X8CrNi25-21

X8CrNi25-21 Stainless Steels to BS EN 10088-1

X8CrNi25-21 - Specification & Application

• BS EN 10088-1 - Stainless steels - Part 1: List of stainless steels
• BS EN 10095 - Heat resisting steels and nickel alloys
• BS EN 10296-2 (2005) - Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
• BS EN 10297-2 (2005) - Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(wt.%) of X8CrNi25-21 grade: to BS EN 10088-1

X8CrNi25-21 - Detail

Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Mechanical properties of grade X8CrNi25-21 BS EN 10088-1

Proof strength Rp0.2 (MPa)	Tensile strength Rm (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
932 (≥)	156 (≥)	13	11	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	323

Physical properties of grade X8CrNi25-21 BS EN 10088-1

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2	Expansion rate
311 (≥)	696 (≥)	43	14	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	433
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
783	678	796