A335 Gr. P11 24 inch Schxxs Alloy Steel Pipe Annealed
Chromium and molybdenum are important elements of P11. Chromium, or chrome, improves high-temperature strength, increases oxidation resistance and raises the tensile, yield and hardness at room temperatures. Molybdenum increases the strength, elastic limit, resistance to wear, impact qualities and hardenability. It increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is also the most effective additive for increasing high temperature creep strength, or creep resistance. It also enhances the corrosion resistance of steel and inhibits pitting.
P11 Pipe Chemical Requirements
- Carbon - 0.05% - 0.15%
- Manganese - 0.30% - 0.60%
- Phosphorus, max - 0.025%
- Sulfur, max - 0.025%
- Silicon - 0.50% - 1.00%
- Chromium - 1.00% - 1.50%
- Molybdenum - 0.44% - 0.65%
Enhanced properties of A335/SA335 P11
- Toughness
- Strength
- Hardness
- Wear resistance
- Hardenability
- Hot hardness
- Corrosion resistance
Heat treating can be required to achieve some of these properties.
P11 Pipe Specifications
- Tensile strength, min, PSI, (MPa) - 60,000 (415)
- Yield Strength, min, (MPa) - 30,000 (205)
P11 Pipe Applications
Due to the ferrimagnetic characteristics of iron, a few steel alloys in A335 P11 pipes can be used in applications where their reactions to magnetism are important. This includes transformers and electric motors. P11 is also a popular grade for many different applications such as:
- Spacecraft
- Turbine blades of jet engines
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From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
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After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.
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