General Electric Material B50A789 identifies a Chromium-Nickel-Copper-Columbium-Iron alloy steel, as forged, extruded or machined, from bar or billet, for compressor blading and steam turbine buckets.
ASTM A437/A437M B4B is a quenched and tempered martensitic stainless steel with excellent mechanical properties
X12CrNiMo12, 1.4939 QT900 Bar for highly loaded Blades/Vanes
X40MnCrN19 K, 1.3813 cold drawn steel bars for the manufacturing of tension bolts
Creep resistant steels - X12CrNiMoV12-2, Z12CNDV12, 1.4933, 1.4938, 1.4939, S41428, S64152, X12CrNiMo12, XM-32, Jethete M152 comparison, Bar for highly loaded Blades /Vanes (ESR)
GE POWER NB 00141 Steel bars, Creep resistant, St12T, X22CrMoV12-1, Rp0.2 700 MPa min high alloy steel bars.
The material 1.4418 is a stainless steel alloy. It is also known as X4CrNiMo16-5-1 or 1.4418/QT900. This alloy falls under the category of martensitic stainless steel and contains elements like chromium, nickel, molybdenum, and a small amount of sulfur. I
21CrMoV5-7 steel has emerged as a highly sought-after material for fasteners due to its exceptional properties and outstanding performance.
S/SJ2, and French grade Z12CNDV12 belong to CrNiMoV martensitic heat-resistant stainless steel