AMS 5644 / UNS S17700 Martensitic Steels
Description S17700 Stock list, Flat bars 17-7PH Ex-stock Steel ingot Wire rod from Steel melting (ESR refined), Blooming, Hot forging, Hot rolling, Heat treatment, Straightening,
| Product parameters | |
| Material Category:: | Martensitic PH Stainless Steel |
| Material Technical Standards:: | AMS 5644V |
| Place of Origin: | P.R. China |
| Melting Process Route:: | EAF + VD + LF / BEF + ESR |
| Ultrasonic Test Standard:: | ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308 |
| Standard Export Packing Way:: | Wooden box, pallet / tray free from fumigation |
| Production Lead Time:: | Within 55 days after 40% deposit prepayable |
| Company ISO Register No:: | UQ211218R0 |
Description
This alloy is generally smelt in Basic Electric Furnace (EAF, AOD) or VIM + Electroslag remelting (ESR). For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement. It is suitable for applications such as high tensile shafts, bolts and nuts, gears, pinions spindles and so on.
Material Category - Aerospace ESR quality martensitic stainless steel
Techncial Specifications - AMS 5644V
Chemical compositions (Mass weight %)
C (％): ≤ 0.09, Mn (％): ≤ 1.00, Si (％): ≤ 1.00,
P (％)≤: 0.040, S (％)≤: 0.030
Cr (％): 16.0 ~ 18.0, Ni (％): 6.50 ~ 7.75, Al (%): 0.75 ~ 1.50
Fe (%): balance
Mechanical properties under room temperature.
Shapes: bars and forgings
Tensile strength, σb/MPa: 1172
Yield strength, σ0.2/MPa: 965
Elongation, δ(％): 6.0
Reduction of area, ф (％): 25.0
Hardness under aged condition | HBW: 363 min.
Hardness under solution condition | HBW: 230 Max.
Product shapes & Dimensions
Round bar (Diameter): 5.5 to 500mm
Square bar / Flat bar (Thickness X width): 10 to 610mm
Wire rod (Diameter): 3.0 to 13.0mm
Steel strip: THK0.5 ~ 3.0 X width 8 ~ 220mm
Length: Fixed length or random length or based on the customer's special requirement.
