Alloy Engineering Steel Bar AISI 4340 EN24 1.6511 SNCM439 40CrNiMo
Chemical composition(%)
| C | Si | Mn | S | P | Cr | Mo | Ni |
| 0.38~0.43 | 0.15~0.35 | 0.60~0.80 | ≤0.040 | ≤0.035 | 0.70~0.90 | 0.20~0.30 | 1.65~2.00 |
Application:
Used as require good toughness, high strength, as well as the
important conditioning of large size, heavy machinery such as high
load of axial, turbine shaft, larger than 250 mm in diameter of
helicopter rotor shaft, turbojet engine turbine shaft, blade, high
load of transmission parts, fasteners of the crankshaft,gear, etc.
It can also be used for operating temperature over 400 ºC of rotor
shaft and blade, etc. and after nitriding processing can also be
used to make special performance requirements of the important
parts, after low temperature tempering or can be used for
ultra-high strength steel after thermal quenching.
Features:
Excellent hardenability, high toughness and good heat-resistance
and fatigue-resistance.
Heat treatment:
Quenching 850 degrees; coolant; oil; tempering temperature of 600
degrees; coolant: water, oil;
Steel annealing or high temperature tempering supply state Brinell
hardness GBW is less than or
equal to 269.
Available Stock Size
20-450mm diameter x Length
Sizes and Conditions
Our steel materials are in different sizes and conditions specially
catered to our customers' needs. They come in round bars, flat
bars, plates and blocks.
The conditions of the materials vary from pre-hardened, hot
rolled,annealed, quenched and tempered to surface conditions such
as black, pre-machined,griding and polish.
Why choose us?
Quality Assurance from government owned steel mills
At die & tool steel , we meticulously source materials only from
steel manufacturers to ensure consistency in providing the finest
quality steel products for our customers.
Being in the competitive market today, we clearly understand that
customers are looking for products that are not only best in class
but also affordably priced. We are confident that we are able to
ful fil these two equally vital aspects –our customers' continuous
support over the past two decades is the most heartfelt recognition
to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as
important as providing quality goods, we treat every business
transaction as a priority. Be it a raw material or a finished
material with machining or heat treatment, every effort will be
made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers'
demands and quality considerations, our integrated quality and work
management system is continuously being improved and developed
further. We document this for our customers by having our quality
management system certified in accordance with ISO 9001. This
measure is accompanied by audits and recertification's on a
regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and
heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
Workshop
Quality Inpsection
Contact Us
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