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Honed tube for hydraulic cylinder |
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Standard |
DIN2391, EN10305, ASTM A519, GB/T 3639-200 |
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Material |
Q355B Q355D C20,ST52,E355 SAE1026.CK45 4130 4140 STKM 13C |
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Heat treatment |
BK+S |
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Specification |
Outer diameter(mm) |
Inner diameter(mm) |
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40-480mm |
30-400mm |
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I.D Tolerance |
H8-H9 |
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Length |
Fixed Length, Random Length(3--9m)or as requests of customers |
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Straightness |
0.5-1/1000 |
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ID roughness |
RA 0.1-0.8micron(max) |
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Technology |
Honed & SRB(SKIVED AND ROLLER BURNISHED ) |
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Scope |
Honed tube for hydraulic cylinder, swivel crane, injection machine and construction machine application |
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1. Chemical Composition |
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Steel grade |
Chemical composition % |
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C |
Si |
Mn |
P |
S |
Cr |
Ni |
V |
AI |
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≤ |
≥ |
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C20 |
0.17-0.24 |
0.17-0.37 |
0.15-0.65 |
0.035 |
0.025 |
0.250 |
0.250 |
/ |
/ |
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CK45 |
0.42-0.5 |
0.17-0.37 |
0.5-0.8 |
0.025 |
0.025 |
0.250 |
0.300 |
/ |
/ |
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Q355B |
≤0.2 |
≤0.5 |
1.0-1.6 |
0.030 |
0.030 |
0.030 |
0.250 |
0.080 |
0.015 |
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Q355D |
≤0.2 |
≤0.5 |
1.0-1.6 |
0.030 |
0.025 |
0.250 |
0.250 |
0.150 |
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E355(ST52) |
≤0.22 |
≤0.55 |
≤1.6 |
0.025 |
0.025 |
0.250 |
0.250 |
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/ |
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SAE1026 |
0.22-0.28 |
0.15-0.35 |
0.6-0.9 |
0.040 |
0.050 |
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4130 |
0.28-0.33 |
0.15-0.35 |
0.4-0.6 |
0.040 |
0.040 |
0.80-1.10 |
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4140 |
0.36-0.43 |
0.15-0.35 |
0.705-1.0 |
0.040 |
0.040 |
0.80-1.10 |
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2.Mechanical Property: |
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Delivery condition |
Cold finished(hard)(BK) |
Cold drawn and stress-relieved(BK+S) |
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Steel grade |
Rm MPa |
Elongation A5% |
Rm MPa |
ReH Mpa |
Elongation A5% |
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C20 |
≥550 |
≥5 |
≥520 |
≥375 |
≥15 |
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CK45 |
≥645 |
≥5 |
≥600 |
≥520 |
≥10 |
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Q355B |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
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Q355D |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
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E355(ST52) |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
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SAE1026 |
≥640 |
≥5 |
≥600 |
≥520 |
≥15 |
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3.Tolerance: |
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Tolerance |
I.D Tolerance |
Tolerance of wall thickness |
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Size of I.D. |
H8 |
H9 |
H10 |
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30 |
0.033 |
0.052 |
0.084 |
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>30-50 |
0.039 |
0.062 |
0.1 |
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>50-80 |
0.046 |
0.074 |
0.12 |
<120mm(O.D) |
±5% |
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>80-120 |
0.054 |
0.087 |
0.14 |
≥120mm up to 210mm |
±7.5% |
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>120-180 |
0.063 |
0.1 |
0.16 |
>210mm |
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±10% |
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>180-250 |
0.072 |
0.115 |
0.185 |
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>250-315 |
0.081 |
0.13 |
0.21 |
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>315-400 |
0.089 |
0.14 |
0.23 |
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| Registration Date | 2022/10/27(Year/Month/Date) |
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| Buyer / Seller in EC21 | Seller |
| Business Type | Manufacturer |
| Year established | 2009 |
| Employees total | 51 - 100 |
| Annual revenue | USD 5,000,001 - 10,000,000 |
| Company | Jiangsu YIngnaisi Machinery Manufacturer Co.,Ltd |
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| Address | Panjia industral zoneChangzhouJiangsu213000China |
| Phone | 86 - 0519 - 86549398 |
| Homepage | www.cnhengjiu.com |
| Contact | Mary shi / sales manager |