AMS 5508
2026-07-23 09:45:00   Origin：   Remark：0 Click：

MATERIAL SPECIFICATION - AMS 5508

Material category: martensitic high content chromium steel
Technical standards: AMS 5508E
Stock for sale: round bar, steel coil THK0.70 X Width 200mm in coil
Melting process way: consumable electrode remelted (+ ESR)
Official test report: issued by TUV - SGS -  BV
Typical chemical composition (mass fraction - %)
Carbon, C (％): 0.15 ~ 0.20
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): ≤ 0.50
Phosphorus, P (％) ≤: 0.030
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 12.0 ~ 14.0
Nickel, Ni (％): 1.80 ~ 2.20
Molybdenum, Mo (％): ≤ 0.50
Tungsten, W (％): 2.50 ~ 3.50
Aluminum, Al (%): ≤ 0.15
Copper, Cu (%): ≤ 0.50
Nitrogen, N (%): ≤ 0.08

MECHANICAL PROPERTIES UNDER HEAT TREATMENT  
Tensile strength, σb ≥ MPa:  1034
Yield strength, σ0.2 ≥ MPa:-
Elongation, δ5 ≥ (％): 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, δ5 ≥ (％): 15.0
Reduction of area, ф ≥ (％): 45.0
Hardness | HBW: 302 ~ 352

PRODUCT DESCRIPTION
The alloy AMS 5508 (S41800) is usually produced by BEF / AOD followed by electroslag refining (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.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - Quenched and tempered.

TYPICAL APPLICATIONS
Chemical equipment, Valves, Pressure vessel.
Mechanical parts used in the condition of corrosion resistance.
Automobile parts, exhaust pipe.
Electronics, Turbine motor blade, Bolts and nuts.

PROFILE & DIMENSIONS
Rod & round bar & disc (diameter): 6.0 to 850mm
Square bar & flat bar: 8mm to 610mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400 X W20 ~ 610 X L1000 ~ 5000mm

Sheet steel via cold rolled: T0.5 ~ 6 X W20 ~ 800 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W10 ~ 200 X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM. 

ADVANTAGE & SUPERIOR SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.

TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:sales@ccsteels.com