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ASTM A335 Boiler Pipe

ASTM A335/A335M-15a Seamless Ferritic Alloy Steel Pipe for High Temperature Service

Application: This type tube is widely used for boiler,superheater and similar heat transfer equipments.

Standard: ASTM A335/ASME SA335, testing according to ASTM A530/ASME SA530

 

OD: 19-406.4 mm

WT:2.2-40 mm

Length: 15 meters(Max)

 

Fabricating process: Seamless & Cold drawn & Cold rolled

Heat treatment: Annealed & Normalized

Non-destructive test:  100% Eddy Current Test

Package: Bundle package or plywood box

 

Standead   Grade Chemical  Composition%
C Mn P S Si Cr Mo
ASME SA 335 P1 0.10-0.20 0.30-0.80 ≤0.025 ≤0.025 0.10-0.50 … 0.44-0.65
P5 ≤0.15 0.30-0.60 ≤0.025 ≤0.025 ≤0.50 4.00-6.00 0.44-0.65
P9 ≤0.15 0.30-0.60 ≤0.025 ≤0.025 0.50-1.00 8.00-10.0 0.90-1.10
P11 0.05-0.15 0.30-0.60 ≤0.025 ≤0.025 0.50-1.00 1.00-1.50 0.44-0.65
P12 0.05-0.15 0.30-0.60 ≤0.025 ≤0.025 ≤0.50 0.80-1.25 0.44-0.65
P22 0.05-0.15 0.30-0.60 ≤0.025 ≤0.025 ≤0.50 1.90-2.60 0.87-1.13
P91 0.08-0.125 0.30-0.80 ≤0.020 ≤0.010 0.20-0.50 8.00-9.50 0.85-1.05

 

Standead   Grade  Chemical Composition%
Tensile Strength(Mpa) Yield Strength(Mpa) Elongation(%)
ASME SA 335 P1 ≥380 ≥205 ≥30
P5 ≥415 ≥205 ≥30
P9 ≥415 ≥205 ≥30
P11 ≥415 ≥205 ≥30
P12 ≥415 ≥220 ≥30
P22 ≥415 ≥205 ≥30
P91 ≥585 ≥415 ≥20