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10mm - 600mm D3 Mold Steel / Tool Steel Round Bar 100% UT Passed

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US$ 4 - 5 MOQ: 1 Kilogram
Key Specifications
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Brand Name:
NFCase
Place of Origin:
China
Model Number:
AIA-1
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Ningbo Ningshing Special-Steel Group Co., Ltd.
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Payment Methods:
Port of Shipment:
China
Delivery Detail:
7 days

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Brand Name NFCase
Place of Origin China
Model Number AIA-1
Delivery Time:3-5 days
Certification:CE,FCC,MSDS

ASTM A681 AISI D3 Steel Bars , Cold Work Tool Steel for Blanking , Punching , Shearing

Steel Grade:

D3

Application:

Tool Steel, Mold Steel

Shape:

Round bar

Standard:

AISI, DIN, JIS, GB

Dimension:

Φ10 – 600 mm

Surface:

Black, Peeled, Turned, Grinded

Technique:

Hot rolled, Forged

Ultrasonic Test:

100% UT Passed

Description:

◆ Equivalence

AISI / SAE

DIN / W.Nr

JIS

GB

D3

1.2080

SKD1

Cr12

◆ Chemical Composition (%)

C

Si

Mn

P

S

Cr

2.00

2.35

0.10

0.60

0.20

0.60

≤

0.030

≤

0.030

11.00

13.50

◆ Dimensions

Hot Rolled

Forged

Diameter (mm)

10-130

60-600

Length (mm)

2000-5800

2000-5800

** We suggest ESR for the size over Φ400mm.

◆ Delivery Condition

EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤255HB,

Black surface or Machined surface (Peeled, Turned, Grinded), UT 100% Passed

◆ Characteristics

1. A kind of cold work tool steel widely used, belonging to Ledeburitic steel with high

    carbon and high chromium.

2. Quite good hardenability and wearing resistance, and small distortion after quenching.

3. Not good impact toughness, be liable to fracture and form inhomogeneous eutectic

    carbides.

◆ Applications

1. Common used for making cold work molds of excellent wearing resistance with

    light shock loads, such as punch heads, cold cutting scissors, drill bushes, gauges,

    wire drawing sheets, drawing dies, thread rolling dies etc.

2. Making cutting tools which is used for machining material of low hardness.

3. Used as plastic mold with good wearing resistance and long service life.

◆ Forging Technique

Heat

Temperature

Start Forging

Temperature

Finish Forging

Temperature

Cooling Method

1120 - 1140 °C

1080 - 1100 °C

880 - 920 °C

Slow Cooling

◆ Heat Treatment

Annealing

800 to 850°C

Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C,

further cooling in air.

Hardness after annealing: max. 250 HB.

Stress relieving

Approx. 650°C

Slow cooling in furnace; intended to relieve stresses set up by extensive machining,

or in complex shapes.

After through heating, hold in neutral atmosphere for 1-2 hours.

Hardening

940 to 970°C

Oil, salt bath (220 to 250°C or 500 to 550°C), compressed or still air if thickness does

not exceed 25 mm and if hardening temperature is on the upper side of the range.

Holding time after temperature equalization: 15 to 30 minutes.

Obtainable hardness: 63 - 65 HRC

Tempering

Slow heating to tempering temperature immediately after hardening/time in furnace

1 hour for each 20 mm of workpiece thickness but at least 2 hours/cool

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Ningbo Ningshing Special-Steel Group Co., Ltd.
Business Type
Trading Company
Total Employees
101 - 200 People
Main Markets
North America, South America, Eastern Europe
Location
Yulin, Shaanxi, China
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