D6/SKD2/1.2346 Cold work special tool steel round bar, tool steel
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,
GB Cr12W %
DIN- 1.2436 %
|2,00 - 2,25||0,10 - 0,40||0,15 - 0,45||<=0,030||<= 0,030||11,00 - 12,00||0,60 - 0,80|
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:
Excellent wear resistance and edge holding ability
High surface harness after heat treatment
Good through hardening properties and dimensional stability
High compressive strength
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.
Outstanding resistance to wear and galling.
Hardening is safe and easy.
Heat slowly and uniformly to 700°C then more rapidly to 900/1050°C.
After forging cool slowly, preferably in a furnace.
Anneal at 800°/840°C and slow furnace cool. Hardness after
annealing will be approx. 225 brinell.
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.
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.
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