AMS 5616 Heat Resistant Steel

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Technical Specifications - AMS 5616M
Material Category - Martensitic stainless high tensile
AMS 5616 (S41800), is heat resistant steel, these materials have been used typically for parts, such as shrouds, ducts, and cases, requiring oxidation resistance up to 1000 °F (538 °C), 

Chemical Compositions (Mass weight - %)
C (％):  0.15 ~ 0.20, Si (％):  ≤ 0.50, Mn (％): ≤ 0.50, P (％)≤: 0.025, S (％)≤: 0.015
Cr (％): 12.0 ~ 14.0, Ni (％): 1.80 ~ 2.20, Mo (％):  ≤ 0.50, W (％):  2.50 ~ 3.50
Al (%): ≤ 0.15, Cu (%): ≤ 0.50, N (%): ≤ 0.08, Fe (%): balance

Mechanical Properties and Heat Treatment Practice  
Tensile strength, σb ≥/MPa:  1034
Yield strength, σ0.2 ≥/MPa:-
Elongation, δ ≥(％): 10.0
Reduction of area, ф ≥(％): -
Hardness | HRS: ≤ 311 (annealed condition)
Condition of heat treatment: HT 981℃ ~ 1080℃ air or oil cooled, ≥620℃ X 2H, two times tempered
Tensile strength, σb ≥/MPa: 965
Yield strength, σ0.2 ≥/MPa: 760
Elongation, δ ≥(％): 15.0
Reduction of area, ф ≥(％): 45.0
Hardness | HBW: 302 ~ 352

Melting Process
This alloy is generally smelt in Electric Arc Furnace  (EAF), EAF+LF+VD, BEF + 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. 

Dimensions and Forms
Round bar: 5.5mm to 500mm
Square bar / Flat bar: 10mm to 450mm
Wire rod: 1.0mm to 13.0mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.