Alloy Steel

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.

Technical Properties for Alloy Steel

Chemical Composition

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

Mechanical Properties

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

Alloy Steel

Alloy Steel

Alloy Steel Products

Elbow

Returns

Tee

Reducer

Stub End

Technical Properties for Alloy Steel

Chemical Composition

Mechanical Properties

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