D6/SKD2/1.2346 Cold work special tool steel round bar, tool steel bar

Description: BS4659 BD6 is a high carbon high chromium tool steel giving ver y high wear resistance and edge holding quality. air hardening alloy tool steel with excellent resistance to wear and abrasion. D6 tool steel has good through hardening properties and dimensional stability combined with high resistance to tempering.

1.Equivalent grades: DIN 1.2436/X210Cr12W, AISI D6, GB Cr12W, SKD2, DIN 1.2346

2.Chemical Composition:

GB Cr12W %

DIN- 1.2436 %

3.Available sizes: Round dia 16mm to 550mm;

4.Smelting & Shaping: EF/ ESR+ hot rolled

5.Surface Condition: Black surface/ Machined

6.Delivery Condition: Annealed

7.Annealed Hardness: HB225MAX

8.Hardness & Tempering Curve Graph:

9.Characteristics:

Excellent wear resistance and edge holding ability

High surface harness after heat treatment

Medium toughness

Good through hardening properties and dimensional stability

High compressive strength

10. Applications:

Cutting and drawing tools of high wear resistance,

Rolls with high dimensional stability

Deep drawing tools

Tools of wire

Bar and tube production

Cold shear blades for thin sheets.

ADVANTAGES:
Excellent machinability.
Outstanding resistance to wear and galling.
Hardening is safe and easy.

Forging:
Heat slowly and uniformly to 700°C then more rapidly to 900/1050°C. After forging cool slowly, preferably in a furnace.

Heat Treatment:

Annealing:
Anneal at 800°/840°C and slow furnace cool. Hardness after annealing will be approx. 225 brinell.
Stress Relieving:
If machining operations have been heavy or if the tool has an unbalanced section, remove stresses from D6 tool steel before hardening by heating up to 650°/700°C, equalise, then cool slowly.
Hardening:
Pre heat slowly to 750/800°C and thoroughly soak. Continue heating to the final hardening temperature of 950°/980°C and allow the component to be heated through. Cool in air or quench in oil.
Tempering:
Heat uniformly and thoroughly at the selected tempering temperature and hold for at least one hour per inch of total thickness. Double tempering should be carried out with intermediate cooling to room temperature.

 We, Shanghai Unite Steel are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china, such as: DAYE Special Steel-a famous steel enterprise with the longest steelmaking history; BAO Steel, and Dongbei Special Steel Group-the biggest special steel manufacturer; TPCO, VALIN-largest seamless steel tube production enterprise; What's more, we have built long, deep and close business relationship with dozens of steel companies, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!