China-Special-Alloy-Steel-D3-Special-Steel-AISI-D3-Cr12-Reinforcing-D3-Steel-in-Round-Bar

D3 Cold Work Tool Steel is an oil hardening, high carbon/chromium type tool steel.
> Good wear resistance
> Compressive strength
> Resistance to plastic deformation
> Good hardenability

Heat Treatment:
Forge: At 1050° C-850° C Cool slowly in furnace or thermoinsulating material
Annealing: At 800° C-850° C Cool slowly in furnace
Stress Relieving: Approx. 650° C Cool slowly in furnace
Hardening after annealing: Max. 248 HB

APPLICATIONS: Cutting tools, stamping, woodworking, drawing, deep drawing and pressing tools, cold working rolls, measuring tools.

Chemical Composition (%)

C 1.90-2.20
Si 0.10-0.60
Mn 0.20-0.60
P max. 0.030
S max. 0.020
Cr 11.0-13.0
Mo -
V -
Cu max. 0.025

Common Size: Round bars: Dia. 80-600mm Plates: Thickness: 40-350mm Width: 100-1000mm, Length: 2m-6m

Delivery condition: EAF+LF+VD+(ESR), forged, annealed, UT tested, peeled or machined.

Hardness HBW: < =248HB

Tolerance: 0/+2mm

Forging Ratio: Min 1: 4

Surface: Rounds: Black/grinded/turned Plates: Black/milled

Surface condition: Cracks, decarburisation, burd spots and similar surface defects just within permissible tolerances.

Grain size: ASTM E112 5-8

Inclusion rating:
According to ASTM E45

TYPE A B C D
THIN 0.5-2.0 0.5-2.0 0.5-2.0 0.5-2.0
THICK 0.5-2.0 0.5-2.0 0.5-2.0 0.5-2.0
Or K4 max. 30 according to DIN 50602

UT Grade: Sep 1921-84 Group 3 Class D/d Qualified.

Delivery time: Within 40 days.

Quality assurance: ISO9001 certificated, IQNet, CQC

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