Round bar from 30mm to 600mm Diameter
Flat and square bar from 30mm to 500mm Width
8mm to 300mm Thickness
*accept special shape
Hot rolling or hot forged
EAF →VD→LF→ESR Electro-Slag Remelting
Black
Grinding
Rough turned
Peeled
Polished
UT, size and surface for each pcs
Macrostructure
Ferritic Metallographic
Grain size
Nonmetallic inclusion
Etch test of tower sample
Annealed or high temperature temper
| Annealed | high temperature temper | Hardness |
| 800 to 900 Celsius, slow | 700 to 770 Celsius, fast | Max 223 HBW |
*Accept +QT delivery condition
| Chinese UNS | Chinese New Grade | Chinese Old Grade |
| S47010 | 15Cr12WMoV | 1Cr12W1MoV |
| C | Si | Mn | P | S | Ni | Cr | Cu | Mo | V | W |
| 0.12 to 0.18 | Max 0.50 | 0.50 to 0.90 | Max 0.030 | Max 0.020 | 0.40 to 0.80 | 11.00 to 13.00 | Max 0.30 | 0.50 to 0.70 | 0.15 to 0.30 | 0.70 to 1.10 |
| Type | Quench temperature | Temper temperature | Specified Plastic Elongation Strength | Tensile strength | Elongation | Reduction | Impact | Hardness |
| 1 | 1000 to 1050 Celsius, air, oil | 680 to 740 Celsius, air | Min 590 Mpa | Min 735 Mpa | Min 15 % | Min 45% | Min 27 KJ | 229 to 277 HBW |
| 2 | 1000 to 1050 Celsius, oil | 660 to 700 Celsius, air | Min 635 Mpa | Min 785 Mpa | Min 15 % | Min 45% | Min 27 KJ | 248 to 293 HBW |