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SUS431FB

Product parameters
Material Category:: Stainless Steel
Steel Grade: SUS431FB
Material Technical Standards:: JIS
Specification Code:: JIS G4319-1991
Place of Origin: Japan
INQUIRY
Description
Introduction:
SUS431FB 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:
SUS431FB used for components such as Tall oil distillation columns and equipments,Food processing equipments,Hydrometallurgy, heat exchangers,Oil and gas production equipments,Pulp mill bleach systems,Seawater handling equipments.
All Grades Comparison
JIS Other
SUS431FB -
Chemical Composition (Weight %)
C Si Mn P S Cr Ni Mo Other
≤ 0.20 ≤ 1.00 ≤ 1.00 ≤ 0.040 ≤ 0.030 15.0 ~ 17.0 1.25 ~ 2.50 - -
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)
Annealing - - - - - -
Quenching and tempering ≥ 780 ≥ 590 ≥ 15.0 ≥ 40.0 - ≤ 229
Forms and Shapes:
Round bar (Diameter): 5.5 mm to 700 mm
Wire rod (Diameter): 0.10 ~ 16mm
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
Heavy/middle plate via hot rolled: T50 - 200mm X W80- 1200mm X L1000-3000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 
Length: Fixed length or random length or based on the customer's special requirement.

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