Z8CN25-20

Z8CN25-20 Stainless Steels to NF A 35-573

Z8CN25-20 - Specification & Application

• NF A 35-573 - Stainless steels for general purposes. Plates, wide strips and strips
• NF A 35-578 - Iron and steel. Stainless steel for high temperature application
• NF A 36-209 - Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
• NF A 49-244 - Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery

Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery

Chemical composition(wt.%) of Z8CN25-20 grade: to NF A 35-573

Z8CN25-20 - Detail

Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery

Mechanical properties of grade Z8CN25-20 NF A 35-573

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)
797 (≥)	886 (≥)	22	21	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	114

Physical properties of grade Z8CN25-20 NF A 35-573

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
138 (≥)	432 (≥)	43	33	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	411
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
331	732	857