Hot sale Factory D2 Tool Steel | 1.2379 | X153CrMo12 | SKD11 Factory for Johannesburg
1. Relevant D2 Steel Specifications Country USA German Japan Standard ASTM A681 DIN EN ISO 4957 JIS G4404 Grades D2 1.2379/X153CrMo12 SKD11 2. D2 Tool Steel Chemical Composition ASTM A681 C Mn P S Si Cr V Mo D2 1.4 1.6 0.1 0.6 0.03 0.03 0.1 0.6 11 13 0.5 1.1 0.7 1.2 DIN ISO 4957 C Mn P S Si Cr V Mo 1.2379/X153CrMo12 1.45 1.6 0.2 0.6 0.03 0.03 0.15 1.6 11 13 0.7 1 0.7 1 JIS G4404 C Mn P S Si Cr V Mo SKD11 1.4 1.6 0.6 0.03 0.03 0.4 11 13 0.2 0.5 0.8 1.2 3. AISI Grade...
Our company promises all users of the first-class products and the most satisfying post-sale service. We warmly welcome our regular and new customers to join us for Hot sale Factory D2 Tool Steel | 1.2379 | X153CrMo12 | SKD11 Factory for Johannesburg, We sincerely welcome both foreign and domestic business partners, and hope to work with you in the near future!
1. Relevant D2 Steel Specifications
|Standard||ASTM A681||DIN EN ISO 4957||JIS G4404|
2. D2 Tool Steel Chemical Composition
|DIN ISO 4957||C||Mn||P||S||Si||Cr||V||Mo|
3. AISI Grade D2 Steel Mechanical Properties
|Hardness, Knoop (converted from Rockwell C hardness)||769||769|
|Hardness, Rockwell C||62||62|
|Izod impact unnotched||77.0 J||56.8 ft-lb|
|Elastic modulus||190-210 GPa||27557-30457 ksi|
|Thermal expansion||10.4 x 10-6/ºC||20-100||
4. AISI/ASTM A681 D2 Grade Steel Forging
Heating for forging of AISI D2 tool steel should
be done slowly and uniformly. Soak through at 1850°-1950°F and reheat as often
as necessary, stopping work when the temperature drops below 1700°F(926℃). After D2
die steel forging, cool slowly in lime, mica, dry ashes or furnace. AISI D2 steel
should always be annealed after forging.
5. D2 Tool Steel Heat Treatment
ASTM D2 steels alloy 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).
Annealing of D2 tool steels material should be done at 871 to 898oC (1600 to 1650oF) followed by slow furnace cooling at 4.4oC (40oF) per hour or less.after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.
When desirable to relieve the strains of machining, heat D2 grade steel slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving).
Preheat Prior To Hardening
Preheat slowly to 1350°-1450°F and hold at this temperature until grade steel D2 material is uniformly heated.
After thorough preheating, heat to 1800°-1850°F. Hold the work piece at the hardening temperature until it is completely and uniformly heated.
AISI D2 steel tool material is an air hardening steel and will develop hardness on cooling in still air. To avoid scaling and prevent decarburization of the work piece surface, controlled atmosphere or vacuum furnaces are recommended. If these furnaces are not available, pack hardening, salt baths or wrapping the piece in stainless steel foil will provide some degree of surface protection in the hardening process. Parts should be allowed to cool to 150F, or to where they can be held in the bare hand, and then temper immediately.
The tempering temperature on material D2 steel may be varied according to the desired hardness. 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.
6. D2 Tool Steel Material Application
AISI grade D2 tool steels are used for long run tooling applications, where wear resistance is important, such as blanking or forming dies and thread rolling dies.
Some main applications for D2 tool steel are as below:
Blanking Dies, Forming Dies, Coining Dies, Slitting Cutters, Heading Tools, Long Punches, Forming Rolls, Edging Rolls, Master Tools, Beading Rolls, Intricate Punches, Extrusion Dies, Drawing Dies, Lamination Dies, Thread Rolling Dies, Shear Blades, Burnishing Tools, Gauges, Knurls, Wear Parts.
We usually hold D2 tool steel on sale activities, and you would have our price on regular schedule. Contact us and sign in our newsletter to have D2 tool steel materials price list and commercial quote today.
This is a short video showing M14 bolts being forged from 8620 bar stock at Bula Forge & Machine.
Before the nova was painted (black) and restored
383 Stroker: (633hp/577tq @ fly)
1969 Original SS 350 Block – 4 bolt main (3970010 cast numbers)
- block had been resin filled for strength
Eagle – 4340 Forged 3.75″ crank (this is an actual 383 specific crank, not a 400 crank milled down to a 383)
-Knife Edged and Lightened
Eagle H-Beam 4340 Forged Rods (6″ rods)
JE 4340 Forged Pancake Pistons (full floating pins and nitrous reliefs) (11:1 Compression = Runs just fine on 91 octane pump gas, but loves 103 octane)
- Pistons were Ceramic Coated for Nitrous but nitours has never been run on it. (been wanting to but never got around to it)
64cc Edelbrock Performer RPM Heads (Aluminum)
-Fully ported and port matched to the intake and exhaust
-Valves Sizes increased from 2.02/1.60 to 2.08/1.60
-Rev Kit / K-Motion Springs
-Comp Full Roller Rockers
Holley Strip Dominator Intake Manifold
-Port-matched to heads
Holley 830cfm Mechanical Double Pumper Carb (re-jetted with jet kit included)
-fuel pump is mounted right next to the Fuel Cell and is fully plummed with dash 8 AN fittings and dash 8 steel braded fuel lines.
All Transmission lines are done the same way as well
Iski Cam – Solid Roller Cam – .602/.602 lift 300/300 duration with 1.6′ rockers = .642 final lift
MSD 6AL Box with changeable rev limiter chips
Griffin 2 – 1 inch core radiator
Black Magic Electric Fan
Remote Trans Cooler with onboard electric fan
Entire assembly has been blueprinted, matched and balanced to each corresponding part.
Hooker Supercomp Headers
Dual 3″ Tubes
Dual 2 Chamber 50 Series Flowmasters (this setup sucks… get the Borla XR1s instead)
TH 350 Manual Valvebody Race Transmission
Beefed up Driveshaft by Whittier Driveline
3.73 gears with a mini spool in video, then switched to 4.56 minispool, but that was too much, now its got a 12bolt posi 4.11
Heat treated axles
Rear-End was a 10-bolt (sucks..) now 12 bolt.
Multi leaf springs and lift bars
4000 Stall with anti balloon plates for nitrous