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ALLOY STEEL
Engineered with chromium, molybdenum and other alloying elements for increased strength, hardness, wear resistance and toughness.
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Strength • Hardness • Toughness
Alloy steel is a type of steel alloyed with several elements such as molybdenum, manganese, nickel, chromium, vanadium, silicon, and boron.
These alloying elements are added to increase strength, hardness, wear resistance, and toughness. The amounts of alloying elements may vary between 1 and 50%. Alloy steels may be classified into two groups: low alloy steel and high alloy steel. The boundary between low alloy and high alloy steel is commonly accepted as 5% alloying element. For all practical purposes in the oil and gas industry, alloy steel means low alloy steel. We are specialized in manufacturing pipe fittings such as reducers, elbow, tee, bend, stub end etc.
Explore our range of alloy steel pipe fittings manufactured for demanding industrial and oil & gas applications.
Chemical composition and mechanical properties for alloy steel grades used in industrial pipe fittings and demanding applications.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A234 WP5 | ≤0.15 | ≤0.6 | ≤0.5 | ≤0.04 | ≤0.03 | 4–6 | 0.44–0.65 |
| A234 WP9 | ≤0.15 | ≤0.6 | 1.00 | ≤0.03 | ≤0.03 | 8–10 | 0.90–1.10 |
| A234 WP11 | 0.05–0.2 | 0.3–0.8 | 0.5–1 | ≤0.030 | ≤0.030 | 1–1.5 | 0.44–0.65 |
| A234 WP22 | 0.05–0.15 | 0.3–0.6 | ≤0.5 | ≤0.04 | ≤0.04 | 2–2.5 | 0.87–1.13 |
| A234 WP91 | 0.08–0.12 | 0.3–0.6 | 0.2–0.5 | ≤0.02 | ≤0.015 | 8–9.5 | 0.85–1.05 |
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation % |
| A234 WP5 | 415–585 | ≥205 | ≥20 |
| A234 WP9 | 380 min | 585 min | ≥30 |
| A234 WP11 | 415–585 | ≥205 | ≥20 |
| A234 WP22 | 415–585 | ≥205 | ≥20 |
| A234 WP91 | ≥590 | ≥415 | ≥20 |
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