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Name : 20MNV6/280X Alloy seamless Steel Pipes with high yield and tensile strength due to the micro alloying effect
Principal application fields :
Ferritic pearlitic steel:
20MnV6 is a carbon-manganese steel micro alloyed with vanadium, characterized by excellent machinability and weldability with high yield and tensile strength due to the micro alloying effect of the vanadium. The low carbon content and the vanadium addition allows surface hardening by carburizing or nitriding. It will also respond to induction hardening with moderate improvement in tensile and yield strength.
20MnV6 is used extensively by all industry sectors for a wide range of applications utilizing its considerable machinability.
Typical applications are: Chrome plating, cylinders, conveyor rolls, hollow shafts, nuts, rings.
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 | ||
| ST52 | 0.22 | 1.6 | 0.55 | 0.035 | 0.04 | ||
| 20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | 0.035 | 0.035 | 0.10-0.20 | |
| 42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | 0.03 | 0.03 | 0.90-1.20 | |
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | 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
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 8-1
12. CORROSION RESISTANCE Test in natural salt spray according to ASTM B 117-72hours
Results evaluation according to ISO 4540 RATING 7-10
13. WELDABILITY : Good
14. PACKING : Anti rust oil to be applied on material and each rod to be packed in paper sleeve
15. CERTIFICATE : All certificate related with material heat treatment and plating is required
20MNV6/280X Alloy seamless Steel Pipes Pictures