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AMS 5644 Steel Forging Parts UNS S17700 Galvanised Flat Bar
Production Information
AMS 5644 Precipitation Hardening Stainless Steel Alloy.
It is a semi-austenitic and is austenitic when annealed
state and hardened state of martensite. AMS 5644 provides high strength and hardness, excellent fatigue properties, good corrosion resistance and minimal heat treatment distortion. It is easily formed in the annealed state and then hardened
High strength levels are achieved by simple heat treatment at conditions RH 950 and TH 1050.
Excellent mechanical properties at temperatures up to 900ºF (482ºC).
Size Range
| Round bar / Wire rod (Diameter): | 5.0mm to 1100mm |
| Square bar / Flat bar: | 5.0mm to 1000mm |
| Forging piece: | Stepped shafts with flanks / discs /tubes |
| Heavy/middle plate via hot rolled: | T6 - 100mm X W10 - 1000mm X L1500-10000mm |
| Sheet steel via cold rolled: | T0.5 - 4.0mm X W6 - 1000mm X L1000 - 10000mm |
| Steel strip via cold rolled: | T0.1 - 4.0mm X W5 - 150mm X L (or in coil form) |
| Length | Fixed length or random length or based on the customer's special requirement. |
Chemical Composition and standard
| Grade | AMS 5644 / UNS S17700 |
| standard | SAE AMS 5644E-2017 / ASTM A313/A313M-2018 |
| Chemical Composition (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 |
Mechanical Properties
AMS 5644 Stainless Steel Mechanical Properties
| Tensile strength,Rm/MPa: | ≥1172 |
| Yield strength,Rp/MPa: | ≥965 |
| Elongation/%: |
≥6
|
| Reduction of area, ψ/%: |
≥25
|
| Impact, KV /J: | -- |
| Annealed hardness HBS: | ≤363 |
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