AISI 616 & AISI 422 & 1.4935 Turbine Blade Steel
Introduction:
Grade 616 is a hardenable stainless steel designed for use at temperatures of up to 650 ºC. Grade 616 has good resistance to scaling and oxidation. Through heat treatment, high mechanical properties can be developed. Grade 616 is used in applications such as compressors or steam turbines and also in aircraft parts, valves, high temperature bolting, and other mechanical parts used in high temperature circumstances.
The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.
Grade 616 is a hardenable stainless steel designed for use at temperatures of up to 650 ºC. Grade 616 has good resistance to scaling and oxidation. Through heat treatment, high mechanical properties can be developed. Grade 616 is used in applications such as compressors or steam turbines and also in aircraft parts, valves, high temperature bolting, and other mechanical parts used in high temperature circumstances.
The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.
Applications:
Aircraft components
High pressure corrosive fabricated parts such as valves
Shafts, Fasteners, and Fittings and gears
Aircraft components
High pressure corrosive fabricated parts such as valves
Shafts, Fasteners, and Fittings and gears
Technical Standard:
ASTM A565
ASTM A565
All Grades Comparison
| DIN | ASTM | AISI | UNS | JIS | Other |
|---|---|---|---|---|---|
| 1.4935 X20CrMoWV12-1 |
Grade 616 | 422 | S42200 | SUH 616 | 10705BU AMS 5655 |
| C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| 0.20 ～ 0.25 | ≤ 0.50 | 0.50 ～ 1.00 | ≤ 0.025 | ≤ 0.025 | 11.0 ～ 12.5 | 0.50 ～ 1.00 | 0.90 ～ 1.25 | W 0.90 ～ 1.25 V 0.20 ～ 0.30 |
Mechanical Properties
| Condition of heat treatment | Tensile Rm(MPa) | Yield Rp0.2(MPa) | Elongation A(%) |
Reduction in cross section on fracture Z (%) |
Impact AKV/AKU(J) | Brinell Hardness(HBW) |
|---|---|---|---|---|---|---|
| Annealed | - | - | - | - | - | ≤ 248 |
| Hardened 1022℃ ~ 1050℃ air or oil cooled, ≥620℃ X 2H, tempered | ≥ 965 | ≥ 760 | ≥ 13.0 | ≥ 30.0 | ≥ 11 | 302 ~ 352 |
| Hardened 1022℃ ~ 1050℃ air or oil cooled, ≥677℃ X 2H, tempered | ≥ 825 | ≥ 585 | ≥ 17.0 | ≥ 35.0 | ≥ 20 | 241 ~ 285 |
Forms and Dimensions:
Round bar (Diameter): 5.5 mm to 700 mm
Square bar / Flat bar: 5mm to 550mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250mm X H20 ~ 1250mm
Company Information