Designers, engineers, and plant operators strive to reduce weight and increase the efficiency of equipment. There are significant benefits to be had by using high strength quenched and tempered steels for maximum structural performance in extreme working environments.
We often find that this type of material is called different things by different engineers. Plate to this specification and grade is variously described as:
High Strength Quenched and Tempered Steel Plate
High Yield Quenched and Tempered Steel Plate
High Strength Structural Steel Plate,
High Yield Structural Steel Plate
High Strength Low Alloy Steel Plate
HSLA
Chemical Composition – RQT® 701 Content % (ladle analysis), maximum - plates from 8 mm to 130 mm thick
| C | Si | Mn | S | P | Cr | ||
| 0.2 | 0.5 | 1.6 | 0.01 | 0.025 | 1 | ||
| Mo | Nb | V | Ni | Cu | B | ||
| 0.7 | 0.06 | 0.08 | 1.5 | 0.4 | 0.004 | ||
| Maximum Ladle CEV (%) | |||
| 8 mm to 30 mm thick | 0.43 | ||
| over 30 mm to 40 mm thick | 0.55 | ||
| over 40 mm to 100 mm thick | 0.59 | ||
| over 100 mm to 130 mm thick | 0.61 | ||
| 8 to 70 mm thick | over 70 to 130 mm thick | |||
| Minimum Yield Strength (Mpa) | 690 | 630 | ||
| Tensile Strength (Mpa) | 790 - 930 | 690 - 930 | ||
| Minimum Elongation 50 mm Guage (%) | 18 | 18 | ||
| Minimum Average Impact Energy | 30 J @ -40°C | 30 J @ -40°C | ||
| Minimum Individual Impact Energy | 21 J @ -40°C | 21 J @ -40°C | ||
| Place of Origin | Not Given |
| Minimum Order Quantity | Not Given |
| Supply Ability | Not Given |
| Packaging Details | Not Given |
| Delivery Details | Not Given |
Not Given
