Chemical Composition Element Content (wt. %) C 0.05–0.10 Si 1.40–2.00 Mn ≤0.80 P ≤0.040 S ≤0.030 Cr 20.0–22.0 Ni 10.0–12.0 Mo — N 0.14–0.20 Other Ce: 0.03–0.08; Fe: Balance

Mechanical Properties Condition Tensile Strength Yield Strength (0.2%) Elongation Hardness Solution annealed, room temperature reference ≈700 ≈355 ≈35 ≈≤220 HB

Industrial furnaces Heat-treatment equipment Petrochemical plants Combustion systems Burner components High-temperature process piping

Chemical Composition Element Content (wt. %) C 0.05–0.10 Si 1.40–2.00 Mn ≤0.80 P ≤0.040 S ≤0.030 Cr 20.0–22.0 Ni 10.0–12.0 Mo — N 0.14–0.20 Other Ce: 0.03–0.08; Fe: Balance

Mechanical Properties Condition Tensile Strength Yield Strength (0.2%) Elongation Hardness Solution annealed, room temperature reference ≈700 ≈355 ≈35 ≈≤220 HB

Industrial furnaces Heat-treatment equipment Petrochemical plants Combustion systems Burner components High-temperature process piping

253MA Stainless Steel Round Pipe

Grade: 253MA/S30815

Size:

Seamless: 6mm*1mm-720mm*50mm

Welded: 12mm*0.5mm-2000mm*100mm

Coiled: 4mm*0.3mm-32mm*3mm

Standard: ASTM A312, ASTM A213 etc.

Surface: No.1(Pickling), Bright(Polished)

253MA Stainless Steel Pipe is a heat-resistant austenitic stainless steel strengthened with nitrogen and alloyed with silicon and rare-earth elements. It provides strong oxidation resistance, good creep strength, and excellent performance under thermal cycling. 253MA pipe is suitable for furnace components, heat-treatment equipment, combustion systems, petrochemical units, industrial burners, and high-temperature process piping where oxidation and creep resistance are critical.

Chemical Composition

Element	Content (wt. %)
C	0.05–0.10
Si	1.40–2.00
Mn	≤0.80
P	≤0.040
S	≤0.030
Cr	20.0–22.0
Ni	10.0–12.0
Mo	—
N	0.14–0.20
Other	Ce: 0.03–0.08; Fe: Balance

Mechanical Properties

Condition	Tensile Strength	Yield Strength (0.2%)	Elongation	Hardness
Solution annealed, room temperature reference	≈700	≈355	≈35	≈≤220 HB

Industrial furnaces
Heat-treatment equipment
Petrochemical plants
Combustion systems
Burner components
High-temperature process piping

Introduction

Specification

Chemical Composition

Element	Content (wt. %)
C	0.05–0.10
Si	1.40–2.00
Mn	≤0.80
P	≤0.040
S	≤0.030
Cr	20.0–22.0
Ni	10.0–12.0
Mo	—
N	0.14–0.20
Other	Ce: 0.03–0.08; Fe: Balance

Mechanical

Mechanical Properties

Condition	Tensile Strength	Yield Strength (0.2%)	Elongation	Hardness
Solution annealed, room temperature reference	≈700	≈355	≈35	≈≤220 HB