GB Cr12MoV Tool Steel Flat Bar, Economic Grade of D2 and SKD11
We have abundant stock of hot rolled flat bar GB Cr12MoV, Thickness
10-200 mm x Width 200-610mm.
Cr12MoV is widely used in China for making High-duty cutting tools (dies and punches), blanking and punching
tools. It is the economic grade of Compared with D2, 1.2379 and SKD11, with the lower content of Mo and V.
Tool Steel, Mold Steel
AISI, DIN, JIS, GB
6-400 x 60-1500 mm
Hot rolled, Forged, Annealed
100% UT Passed
AISI / SAE
DIN / W.Nr
◆ Chemical Composition (%)
◆ Delivery Condition
EAF+LF+VD, Hot rolled or Forged, Annealed, Hardness≤250HB, Black surface or Machined surface, UT 100% SEP1921 Class 3 D/d
1. A kind of high alloyed CrMoV steel for cutting tool and cold
work tool steel.
2. Quite good hardenability and wearing resistance, and small
distortion after quenching.
3. Not good impact toughness, be liable to fracture and form
High-duty cutting tools (dies and punches), blanking and punching
tools, wood working tools, shear blades for cutting light-gauge
material, thread rolling tools, tools for drawing, deep drawing and
cold extrusion, pressing tools for the ceramics and pharmaceutical
industries, cold rools (working rolls) for multiple-roll stands,
measuring instruments and gauges, small moulds for the plastics
industry where excellent wear resistance is required.
◆ Forging Technique
◆ Heat Treatment
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.
650 to 700°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.
980 to 1010°C
Oil, salt bath (220 to 250°C or 500 to 550°C), air blast, still
Tools of intricate shape or with sharp edges should preferably be
hardened in air or
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 63 - 65 HRC
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/cooling in air.
For average hardness figures to be obtained please refer to the
For certain cases we recommend to reduce tempering temperature and
increase holding time.
What we can offer?
We offer a wide range of steel products in a wide variety of
dimensions and executions,
acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
-- 50,000 tons Stock
-- 7 warehouses and branches
-- 47 sets of vertical band saws
-- 100 sets of modern facilities
-- A group of QC technicians
-- Professional technical consulting
Following is the Cold Work Tool Steel we are mainly supplying.
|Cold Work Tool Steel||D3||1.2080||SKD1||√||Cutting Tools, Punching Tools, Shear Bladers, Reamers, Thread
Rolling Dies, Calipers, Sockets etc.|
|——||1.2379 MOD||DC53 (Daido)||√|
◆ Solid round bar
◆ Flat bar
◆ Square bar
◆ Hexagon bar
◆ Wire rod