GH3030

GH3030 Stainless Steels to GB/T 14992 (2005)

GH3030 - Specification & Application

• GB/T 14992 (2005) - Classification and designation for superalloys and high temperature intermetallic materials
• GB/T 14994 (2008) - Cold brawn heat-resisting superalloy bars
• GB/T 14995 (2010) - Hot-rolled superalloy sheets
• GB/T 14996 (2010) - Cold-Rolled heat-resisting superalloy sheets
• GB/T 14998 (1994) - Heat-resisting superalloy blanks for forged rings
• GB/T 15062 (2008) - Superalloy tube for general application

Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(wt.%) of GH3030 grade: to GB/T 14992 (2005)

GH3030 - Detail

GH3030

Mechanical properties of grade GH3030 GB/T 14992 (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)
831 (≥)	163 (≥)	11	41	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	422

Physical properties of grade GH3030 GB/T 14992 (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
762 (≥)	976 (≥)	21	34	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	212
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
881	952	938