TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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TORICH has NICE quality of 1020 Honed Hollow Piston Rods,ST52 Honed Hollow Piston Rods,Honed Hollow Piston Rods.
keyword: Honed Hollow Piston Rods
Type: Solid / Hollow
Material: CK45, 20MnV6,42CrMo4, 40Cr
D.: 40-400mm
W.T: ≥5mm
Alloy Or Not: Non-alloy
Length: Up To 12000mm According To Customer's Requirement
Place Of Origin: Zhejiang, China (Mainland)
Surface Treatment : Chromed, Nickeled
Heat Treatment: Annealed, QT
Regular sizes we can produce:
| CHEMICAL COMPOSITION(%) | ||||||||||
| Steel Grade | C% | Mn% | Si% | S% | P% | V% | Ni% | Cr% | Mo% | Cu% |
| 1010 | 0.07-0.13 | 0.3-0.6 | 0.17-0.37 | ≤0.015 | ≤0.025 | ≤0.08 | ≤0.15 | ≤0.15 | ||
| 1020 | 0.18-0.23 | 0.3-0.6 | 0.17-0.37 | ≤0.015 | ≤0.025 | ≤0.08 | ≤0.15 | ≤0.15 | ||
| ST52 | ≤0.18 | ≤1.7 | ≤0.5 | ≤0.025 | ≤0.03 | ≤0.15 | ≤0.5 | ≤0.3 | ≤0.1 | ≤0.3 |
| MECHANICAL PROPERTIES | ||||||||||
| Material | Tensile Strength Rm (Mpa) | Yield Strength Rel (Mpa) | Elogation A% | CHARPY | CONDITION | |||||
| 1010 | 335 | 205 | 24 | - | Normalized | |||||
| 1020 | 410 | 245 | 20 | - | Normalized | |||||
| ST52 | 470-630 | 345 | 20 | - | Normalized | |||||
| SUPPLY CONDITION | Ground and chrome plated |
| CHROME THICKNESS | 20 to 30 micron |
| SURFACE ROUGHNESS | Ra≤0.2 micron and Rt≤2 micro |
| TOLERANCE ON DIA | ISO f7 on the diameter |
| OVALITY | Half of the tolerance ISO f7 |
| STRAGHNESS | ≤0.2MM/M |
| SURFACE HARDNEDD | 850-1150 HV(vickers 100g) |
| COHESION | No craks,breaking or detaching after thermic shock (warming up at 3200 celsius degrees and cooling in water) |
| POROSITY | Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10 |
| CORROSION RESISTANCE | Test in natural salt spray according to ASTM B117-120hours |
| Results evaluation | accordin to ISO4540 RATING7-10 |
| WELDABILITY | Good |
| PACKING | Anti rust oil to be applied on material and each rod to be packed in paper sleeve |
| CERTIFICATE | All certificate related with material heat treatment and plating is required |
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