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Cold drawn St45 20# Mild Steel Tubing Honing Steel Pipes For Hydraulic Cylinder , DIN 2391 EN 10305
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Cold drawn St45 20# Mild Steel Tubing Honing Steel Pipes For Hydraulic Cylinder , DIN 2391 EN 10305

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Cold drawn St45 20# Mild Steel Tubing Honing Steel Pipes For Hydraulic Cylinder , DIN 2391 EN 10305

 

 

Quick Detail:

 

Products: Hydraulic cylinder tubes / Precision steel tube

Standard: DIN 2391 / EN 10305 /GB8713-88 / GB/T3639-2000

Grade: St52 / E355 / St45 / SAE1026 / 20# / 27SiMn
SIZE:(mm)

OD: 45mm ~ 500mm
WT: 3mm ~ 50mm

 

 

Description:

 

1. Variety

Processing form

I.D.mm

Length

Straightness

I.D.tolerance

I.D.Roughness(RA)

Cold-rolled

30-100

≤24M

 

0.3-1.0/1000

H8-H10

0.4-1.6um

Cold-drawn

30-250

≤24M

H8-H10

0.8-1.6um

Hone

40-500

≤24M

H8-H9

0.4-0.8um

SRB

50-250

≤24M

H8

0.1-0.4um

2. Material Specification and Ref. Document  

ST52,BK+S OR NBK,DIN2391 

OD:45-50mm WT:3-50mm

 

3. Chemical Compisition (%)

Steel grade

Chemical composition,%

C

Si

Mn

P

S

Cr

≤

St45

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.250

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Mr. Charlie Zhu
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Huacheng Industry Pipe Making Corporation.
337 Renmin(E), Tangqiao Town, Zhangjiagang City, Nanjing, Jiangsu, China (Mainland)
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