seamless hot-rolled steel tube for hdraulic pillar service
USD $700 - $900 /Metric Ton
Min.Order:20 Metric Tons
Shandong Zhongzheng Steel Pipe Manufacturing Co., Ltd.
SEAMLESS HOT-ROLLED STEEL TUBES FOR HYDRAULIC PILLAR SERVICE
APPLICATION:Used in making the coal mine hydraulic support and pillar other hydraulic equipment
Dimension Tolerances
PIPE SIZE (mm) | TOLERANCES(%) | |
OD | ±1 | |
WT | ≤20 | ±12.5 |
>20 | +12.5, -10 |
Mechanica Properties
Grade | Sample Heat Treatment | Mpa Tensile Strength | Mpa Yield Strength | % Eongation | %Impact Energy | Aku2 J Impact | HBHardness ≤MAX |
20 35 45 |
| 400 510 590 | 245 305 335 | 20 17 14 |
|
|
|
27SiMn | 920°C±20°C Waterquenching, 450°C±50°C Temper; Coolant:oil or water |
980 |
835 |
12 |
40 |
39 |
217 |
Chemical Composition
Grade | %Chemical composition | Nb | |||||||
C | Si | Mn | P≤ | S≤ | Cr≤ | Ni≤ | Cu≤ | ||
20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.20 |
|
35 | 0.32-0.40 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.20 |
|
45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.20 |
|
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.1-1.4 | 0.035 | 0.035 | 0.30 | 0.25 | 0.30 |
|
Products can be also supplied according to the standard of ASTM A519, DIN 1629,JIS G 3473
Should any of these items be of interest to you, please let us know. We will be happy to give you a quotation upon receipt of your detailed requirements.
We look forward to receiving your enquires soon.
Sincerely