China 80 mm Round Shape Hydraulic Pneumatic Seamless Smooth Bore Cylinder Tubes /Mill Factory Supplier Honed Tube Steel Seamless Pipe St 37/ St 52 / 1020, Find details about China Honing Tube Stock, Chrome Tube Stock from 80 mm Round Shape Hydraulic Pneumatic Seamless Smooth Bore Cylinder Tubes /Mill Factory Supplier Honed Tube Steel Seamless Pipe St 37/ St 52 / 1020
Honed tube for hydraulic cylinder | ||
Standard | DIN2391, EN10305, JIS G3445 ASTM A519 GB/T 8713 | |
Material | ST45, ST52, E355, E355SR, STKM13C, SAE1026,20#, Q235B, CK45… | |
Heat treatment | BK+S | |
Specification | Outer Diameter(mm) | Inner diameter(mm) |
40-480mm | 30-400 | |
I.D Tolerance | H8-H9 | |
Length | 3-9m(Customers usually choose the 4-5.8(m) | |
Straightness | 1-1000 | |
ID roughness | RA 0.4micron(max) | |
Technology | Honed& SRB (SKIVED AND ROLLER BURNISHED) | |
Scope | Honed tube for hydraulic cylinder ,swivel crane, injection machine and construction machine application |
Material | C | Si | Mn | S(≤) | P(≤) | Cr | Ni | Mo | Other |
20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | ti:0.02-0.20 | Cu≤0.25 |
45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | ti:0.02-0.20 | Cu≤0.25 |
Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.040 | 0.040 | V:0.02-0.15 | Nb:0.015-0.06 | Alt≥0.015 | |
16Mn | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.045 | 0.045 | V:0.02-0.15 | Nb:0.015-0.06 | 16Mn | |
25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | ≤0.25 | ≤0.25 | ||
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 | ||||
42SiMn | 0.39-0.45 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 | ||||
42CrMo | 0.38-0.45 | 0.50-0.80 | 0.50-0.80 | 0.025 | 0.025 | 0.90-1.20 | 0.15-0.25 |
Inner Diameter (mm) | ID Tolerance(mm) | |||
H8 | H9 | H10 | H11 | |
30 | +0.021/0 | +0.038/0 | +0.084/0 | +0.130/0 |
>30-50 | +0.025/0 | +0.039/0 | +0.100/0 | +0.160/0 |
>50-80 | +0.030/0 | +0.046/0 | +0.120/0 | +0.190/0 |
>80-120 | +0.035/0 | +0.054/0 | +0.140/0 | +0.220/0 |
>120-180 | +0.040/0 | +0.063/0 | +0.160/0 | +0.250/0 |
>180-250 | +0.046/0 | +0.072/0 | +0.185/0 | +0.290/0 |
>250-315 | +0.052/0 | +0.081/0 | +0.210/0 | +0.320/0 |
>315-400 | +0.057/0 | +0.089/0 | +0.230/0 | +0.360/0 |
BK | BKW | BKS | GBK | NBK | Q+T |
+C | +LC | +SR | +A | +N | |
Cold rolled | Cold drawn | Stress relieved | Annealed | Normalized | Quenched+ Tempered |