We have a progressive heart and outstanding technical personnel. We will provide a variety of Ck45 Cold Drawn Tube, Uniform thickness 4140 tubes, Ck20 Honed Tube for customers all over the world. Since our establishment, we have been advocating the service concept of 'respect ourselves and respect customers', and form loyal partners with customers at home and abroad to develop together and create brilliant industry together! Our company has formed partnership with famous brand manufacturers to get their technical support, technical training and the latest information in time, so as to improve the professional quality and work level of technical personnel. Our company takes science and technology as the guide, fully implements modern management. Give us a chance, we will be full of enthusiasm, extremely professional work attitude and dedication to serve you.
Hard Chrome Plated Pipe Bar Introduction
Chrome plated Honed Tubes are presicion tubes with smooth inside and with chrome plated , they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are produced according to seamless cold drawn tubes for precision application standard GB/T3639-2009 , EN10305 or DIN2391 standard. Material SAE1020, 20#, ST45, CK45, ST52, E355 tubes and so on for you to choose. IF you are looking for chrome plated tubes for hydraulic cylinder pipes or pneumatic cylinder tubes, please contact us without any hesitation.
Hard Chrome Plated Pipe Bar technical parameters and Details
Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.
Chrome thickness: usually 15 to 20 microns.
Original: Jiangsu, China
Certification: ISO9001.
Material: SAE1020, 20#, ST45, CK45, ST52, E355
Payment term: TT, LC
Delivery date: usually 20 to 40 days.
Packing: packed in bundle, oiled inside, with caps on both ends.
Market: Middle East/ Africa/Asia/South America/Europe/North America
MOQ: Depends on exact size and material.
CK45 quenched and tempered hard chrome plated steel bar
For bar / rods:
1. CHEMICAL COMPOSITION
Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
CK45 | 0.42-0.50 | 0.50-0.80 | ≤0.04 | ≤0.035 | 0.035 | ≤ 0.25 | |
ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | ||
20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 |
42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 |
40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 |
2. MECHANCIAL PROPERTIES
Material | T.S N/MM2 | Y.S N/MM2 | E%(MIN) | CHARPY | CONDITION |
CK45 | 610 | 355 | 15 | >41J | NORMALIZE |
CK45 | 800 | 630 | 20 | >41J | Q + T |
ST52 | 500 | 355 | 22 | NORMALIZE | |
20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE |
42CrMo4 | 980 | 850 | 14 | >47J | Q + T |
40Cr | 1000 | 800 | 10 | Q + T |
3. SUPPLY CONDITION
Ground and chrome plated , induction, quenched and tempered
4. CHROME THICKNESS
20 to 30 micron
5. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micro
6. TOLERANCES ON DIA
ISO f7 on the diameter
7.OVALITY
Half of the tolerance ISO f7
8. STRAIGHTNESS
≤0.2MM/M
9. SURFACE HARDNESS
850-1150HV (vickers 100g)
10.COHESION
No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling in water)
11 .POROSITY
Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
12. CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-72hours
Results evaluation according to ISO 4540 RATING 7-10
13. PACKING
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
For our company, the service quality of customer relationship is as important as the technical quality of products. Therefore, customers are confident in our ASTM A106b Seamless Steel Pipe. Looking back on the past and looking forward to the future, we will continue to introduce new innovations with strict requirements. We will build a dynamic and competitive brand enterprise, and cooperate with customers at home and abroad with a pragmatic attitude to create a better tomorrow.
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