Chemical Composition Element Content (wt. %) C ≤0.070 Si ≤1.00 Mn ≤1.00 P ≤0.040 S ≤0.030 Cr 14.0–15.5 Ni 3.5–5.5 Mo — N — Other Cu: 2.5–4.5; Nb+Ta: 0.15–0.45; Fe: Balance

Mechanical Properties Condition Tensile Strength Yield Strength (0.2%) Elongation Hardness Condition A, reference ≈1030 ≈930 ≥10 ≈≤311 HB

Aerospace equipment Oil and gas components Valves and pumps Shafts and mechanical parts Chemical equipment High-strength fittings

Chemical Composition Element Content (wt. %) C ≤0.070 Si ≤1.00 Mn ≤1.00 P ≤0.040 S ≤0.030 Cr 14.0–15.5 Ni 3.5–5.5 Mo — N — Other Cu: 2.5–4.5; Nb+Ta: 0.15–0.45; Fe: Balance

Mechanical Properties Condition Tensile Strength Yield Strength (0.2%) Elongation Hardness Condition A, reference ≈1030 ≈930 ≥10 ≈≤311 HB

Aerospace equipment Oil and gas components Valves and pumps Shafts and mechanical parts Chemical equipment High-strength fittings

15-5PH Stainless Steel Seamless Pipe

Grade: 15-5PH/XM-12/S15500

Size:

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

Coiled: 4mm*0.5mm-32mm*3mm

Standard: ASTM A312, ASTM A213 etc.

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

XM-12 Stainless Steel Pipe, commonly known as 15-5PH, is a precipitation-hardening stainless steel offering high strength, good corrosion resistance, and improved transverse toughness compared with some earlier precipitation-hardening grades. It can be aged to achieve a range of strength levels. The material is used in aerospace, chemical processing, oil and gas, valves, pumps, shafts, and other high-strength corrosion-resistant components.

Chemical Composition

Element	Content (wt. %)
C	≤0.070
Si	≤1.00
Mn	≤1.00
P	≤0.040
S	≤0.030
Cr	14.0–15.5
Ni	3.5–5.5
Mo	—
N	—
Other	Cu: 2.5–4.5; Nb+Ta: 0.15–0.45; Fe: Balance

Mechanical Properties

Condition	Tensile Strength	Yield Strength (0.2%)	Elongation	Hardness
Condition A, reference	≈1030	≈930	≥10	≈≤311 HB

Aerospace equipment
Oil and gas components
Valves and pumps
Shafts and mechanical parts
Chemical equipment
High-strength fittings

Introduction

Specification

Chemical Composition

Element	Content (wt. %)
C	≤0.070
Si	≤1.00
Mn	≤1.00
P	≤0.040
S	≤0.030
Cr	14.0–15.5
Ni	3.5–5.5
Mo	—
N	—
Other	Cu: 2.5–4.5; Nb+Ta: 0.15–0.45; Fe: Balance