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UNS T30403 / AISI D3 Cold Work Tool Steels

Product parameters
Material Category:: High Carbon Tool Steel
Place of Origin: P.R. China
Product Shapes:: Round bars, flat bars, forgings, plate
Ultrasonic Test Standard:: ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308
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 (Weight %)
C (%) 2.00 ~ 2.35
Si(%) 0.25 ~ 0.45
Mn(%) 0.25 ~ 0.45
P(%) ≤ 0.030
S (%) ≤ 0.030
Cr (%) 11.0 ~ 13.0
Ni (%) -
Mo(%) ≤ 0.80
Other (%) W ≤ 0.75
V ≤ 0.80

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) 217 ~ 255
 
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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