JIS SKD12 Cold Worked Mold Steel
The usage is as follows:
1. Tool and die making: 1.2363 steel is often used to make cutting tools, molds, and dies due to its high hardness and wear resistance.
2. Industrial knives and blades: The toughness and edge retention of 1.2363 steel make it ideal for manufacturing industrial knives and blades used in cutting and shearing applications.
3. Machine components: 1.2363 steel is also used in the production of various machine components such as gears, shafts, and bearings due to its good dimensional stability and strength.
4. Automotive industry: Some automotive components, such as crankshafts and transmission parts, are made from 1.2363 steel due to its high strength and durability.
- HONGXIN
- DAYE
- 30 DAYS
- 8000 TON/MONTH
- Information
JIS SKD12 Cold Worked Mold Steel
1: AISI A2 steel introduction
AISI A2 tool steel is one of 'A' group cold works steel in ASTM A681 standard. A2 Tool Steel is a versatile, air hardening chromium alloy tool steel that replaces O1 tool steel when safer hardening, less distortion and increased wear resistance are required. AISI type A2 steel is intermediate in wear resistance between O1 oil-hardening tool steel and D2 high-carbon, high-chromium tool steel.
2: AISI A2 Steel equivalent
| Country | China | Japan | Germany | USA | UK |
| Standard | GB/T 1299 | JIS G4404 | DIN EN ISO4957 | ASTM A681 | BS 4659 |
| Grade | Cr5Mo1V | SKD12 | 1.2363/X100CrMoV5 | A2/T30102 | BA2 |
3: AISI A2 steel chemical composition
| Grade | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| A2/T30102 | 0.95 | 1.05 | 0.40 | 1.00 | 0.03 | 0.03 | 0.10 | 0.50 | 4.75 | 5.50 | 0.15 | 0.50 | 0.90 | 1.40 |
| 1.2363/ X100CrMoV5 | 0.95 | 1.05 | 0.40 | 0.80 | 0.03 | 0.03 | 0.10 | 0.40 | 4.80 | 5.50 | 0.15 | 0.35 | 0.90 | 1.20 |
| SKD12 | 0.95 | 1.05 | 0.40 | 0.80 | 0.03 | 0.03 | 0.10 | 0.40 | 4.80 | 5.50 | 0.15 | 0.35 | 0.90 | 1.20 |
| BA2 | 0.95 | 1.05 | 0.30 | 0.70 | 0.035 | 0.035 | . . . | 0.40 | 4.75 | 5.25 | 0.15 | 0.40 | 0.90 | 1.10 |
4: AISI A2 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: AISI A2 steel overviews
| Size | Round | Dia12-500mm | |
| Plate/Flat/Block | Thickness 12mm-500mm | ||
| Width 210mm-710mm | |||
| Process | EAF+LF+VD+Forged+Heat treatment(optional) | ||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | ||
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | ||
| Delivery condition | Forged; Hot rolled; Cold drawn | ||
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | ||
| Payment terms | T/T;L/C;/Money gram/ Paypal | ||
| Trade terms | FOB; CIF; C&F; etc.. | ||
| Packing | Standard Packages, or as Customers Request | ||
| Delivery time | 30-45 days | ||
| Application | AISI A2 is suitable for applications such as Blanking dies, block and ring gauges, coining, cold forming, cold trimming and forming dies, cold shears, rolls, knurls and knurling tools, machine parts, mandrels, punches and punch plates, reamers, shear and slitter blades, stamping dies and threading tapes. | ||
6: Heat Treatment
Stress relieving
After heavy grinding or machine it is advisable to stress relieve tool steel A2 to reduce the danger of cracking or distortion during subsequent heat treatments. Heat slowly to 670-700°C, soak for a minimum of two hours per 25mm of section then cool down in the furnace.
Annealing
To prevent decarburization use a controlled atmosphere furnace or pack in a sealed container using some inert material. To anneal A2 tool steel for lowest hardness, heat slowly to 899°C(1650°F) and hold at this temperature for about two hours per inch of greatest cross-section. Cool steel A2 at a rate of 20°F (10°C) per hour to 650°C (1200°F) and reheat to 732°C (1350°F); hold 3 hours per inch of greatest cross-section; furnace cool at 20 degrees per hour to 593°C (1100°F); then furnace-cool to 482°C (900°F) and air-cool.
Hardening
Preheating temperature: 1200–1380°F (650–750°C). Austenitizing temperature: 1700 –1780°F (925–970°C) but usually 1720–1760°F (940–960°C).
Tempering
Choose the tempering temperature according to the hardness required by reference to the tempering graph.
Heat uniformly and thoroughly to the desired temperature and hold for 25 minutes per cm of thickness. Tool steel A2 can be double tempering, after intermediate cooling to room temperature. Temper at 200°C for a balance of hardness and strength or 350°C where strength is more important than hardness. A minimum holding time of 2 hours per inch of greatest cross-section should be used.
Quenching
Martempering bath or fluidized bed at 360–430°F (180–220°C) or 840–1020°F (450–550°C) then cool in air
Circulating air or atmosphere
Vacuum furnace with overpressure of gas at cooling
Oil (only for small and uncomplicated tools)
7: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hongxin Mold Tech Co.,Ltd. owns 1 set of Hot Rolling Production Line at size range flats 8-80*210-710mm, rounds 16-50mm Dia.
12 sets of Hydraulic Forging Hammers from Power 560kgs to 6000kgs which could cover flats 40-300*210-710mm.
8 sets of EF+LF+VD
5 sets of ESR
9 sets of Milling Machines
10 sets of Turning Lathes
6 sets of Precision Milling Machines.
CERTIFICATION: GB/T19001-2016/ISO9001:2015
Products' List
Packaging&Shipping
Q1:Are you trading company or manufacturer ?
We are the biggest tool steel factory at Daye & Huangshi. We can provide a wide range of steel products.
Q2:What is alloy steel round bar export packing?
Usually bundling for large diameter,small diameter bars in bulk or as customer's demand.
Q3.What is your MOQ?
We accept small order,if it is stock,any quantities can be accepted.
Q4.What is your lead time?
Depends actual order,around 20-35 days,or negotiation.
Q5.Can you supply sample?
Yes,we can.Sample fee according to your size.
Q6:What certificates do you have?
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Q7: How can I get your quotation as soon as possible?
The email and fax will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours.Please send us your requirement,we will work out a best price soon.
