Tham khảo tài liệu 'materials science and engineering handbook part 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Table 167YIELD Strengthof Ductile Irons Specification Number Grade or Class Yield Strength MPa ASTM A395-76 ASME SA395 60-40-18 276 ASTM A476-70 d SAE AMS5316 80-60-03 414 ASTM A536-72 MIL-1-11466B MR 60-40-18 276 65-45-12 310 80-55-06 379 100-70-03 483 120-90-02 621 SAE J434C D4018 276 D4512 310 D5506 379 D7003 483 MIL-I-24137 Ships Class A 310 Class B 207 Class c 172 Source data fronASM Metals Reference Book Second ẸíAtÌKMrican Society for Metals Metals Park Ohio 44073 p169 1984 . 001 CRC Press LLC Table 168YIELD Strength OF MalleableIron Castings Specification Number Grade or Class Yield Strength MPa Ferritic ASTM A47 A338 ANSI FED QQ- I- 666c 32510 224 35018 241 ASTM A197 207 Pearlitic and Martensitic ASTM A220 ANSI MIL- I- 11444B 40010 276 45008 310 45006 310 50005 345 60004 414 70003 483 80002 552 90001 621 Automotive ASTM A602 SAE J158 M3210 224 M4504 a 310 M5003 a 345 M5503 b 379 M7002 b 483 M8501 b 586 a Air quenched and tempered b Liquid quenched and tempered Source data fronASM Metals Reference Book Second ẸíAtÌKMrican Society for Metals Metals Park Ohio 44073 p171 1984 . 001 CRC Press .