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Brand Name : | Huona |
Model Number : | 4j42 /Nilo42 |
Certification : | ISO 9001 |
Price : | US$30.00~50.00 |
Payment Terms : | L/C,Western Union,T/T,MoneyGram |
Supply Ability : | 10000 Tons/Year |
Delivery Time : | 5-21days |
MOQ : | 50-100 kgs per each size |
Grade and chemical composition | |||||||||||
Grade | Mass fraction (%) | ||||||||||
C | P | S | Mn | Si | B | Al | C0 | Ni | Cr | Fe | |
≤ | |||||||||||
4J42 | 0.05 | 0.020 | 0.020 | 0.80 | 0.30 | 0.10 | 1.0 | 41.5~42.5 | balance |
tensile strength for strips | |
status | tensile strength /MPa |
soft | <590 |
hard | >820 |
hardness of strip in deep punching status | ||
deep punching | thickness/mm | Hardness HV |
Fe-Ni-Cr | ≤190 | |
Fe-Ni | >2.5 | ≤190 |
≤2.5 | ≤165 |
heat treating regime and coefficient of linear expansion | |||||
Grade | Heat treatment on samples | a/(10-6/K) | |||
20-300°C | 20~400% | 20-450°C | |||
4J42 | Heat the sample to (900±20)°C in hydrogen atmosphere, keep the temperature for one hour, cool to below 200°C at the speed ≤5°C/min then discharge | 4.0~5.0 | 6.5~7.5 | ||
6.5~7.2 | 6.5~7.2 | ||||
9.2~10.0 | 9.2~9.9 |
coefficient of expansion | ||||||||
Grade | Average coefficient of expansion a/(10-6/K) | |||||||
20~100°C | 20~200°C | 20~300°C | 20~400°C | 20~450°C | 20~500°C | 20~600°C | ||
4J42 | 5.6 | 4.9 | 4.8 | 5.9 | 6.9 | 7.8 | 9.2 |
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