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UNS T41904 -S4 High Carbon Tool Steel

Product parameters
Material Category:: Silicon Based Tool Steel
Material Technical Standards:: ASTM A681 - 2004
Place of Origin: P. R. China
Stocklist & Inventory Available:: Round bar Diam. 20 ~ 110mm
Min. order quantity Per Batch:: 500 KG
Production Lead Time:: Within 25 days after 40% downpayment.
Company ISO Register No:: UQ211218R0
INQUIRY
Description

The alloy 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.

Main Chemical Composition (mass weight %)
C (%) 0.50 ~ 0.65
Si(%) 1.75 ~ 2.25
Mn(%) 0.60 ~ 0.95
P(%) ≤ 0.030
S (%) ≤ 0.030
Cr (%) 0.10 ~ 0.50
Ni (%) -
Mo(%) -
Other (%) V ≤ 0.35
Mechanical Properties
Condition of heat treatment annealing
Tensile Rm (MPa) -
Yield Rp0.2 (MPa) -
Elongation A (%) -
Reduction in cross section on fracture Z (%) -
Impact AKV/AKU (J) -
Brinell Hardness (HBW) 192 ~ 229
 
 
Forms and Dimensions:
Round bar (Diameter): 5.50 ~ 650mm
Square bar / Flat bar: 3 ~ 650mm
Wire rod (Diameter): 0.10 ~ 16mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forging piece: Different shapes based on OEM

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