China ASTM A335 P11 Boiler Tube Cr-Mo Alloy Steel Pipe for Superheater And Heat Exchanger for sale

ASTM A335 P11 Boiler Tube Cr-Mo Alloy Steel Pipe for Superheater And Heat Exchanger

Price Negotiable

Price: Negotiable

MOQ: 500 KGS

Delivery Time: Depends on order quantity

Brand: YUHONG

Product Description

ASTM A335 P11 Boiler Tube Cr-Mo Alloy Steel Pipe for Superheater And Heat Exchanger

ASTM A335 P11 steel pipes are a well-known standard and material for boiler tubes. Certain components in boilers operate under high temperature and pressure, such as superheaters, reheaters, main steam piping, and headers.

The properties of P11 material perfectly meet the requirements of these critical components.

It maintains sufficient strength even under the high temperatures of boiler operation.

ASTM A335 P11 steel pipes are widely used in boilers and pressure vessels. They are also commonly used as the base tube for fin tubes.

Chemical Composition (%)
Element	Standard Requirement (≤)	Typical Value / Note
Carbon (C)	0.15 max	0.09–0.13
Manganese (Mn)	0.30–0.60	0.40–0.60
Phosphorus (P)	0.025 max	0.020 max
Sulfur (S)	0.025 max	0.015 max
Silicon (Si)	0.25–1.00	0.50–0.80
Chromium (Cr)	8.00–10.00	8.50–9.50
Molybdenum (Mo)	0.90–1.10	0.95–1.05
Iron (Fe)	Balance	Balance
Others	—	Residuals

Mechanical Properties
Property	Standard Requirement	Note / Condition
Tensile Strength, min	415 MPa (60 ksi)
Yield Strength, min	205 MPa (30 ksi)	0.2% offset
Elongation in 2 in (50 mm), min	30%	For wall thickness ≥ 0.007 in (0.18 mm)
Hardness, max	179 HBW	Brinell Hardness (typical)
Heat Treatment	Full Anneal	Or normalized and tempered