Grade GH3030
Old Grade
Corresponding Standard GB /T 14995-2010
Hot-rolled superalloy sheets
Classification Special Alloy Steel
GH3030 Chemical Element Composition Content (%)
Component Fe C Si Mn P S Cr Cu Ti Pb Al More
Minimum Value - - - - - - 19 - 0.15 - - Ni:Remainder
Maximum Value 1 0.12 0.8 0.7 0.015 0.01 22 0.2 0.35 0.001 0.15
Besides GH 2132, Zr, B, and Ce are added to the alloy according to calculated amounts and are not subject to analysis; if there are any special requirements, they should be specified in the contract
GH3030 Mechanical Properties
test temperature
°C
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Room Temperature Delivery Condition ≥685 ≥30 Measured
700 Delivery Condition ≥295 ≥30 Measured
Notes:
①The mechanical properties of the plates (or samples) shall comply with the specifications in the mechanical properties table. When the plate thickness is not less than 7 mm, circular specimens shall be used; when the plate thickness is less than 7 mm, non-standard circular specimens can be prepared. The supplier will only provide actual measured mechanical property data without making a judgment based on these results, but this should be noted in the quality certificate.
②Upon request by the purchaser, the supplier may conduct high-temperature creep performance tests on other alloys. Requirements for high-temperature creep performance and test conditions (such as temperature, stress, rupture time, etc.) shall be determined through negotiation between the supplier and the purchaser and specified in the contract.
1 Approximate Comparison Table
China France Russia United Kingdom
GB ISC NF EN/NF GOST BS EN/BS
GH3030
(GH30)
H30300 ATG R
NC 20T
ЭИ 435 HR5
DTD 703B
N203
N403
2 Approximate Comparison Table
China United States Germany
GB Commercial Grade UNS W-Nr.
GH3030 Nimonic75 N06075 2.4630
2.4951

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!