Metallurgy Machinery

?ISO9000 EN10305-1 ?Seamless Precision Steel Tube for Auto industry
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Quick?Detail:
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EN10305-1 Seamless Precisionsteel tubes Used in hydraulic & pneumatic cylinder ,automobile and other mechanical device .Feature: high precision and high brightness, the inner and outer surface of the tubes have high cleanness without oxid, mechanical properties of the final tubes also come out excellent, promising no leakage under high pressure, no deformation after cold-bent and no cracks when flaring and flattening, ensuring the efficient operation in all service.

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Standard: EN10305-1

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Grade: E235,E255,E355,C45E, E235C,C35E, ST35,ST45,ST37

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OD. Range:6mm – 114.3mm
Wall thickness: 1mm-15mm
Length: Max length 12M

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Type: Seamless

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Packaging detail: Bundles with plastic paper packaged or wooden box package

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Delivery date: 10-30days



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Description:
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The seamless precision steel tubes can be used for a wide range of precision mechanical spare for car and cylinder accord to standard DIN2391/ EN10305-1/ GB/T3639-2009To be used in hydraulic system, automobile and precision machinery parts for cars and cylinder.

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Standard: EN10305-1

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Grade: E235,E255,E355,C45E, E235C,C35E, ST35,ST45,ST37

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OD. Range:6mm – 114.3mm
Wall thickness: 1mm-15mm
Length: Max length 12M

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Type: Seamless

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Packaging detail: Bundles with plastic paper packaged or wooden box package

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Delivery status: BK(+C), BKS(+SR), BKW(+LC), GBK(+A), NBK(+N)



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Applications:
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hydraulic?system
automobile
precision?machinery?parts??for?cars?and?cylinder.?
Auto?industry
Oil?cylinder?tube
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Specifications:
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Grade and Chemical Composition ( ％ )

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Item | Grade
? | C
max | Mn | P
max | S
max | Si
max |
E235 | 1.0308 | 0.17 | ≥0..4 | 0.025 | 0.025 | 0.35 |
St45 | 1.0408 | 0.21 | ≥0.4 | 0.025 | 0.025 | 0.35 |
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E355 | 1.0508 | 0.22 | ≤1.6 | 0.025 | 0.025 | 0.55 |
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Mechanical properties

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item | grade | Cold finished (Hard)
(BK) | Cold finished
(Soft)
(BKW) | Cold finished and stress-relieved
(BKS) | Annealed (GBK) | Normalized
(NBK) |
Rm | A | Rm | A | Rm | ReH | A | Rm | A | Rm | ReH | A |
MPa | ％ | MPa | ％ | MPa | MPa | ％ | MPa | ％ | MPa | ％ |
1 | E235 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340-470 | 235 | 25 |
2 | ST45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
3 | E355 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490-630 | 355 | 22 |
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Competitive?Advantage:
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Good?Quality?and?services?but?competiveness?price.