Difference between P11 and T11 in Alloy Steel pipe

December 27, 2018

Difference between P11 and T11 in Alloy Steel pipe www.bdpipefitting.com

P11 alloy steel pipe and T11 alloy steel pipe difference

P11 alloy steel pipe is the biggest advantage of 100% recycling, in line with environmental protection, energy saving, resource conservation national strategy, national policy to encourage the expansion of high-pressure p11 alloy pipe applications.

ASTM A335 P11 Alloy steel pipe Chemical Composition

Grade	Chemical Composition(%)
Grade	C	Mn	P	S	Si	Cr	Mo
ASTM A335 P11	≤0.015	0.30-0.60	≤0.025	≤0.025	≤0.50	4.00-6.00	0.45-0.65

ASTM A335 P11 Alloy steel pipe Mechanical property

Grade	Mechanical property
Grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)
ASTM A335 P11	≥415	≥205	≥30

T11 alloy steel pipe is low hardenability cold work die general steel and carbon content of 0.6% or more of high carbon steel. The advantages of the steel is good machinability, with high hardness and toughness, but the hardenability is low, quenching deformation. Because the steel contains less alloying elements, low tempering resistance, hardened layer of shallow, and thus lower carrying capacity. With high hardness and wear resistance, grain growth sensitivity is small.

ASTM A213 T11 Chemical Composition

Grade	Chemical Composition(%)
Grade	C	Mn	P	S	Si	Cr	Mo
ASTM A213 T11	≤0.15	0.30-0.60	≤0.025	≤0.025	0.50-1.00	1.00-1.50	0.44-0.65

ASTM A213 T11 Mechanical property

Grade	Mechanical property
Grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)	Hardness(HB)
ASTM A213 T11	≥415	≥205	30	≤179

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