Cold Drawn Welded Black Steel Pipe
Specifications
1.Cylinder tubes suitable for honing,skiving and roller burnishing2.Grade:cold drawn welded tubes
3.Treatment:+SR
Commodity name: Cold drawn welded black steel pipe from Italian Marcegaglia (China) Plant
Hydraulic cylinder dom tubes
Dimensions tolerance:
Ident |
OD |
ID |
WT |
||||
|
Max |
Min |
Tol |
Max |
Min |
Tol |
WT |
|
(mm) |
(mm) |
(mm) |
(mm) |
(mm) |
(mm) |
(mm) |
91 |
92.34 |
92.09 |
0.25 |
77.23 |
77 |
0.23 |
7.55 |
110 |
111.44 |
111.14 |
0.3 |
96.29 |
96 |
0.29 |
7.57 |
129 |
130.49 |
130.14 |
0.35 |
115.35 |
115 |
0.35 |
7.57 |
149 |
150.59 |
150.14 |
0.45 |
134.4 |
134 |
0.4 |
8.08 |
169 |
170.72 |
170.17 |
0.55 |
154.46 |
154 |
0.46 |
8.11 |
191 |
192.82 |
192.17 |
0.65 |
175.53 |
175 |
0.53 |
8.62 |
214 |
215.99 |
215.19 |
0.8 |
197.59 |
197 |
0.59 |
9.15 |
214 |
216.4 |
215.6 |
0.8 |
197.59 |
197 |
0.59 |
9.35 |
Ident |
OD(mm) |
ID(mm) |
WT (mm) |
||||
|
Max |
Min |
Tol |
Max |
Min |
Tol |
WT |
110 |
111.47 |
111.17 |
0.3 |
90.27 |
90 |
0.27 |
10.5925 |
150 |
151.59 |
151.14 |
0.45 |
134.4 |
134 |
0.4 |
8.5825 |
172 |
173.72 |
173.17 |
0.55 |
155.47 |
155 |
0.47 |
9.105 |
196 |
197.82 |
197.17 |
0.65 |
178.53 |
178 |
0.53 |
9.615 |
221 |
222.99 |
222.19 |
0.8 |
202.61 |
202 |
0.61 |
10.1425 |
221 |
223.4 |
222.6 |
0.8 |
202.61 |
202 |
0.61 |
10.3475 |
Mechanical properties
1.Technical Specification: suitable for SK+RB/Honed or telescopic cylinder tube
2. Grade:E355
3.Tensile strength:>640
4.Yield strength:>540
5.Elongation:>15%
6.Eccentricity:3%
7.Straightness:0.5mm/1000mm or as clients request
8.Testing:EC+US=SEP1915+SEP1925
9.Impact value:-20C=27.5Jas clients request
10.Type :Telescopic cylinder tubes
11.Supply conditions:+SR
12.Surface finishing:OD:Smooth as drawn(EN 10305-2)
ID:roughness Ra<1.6u max
with stock allowance(for honing or skiving and roller burbishing)
13.Tolerance:H12 max
14.Dimensions on request, and based on customer drawings
15. Shape: Round and Square
Delivery conditions:
- Standard packing with plastic caps and strapped bundes.,standard weight approx 1500kg
- Commercial length 5000-8000mm,custom lengths upon request
- Surface protection
- Marking:MM E355 OD× ID EN 10305-2
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Finished Products
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