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UNS T20826 / H26 Tungsten Base Tool Steel

Product parameters
Material Technical Standards:: ASTM A681 - 2004
Place of Origin: P. R. China
Terms of Price:: Ex works, CIF, and CFR
Melting Process Route:: EAF + LF + VD / + ESR, BEF + ESR
Min. order quantity Per Batch:: 16000 / 3300 KG
Product Shapes:: Round bar, Flat bar, Plate
Production Lead Time:: Within 75 days after 40% downpayment.
Unified Social Credit Code:: 91510871777942750J
Company ISO Register No:: UQ211218R0
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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.

Chemical Composition (mass weight %)
C (%) 0.45 ~ 0.55
Si(%) 0.15 ~ 0.60
Mn(%) 0.15 ~ 0.40
P(%) ≤ 0.030
S (%) ≤ 0.030
Cr (%) 3.75 ~ 4.50
Ni (%) -
Mo(%) -
Other (%) W 17.25 ~ 19.0
​​​​​​V 0.75 ~ 1.25
Mechanical Properties at Room Temperature.
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) 217 ~ 241
Forms and Dimensions Available:
Round bar (Diameter): 5.50 ~ 350mm
Square bar / Flat bar: 3 ~ 450mm
Wire rod (Diameter): 3.0 ~ 10mm
Forging piece: Different shapes based on OEM

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