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D2 mould steel flat bar
D2 mould steel is an air hardening, high-carbon, high-chromium tool steel. It has high wear and abrasion resistant properties. It is heat treatable and is machinable in the annealed condition. D2 steel shows little distortion on correct hardening. D2 steel’s high chromium content gives it mild corrosion resisting properties in the hardened condition.
Product Basic Information:
D2 mould steel chemical composition &mechanical properties:
Diameter(mm) | Thickness(mm) | Width(mm) | Length(mm) | |
Round | 8-810 | - | - | 2000-5800 |
Square | 10-420 | - | - | 2000-5800 |
Flat | - | 1.5-150 | 80-800 | 2000-5800 |
Chemical Composition(%):
Grade | C | Mn | P | S | Si | Cr | V | Mo |
D2 | 1.40 - 1.60 | 0.10 - 0.60 | 0.030 | 0.030 max. | 0.10 -0.60 | 11.00 - 13.00 | 0.50 - 1.10 | 0.70 - 1.20 |
Hardness:
Type | Annealed | Cold Drawn |
D2 Alloy tool steel | 255 Max | 269Max |
Similar steel grade & equivalent steel materials:
USA | Japanese | Gemany | British | France | heat treatment | Chinese |
ASTM&AISI&SAE | JIS | EN DIN | EN BS | EN NF | ISO | GB |
AISI D2 | SKD11 | X153CrMoV12 1.2379 | ------ | Cr12Mo1v1 | ||
Surface Treatment
Origin Black, Orign cold rolled bright, Machined, Grinded
Fabrication and Heat Treatment
Heat Treatment
D2 steels should be preheated very slowly to 815ºC (1500ºF) and then temperature can be increased to 1010ºC (1850ºF). They are then held at 1010ºC (1850ºF) for 20 to 45 minutes and air cooled (air quenched).
Forging
Forging of D2 steels can be done from 1065ºC (1950ºF) down to 954ºC (1750ºF). Do not forge below 926ºC (1700ºF).
Annealing
Annealing of D2 steels should be done at 871 to 898ºC (1600 to 1650ºF) followed by slow furnace cooling at 4.4ºC (40ºF) per hour or less.
Tempering
D2 steels can be tempered at 204ºC (400ºF) for achieving Rockwell C hardness of 61 and at 537ºC (1000ºF) for a Rockwell C hardness of 54. 
Packing & Delivery
FAQ
Q.Are you factory or trading company?
A.We are factory. We can control the quality from raw material to finished products. Welcome to visit our factory!
Q.Is the M.O.Q negotiable?
A.Yes, we can discuss about the quantity.
Q.Can you provide an integrated supply solution of multiple commodities?
A.Yes, We can provide services for multiple categories and small quantities.
Q.Which payment can be acceptable?
A.Trade Assurance, TT, L/C and etc are all acceptable. We prefer to Trade Assurance from Alibaba platform, because Trade Assurance payment can protect customer`s rights and benefits and also promote us to improve product quality and service ability.
Our Service
Warranty provided to the customer satisfaction of Cold Work High Speed D2/SKD11 Tool Steel Flat Bar for Knives and services is our eternal purpose. The concept of pursuing excellence and always reaching new heights has always inspired us to keep advancing courageously in the tide of market economy. We firmly think that we have the full capability to present you contented merchandise.