Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of 23mnnimocr5-4 steel bar for link chain in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
23MNNIMOCR5-4 bar for connecting rod chain is a high-quality steel, with high strength, high toughness, wear resistance and weldability and processability, widely used in the production of connecting rod chain.
（1）High strength and toughness:
It has high yield strength and good ductility, enabling it to withstand heavy loads and resist deformation. In addition, it has high impact resistance, which makes it suitable for use in harsh environments.
（2）23MNNIMOCR5-4 has excellent wear resistance:
It has a high surface hardness, which means it can withstand severe wear. This makes it ideal for use with chain links, as constant friction and rubbing can cause damage over time.
（3）The steel bar has good weldability and machinability, making it easy to process in the manufacturing process.
It can be easily welded and formed into different shapes and sizes, making it highly versatile.
Chemical composition
| C% |
si% max |
Mn% | P% |
S% max |
Cr% | Mo% | Ni% | Ai% |
Cu% max |
N% max |
| 0.20-0.26 | 0.25 | 1.10-1.40 | 0.020 | 0.020 | 0.40-0.60 | 0.50-0.60 | 0.90-1.10 | 0.020-0.050 | 0.25 | 0.012 |
| others | P+S max 0.035% | |||||||||
Mechanical properties DIN 17115
| Condition of delivery |
Cold-drawn +C |
Soft annealed or Cold-drawn + soft annealed +C+A |
Cold-drawn soft annealed and Cold-drawn +C+A+C |
Spheroidized +GKZ or Cold-drawn Spheroidized +C+GKZ |
Cold drawn spheroidized and Cold-drawn +C+GKZ+C |
| Rm N/mm2 | max 860 | max 790 | max 930 | max 710 | max 850 |
| HB 30 | max 255 | max 235 | max 275 | 150- 210 | max 250 |
| HV 10 | max 268 | max 247 | max 289 | max 221 | max 263 |
Hot rolled mechanical properties, values at room temperature for round 0 20 mm after quenching at 880°C in water and
tempering at 400*C DiIN 17115
|
size mm |
Testing at room temperature (longitudinal) | ||||
| R | Rp0.2 | A% | Z% | Kv | |
| ＜30 | N/mm² min. | N/mm² min. | min. | min. | J min. |
| 1180 | 980 | 10 | 50 | 40 | |
Similar steel grade & equivalent steel materials:
|
USA |
Japanese |
Gemany |
British |
France |
heat treatment |
Chinese |
|
ASTM&AISI&SAE |
JIS |
EN DIN |
EN BS |
EN NF |
ISO |
GB |
|
23MNNIMOCR5-4 1.6758 |
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Cr12Mo1v1 |
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we have sold A2 1.2379 86CRMOV7 1.2344 flat bar and forged round bar to germany,singapore,pakistan and so on,u can find some pictures below
23MNNIMOCR5-4 turned surface bar
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