Piiteräsmateriaali tulee pääasiassa Japanista ja Kiinasta.
| Steel mill | Grade |
|---|---|
| JFE | 超级铁芯 Super Core / 10JNEX900 / 10JNHF600 / 10JNRF / 15JNSF950 / 20JNEH1200 / 20JNEH1500 / 20JNHF1300 |
| Nippon Steel | 25HX1300 /27HX1500 / 30HX1500 / 35HXT680T / 35HXT780T / 50HXT590T / 50HXT780T |
| Nikkindenji | ST-050 / ST-080 / ST-100 / ST-150 / GT-040 / GT-050 / GT-080 / GT-100 |
| CHINA STEEL | 15CS1200HF / 20CS1200HF / 20CS1500HF / 25CS1500HF/30CS1800HF |
| BAOSTEEL | B15AT1000/ B20AT1200 /B20AT1500/ B20AV1200 /B20AV1300 / B25AV1300/B27AV1400/ B30AV1500/ B35AV1700/B35AV1800/ B35AV1900/B35AV2000/B35AV2100/ B20AHV1200/B20AHV1300/ B27AHV1400/B30AHV1500/ B35AHV1700/B35AHV1900/ B25AHV1300M/B27AHV1300M/ B27APV1400/B30APV1500/ B35APV1700/B35APV1900/ B35AHS500/ B35A250-Z/B35A270-Z/ B50A250/B50A270/B50A290/B50A310 |
| WISCO SILICON STEEL | 15WT1550/20WTG1300/20WTG1500 / 27WGP1400/27WGP1500/ 30WGP1500/30WGP1600/ 30WGP1700/30WGP1800/ 35WGP1700/35WGP1800/ 35WGP1900/35WGP2100/ 20WTGH1300/20WTGH1500/ 27WGPH1500/27WGPH1800/ 30WGPH1500/30WGPH1800/ 35WGPH1700/35WGPH1900 |
| TISCO SILICON STEEL | 20TWVP1150/20TWV1200/20TWVG1500/ 25TWV1300/25TWV1300S/27TWV1400/ 27TWV1400S/30TWV1500/30TWV1500S/ 35TWV1700/35TWV1900/ 35TWG230/35TWG250/35TWG300/ 50TWG250/50TWG290/50TWG350 |
| SHOUGANG SILICON STEEL | 25SWYS500/35SWYS500/ 35SWYS600/35SWYS900/50SWYS650/65SWYS600/ 20SW1200/20SW1500/27SW2300/30SW2700/ 35SW230/35SW250/35SW270/35SW300/ 35SW330/35SW360/35SW400/35SW440/ 50SW1300/50SW230/50SW250/50SW270/50SW290/ 50SW310/50SW330/50SW350/50SW400/50SW470/ 50SW530/50SW600/50SW700/50SW800/50SW1000/ 65SW1000/65SW1300/65SW600/65SW700/65SW800/ 50SWG470/50SWH470/50SWH600/50SWH800/ 35SWR300/50SWR1300/50SWR350 |
