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Grade 403Cb

Item No.: Grade 403Cb
INQUIRY
Description
Introduction:
Grade 403Cb is 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:
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace.
Grade 403Cb is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.

Technical Standard:
ASTM A276

All Grades Comparison
DIN ASTM AISI UNS JIS Other
- Grade 403Cb 403Cb S41041 - EMS-S-034

Chemical Composition (Weight %)
C Si Mn P S Cr Ni Mo Other
0.13 ~ 0.18 ≤ 0.50 0.40 ~ 0.60 ≤ 0.030 ≤ 0.030 11.5 ~ 13.0 ≤ 0.50 ≤ 0.20 Nb 0.15 ~ 0.45
Al 
 ≤ 0.05

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)
Annealed - - - - - -
HT 1136℃~1163℃, ≥677℃ X 2h tempered ≥ 795 ≥ 515 ≥ 15.0 ≥ 50.0 ≥ 35 ≤ 277

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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