304 Stainless Steel Pneumatic cylinder Piston Rod, Stainless Steel Shaft

pneumatic piston rod
Category

Used as piston rod or guide rod for pneumatic cylinders. Use stainless steel 304, rod size from 3mm upto 90mm. Has high corrosion resistance, strength and wear resistance to keep high-efficiency operation

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Piston Rod for Pneumatic Air Cylinder

The rods first undergo precision milling and processing, and are then put through grind surface chromium treatment, allowing a surface precision level of f8, and a surface hardness reaching HV850 minimum and up, which not only help to improve wear resistance but also help to extend the life cycle of the rods, thus helping the customer save cost.

Application

Directly for cylinder, cylinder, shock absorber piston rod, and is widely used in textile printing and dyeing, printing machinery, guide rail, die-casting machine, injection molding machine guide rod, the ejector and other mechanical products of guide pin and four-column press guide post, fax machines, printers and other modern office machinery guide shaft and some precision slender shaft for the parts industry products.

piston rod for pneumatic air cylinder1

Dimension:Φ 6~250mm

Tolerance: ISOf7/on request

Roundness:≤1/2 diameter tolerance

Standard length: ＜Φ 30mm, 2-3mts/on request cut length

≥Φ 30mm， 3-6mts/on request cut length

Surface Roughness: Ra≤0.2

Chrome layer thickness: Φ ＜20mm: min. 15um

Φ ≥20mm: min. 20um

Chrome layer hardness: HV850-HV1050

Straightness: 0.15/1000mm

Evaluation Corroseston Test: ISO10289:1999, IDT

Delivery condition: Normal, QT, Induction Hardened

Product Details

specifications φ6-φ12 φ16-φ25 φ30-φ50 φ55-φ100 φ105-φ1200
length 200-2000 200-3000 200-5000 200-10000 1000-10000
Surface roughness Ra＜0.2
Surface Treatment of hardness HRC6 Straightness 0.15/1000mm
Circle of Tolerance GB1184 9 Grade Chrome thickness According to user requirements
Full-length size Tolerance GB1100IT Grade Material According to user requirements
Axis of hardness HB220-280
Availability Status No surface treatment, chrome or nickel-phosphorus plating on the surface, salt spray nitriding on the surface

Steel grades correspondents

GB EN DIN B.S. UNI JIS GOST “AISISAEASTM”
42CrMo 42CrMo4 42CrMo4 708M40 42CrMo4 SCM440(H) 40ChFA 4140
45# C45E CK45 080M46 C45 S45C 45 1045
0Cr18Ni9 X5CrNi18-10 X5CrNi18-10 304S17 X5CrNi18-10 SUS304 08Ch18N10 304
2Cr13 X20Cr13 X20Cr13 420S37 X20Cr13 SUS420F 20Ch13 420
1Cr17Ni2 X17CrNi16-2 X17CrNi16-2 431S29 X16CrNi16 SUS431 20Ch17N2 431
1Cr17 X6Cr17 X6Cr17 430S15 X8Cr17 SUS430 – 430

Chemmical composition-in % by weight

“Steel grade” C SI Mn P S Cr Mo Ni
42CrMo 0.38~0.45 0.17~0.37 0.5~0.8 ≤0.035 ≤0.035 0.9~1.2 0.15~0.25 ≤0.03
45# 0.42~0.5 0.17~0.37 0.5~0.8 ≤0.035 ≤0.035 ≤0.25 ≤0.1 ≤0.25
304 ≤0.07 ≤1 ≤2 ≤0.045 ≤0.03 18-20 – 8-10.5
420 0.16-0.25 ≤1 ≤1.5 ≤0.04 ≤0.03 12-14 – 一
431 0.12-0.22 ≤1 ≤1.5 ≤0.04 ≤0.03 15-17 – 1.5-2.5
430 ≤0.12 ≤0.75 ≤1 ≤0.04 ≤0.03 16-18 – ≤0.6

Mechanical properties

Steel grade Tensile  N/mm² Yield  N/mm² Elogation
42CrMo+QT ≥1080 ≥930 min.12%
45#+QT ≥600 ≥390 min.16%
45# ≥600 ≥355 min.16%
304 ≥520 ≥205 min.40%
420 ≥635 ≥440 min.20%
431 ≥800 ≥600 min.10%
430 ≥450 ≥205 min.22%

Tolerance

Diameter
mm		  ISOf7
μm		 ISO f8
μm
φ=6 -10/-22 -10/-28
6<φ≤10 -13/-28 -13/-35
10<φ≤18 -16/-34 -16/-43
18<φ≤30 -20/-41 -20/-53
30<φ≤50 -25/-50 -25/-64
50<φ≤80 -30/-60 -30/-76
80<中≤120 -36/-71 -36/-90
120<φ≤180 -43/-83 -43/-106
180<φ≤250 -50/-96 -50/-122

 

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