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27SiMn seamless cold drawn steel tube, with black annealed out surface
Categories：Steel tubes
Model No.:AISI 1020/S20C
Dimension: O.D 20mm-520mm, I.D 12-510 mm.
I.D tolerance (mm): H7-H10.
Roughness(I.D): ≤0.3μm.
Straightness: 0-0.60mm/meter.
MOQ: 1.0-3.0 Tons
1020 / S20C Hydraulic Cylinder Tube , High Precision Skiving Pipe – Honed Steel Tubing
Application
Hydraulic Cylinder, hydraulic Jack, hydraulic oil cylinder, pneumatic cylinder, swivel crane, injection machine, petrifaction oil pump, coal mine, engineering machinery, crane and transport machinery, auto transmission axes, plastic machinery, engineering machinery, crane and transport machinery, auto transmission axes, plastic machinery, hydraulic oil cylinder, pneumatic cylinder, absorber, spin printing and dyeing.
Quality Standard
-DIN 2391 Seamless Precison Steel Tubes
-EN10305 Steel Tubes for Precision Applications Seamless Cold Drawn Tubes
Chemical Composition(%)
Steel Grade C Si Mn P S
1020 0.18-0.23 / 0.30-0.60 0.040 max 0.050 max
Tolerance
Inner Diameter(mm) | H7 | H8 | H9 | H10 |
10< ID≤ 18 | -0,+0.018 | -0,+0.027 | -0,+0.043 | -0,+0.070 |
18< ID≤ 30 | -0,+0.021 | -0,+0.033 | -0,+0.052 | -0,+0.084 |
30< ID≤ 50 | -0,+0.025 | -0,+0.039 | -0,+0.062 | -0,+0.100 |
50< ID≤ 80 | -0,+0.030 | -0,+0.046 | -0,+0.074 | -0,+0.120 |
80< ID≤ 120 | -0,+0.035 | -0,+0.054 | -0,+0.087 | -0,+0.140 |
120< ID≤ 180 | -0,+0.040 | -0,+0.063 | -0,+0.100 | -0,+0.160 |
180< ID≤ 250 | -0,+0.046 | -0,+0.072 | -0,+0.115 | -0,+0.185 |
250< ID≤ 315 | -0,+0.052 | -0,+0.081 | -0,+0.130 | -0,+0.210 |
315< ID≤ 400 | -0,+0.057 | -0,+0.089 | -0,+0.140 | -0,+0.230 |
400< ID≤ 500 | -0,+0.063 | -0,+0.097 | -0,+0.155 | -0,+0.250 |
Delivery Condition
+BK: Cold Finished(Hard), +BKW: Cold Finished(Soft), +BKS: Cold Finished and Stress Relieved, +GBK: Annealed, +NBK: Normalized.
Capacity
1,000 ton per month.
Test
Chemical analysis, Mechnical analysis, Roughness, Straightness, Surface quality and dimension report.
Package
Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.
Mill Test Certificate
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
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