ASTM A106 Gr.B Steel Plate for Welded Pipe

ASTM A106 Gr.B Introduction:
A106 Gr.B is a seamless carbon steel pipe for high temperature.
A106 Gr.B steel is killed steel and should be smelted by one or more of the following methods: open hearth method, oxygen top-blown converter method or electric furnace method.

ASTM A106 Gr.B Heat Treatment Requirements:
The hot-finished tube does not need to be heat-treated; the cold-drawn tube should be heat-treated at a temperature of ≥650°C after the last cold-drawing process.

ASTM A106 Grade B Chemical Composition:

	Grade A	Grade B	Grade C
Carbon max. %	0.25	0.30*	0.35*
*Manganese %	0.27 to 0.93	*0.29 to 1.06	*0.29 to 1.06
Phosphorous, max. %	0.035	0.035	0.035
Sulfur, max. %	0.035	0.035	0.035
Silicon, min.%	0.10	0.10	0.10
Chrome, max. %	0.40	0.40	0.40
Copper, max. %	0.40	0.40	0.40
Molybdenum, max. %	0.15	0.15	0.15
Nickel, max. %	0.40	0.40	0.40
Vanadium, max.%	0.08	0.08	0.08

A106 Gr.B Mechanical Properties:

	Grade A	Grade B	Grade C
Tensile Strength, Minimum	48,000 psi	60,000 psi	70,000 psi
Yield Strength, min.	30,000 psi	35,000 psi	40,000 psi

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