QStE 380 TM refers to a specific high-strength, low-alloy (HSLA) steel grade. However, without additional contextual information or specifying the standard or country of reference, it is challenging to provide a direct equivalent for QStE 380 TM.
QStE380TM Chemical composition and Mechanical properties
| C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Cr | Ni |
|---|---|---|---|---|---|---|
| 0.12 | 0.50 | 1.50 | 0.025 | 0.020 | ||
| Mo | Al | Cu | Nb | Ti | V | Ce |
| ≤ 0.015% | ≤ 0.09% | ≤ 0.22 | ≤ 0.20 | |||
| N | Co | Pb | B | Other | ||
QStE380TM Mechanical Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 1158 | 25 | oil quenched, fine grained, tempered at 425°C |
| Yield Strength (Mpa) | 1034 | ||
| Elongation (%) | 15 | ||
| Reduction in Area (%) | 53 | ||
| Hardness (HB) | 335 | 25 | oil quenched, fine grained, tempered at 425°C |
HSLA steel grades have varying equivalents in different international standards. For example, similar grades that may be considered as equivalents to QStE 380 TM include:
ASTM A572 Grade 50
S355MC (EN 10149-2)
E355D (ISO 6930-1)
FeE355TM (UNI 8890)
It's important to consult specific standards, manufacturer's data, or industry specifications to obtain the precise equivalent grades for QStE 380 TM in a particular standard or country.
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