ASTM A437 type B4C
2019-10-16 15:32:29 Origin： Remark：0 Click：
TECHNICAL DATA SHEET - ASTM A437 Grade B4C
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
Technical standards: ASTM A437 - 2012
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.20 ~ 0.25
Si (％): 0.20 ~ 0.50
Mn (％): 0.50 ~ 1.00
P (％)≤: 0.025
S (％)≤: 0.015
Cr (％): 11.0 ~ 12.5
Ni (％): 0.50 ~ 1.00
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Condition: Quenched 1025 ~ 1050℃, oil cooled, tempered 620℃ min., air cooled
Yield strength, σ0.2/≥ MPa: 585
Elongation, δ ≥(％): 18.0
The alloy is usually produced by EAF+LF+AOD / VOD /VIM 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 black/bright in the annealed condition.
Final heat treatment - Quenched and tempered
Round bar (Diameter): 5.50mm to 800mm
Square bar / Flat bar: 3mm to 500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
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