HSLA
High Strength Low Alloy
Ultra High Strength Properties
| Product | GS80 | GS125 | GS150 |
| Min. YS | 80 KSI | 125 KSI | 150 KSI |
| Typical YS | 90 KSI | 125-135 KSI | 150-160 KSI |
| Typical UTS | 100 KSI | 125-135 KSI | 160-170 KSI |
| Typical Elong. | 18% min. | 2% min. | 1.5% min. |
| Typical Hardness | 90 Rb Min. | 95-105 Rb | 29-33 Rc |
Forming
Approximate values – inside bending radius
| Bend | GS80 | GS125 | GS150 |
| 90° Transverse | 1T | 1 to 3T | 1 to 3T |
Gauges
| GS80 | 0.020″ to 0.165″ |
| GS125 | 0.015″ to 0.150″ |
| GS150 | 0.015″ to 0.125″ |
The General Composition of HSLA Steel
- Carbon: .15% max
- Manganese: varies by strength level from .60% max for standard HSLA Grade 40 to 2.50% max for Greer Steel GS150
- Sulfur & Phosphorus: .025% max
- Micro-Alloying elements (Nb, V, Ti, etc) are added in combination to achieve the specified minimum strength level.
Standard HSLA products are available in strength ranges varying from 35ksi min yield to 80ksi min yield.
Typical HSLA Steel Properties
| HSLA | Grade 35 | Grade 50 | Grade 60 | Grade 80 |
| Yield | 35 ksi min | 50 ksi min | 60 ksi min | 80 ksi min |
| Tensile | 45 ksi min | 60 ksi min | 70 ksi min | 90 ksi min |
| Elongation | 22% min | 20% min | 18% min | 12% min |
| Grade | 1008/1010 5 temper | 1008/1010 3 temper | 1008/1010 1 temper | 1050 Annealed | 1050 Full Hard |
| Yield | 24-35 ksi | 35-45 ksi | 64-84 ksi | 43-55 ksi | 100-110 ksi |
| Tensile | 38-50 ksi | 45-65 ksi | 80-100 ksi | 65-75 ksi | 110-120 ksi |
| Elongation | 33-45% | 13-27% | 1-5% | 19-28% | 3-6% |
Source: Datasheet on GS HSLA steels.
