ISO H15

ISO H15 Stainless Steels to ISO 4955 (2005)

ISO H15 - Specification & Application

• ISO 4955 (2005) - Heat-resistant steels
• ISO 9327-5 - Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels

Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels

Chemical composition(wt.%) of ISO H15 grade: to ISO 4955 (2005)

ISO H15 - Detail

Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels

Mechanical properties of grade ISO H15 ISO 4955 (2005)

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)
734 (≥)	199 (≥)	33	13	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	141

Physical properties of grade ISO H15 ISO 4955 (2005)

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
317 (≥)	649 (≥)	41	13	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	344
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
217	878	691