l_3g	d	b₃
JFC-50	T50/A	50	50	5	5	1	75	25	9	30
Tolerances		±1	±0.2	±0.15	±0.5	—	±0.2	±0.2	——	±0.2

Code according
ISO 7465

Dimensions
[ mm ]

c
[ mm ]

Type

S
[ cm^2 ]

q₁
[ Kg/m ]

e
[ cm ]

I_xx
[ cm^4 ]

W_xx
[ cm^3 ]

i_xx
[ cm ]

I_yy
[ cm^4 ]

W_yy
[ cm^3 ]

i_yy
[ cm ]

T50/A

50 x 50 x 5

C=k=5

4.75

3.73

1.43

11.24

3.15

1.54

5.25

2.10

1.05

Designation	Tensile Strength	Yield Point (min)	Elongation (min)	Steel Code	C % max	Si % max	Mn % max	P % max	S % max
Cold Drawn Rail	470~840Mpa	355N/mm²	8%	Q235	0.17	0.4	1.4	0.045	0.045
Machined Rail	410~520Mpa	275N/mm²	22%	Q235	0.21	0.4	1.5	0.045	0.045
Hollow Guide Rail	370~520Mpa	235N/mm²	22%	Q235	0.22	0.35	1.4	0.045	0.045

Designation		Cold Drawn	Machined	High Precise BE	High Precise BEE
Jiefeng Code		JFC	JFM	*JFM-BE**	*JFM-BEE**
Roughness	Long.	1.6μm~6.3μm	≤1.6μm	≤1.6μm	≤1.6μm
Roughness	Trasv.	1.6μm~6.3μm	0.8μm~3.2μm	0.8μm~3.2μm	0.8μm~3.2μm
Straightness	f/m max	0.7mm	0.5mm	0.2mm	0.2mm
Straightness	f/5m max	3.5mm	2.5mm	1.0mm	0.5mm
Twist	R max	2mm/5m	2mm/5m	1mm/5m	0.5mm/5m
Angle	S max	±0.10mm	±0.10mm	±0.05mm	±0.05mm
	S q1	±0.20mm	±0.20mm	±0.10mm	±0.05mm
	S q2	±0.20mm	±0.20mm	±0.10mm	±0.05mm
Parallelism	h-h2	_	0.20mm	0.10mm	0.05mm
Centering	a-b	0.10mm	0.10mm	0.05mm	0.03mm
Max clearance for connection	C max	0.15mm	0.15mm	0.09mm	0.05mm

Designation	Rust Prevention	Process	Outerdoor (Month)	Indoor (Month)
Cold Drawn Rail	Substitutional anti-rust oil or 74-2 hard coating anti-rust oil	Greasing	3~6	24
Machined Rail		Greasing	3~6	24
Hollow Rail	Galvanized with trivalent chromium	Galvanization	8~12	60

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