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JIS SKD61 Steel
JIS SKD61 mold steel offers an excellent combination of shock and abrasion resistance, and possesses good hardness. It is capable of withstanding rapid cooling and resists premature heat checking. Alloy steel SKD61 has good machinability, good weldability, good ductility, and can be formed by conventional means.
- HONGXIN
- DAYE
- 30 DAYS
- 8000 TON/MONTH
- Information
JIS SKD61 Hot Worked Alloy Mold Steel
1:The features of JIS SKD61 Hot Worked Alloy Mold Steel
High level of toughness and ductility
Good resistance to abrasion at both low and high temperatures
Good high-temperature strength and resistance to thermal fatigue
Uniform and high level of machinability and polishability
2:There are similar steel grades in different countries
| Country | China | Japan | Germany | USA |
| Standard | GB/T 1299-2014 | JIS G4404 | DIN EN ISO | ASTM A681 |
| Grade | 4Cr5MoSiV1 | SKD61 | 1.2344/X40CrMoV5-1 | H13 |
| Grade | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| 4Cr5MoSiV1 | 0.32 | 0.45 | 0.2 | 0.5 | 0.03 | 0.02 | 0.8 | 1.2 | 4.75 | 5.5 | 0.8 | 1.2 | 1.1 | 1.75 |
| H13 | 0.32 | 0.45 | 0.2 | 0.6 | 0.03 | 0.03 | 0.8 | 1.25 | 4.75 | 5.5 | 0.8 | 1.2 | 1.1 | 1.75 |
| 1.2344 / X40CrMoV5-1 | 0.35 | 0.42 | 0.25 | 0.5 | 0.03 | 0.02 | 0.8 | 1.2 | 4.8 | 5.5 | 0.85 | 1.15 | 1.1 | 1.5 |
| SKD61 | 0.35 | 0.42 | 0.25 | 0.5 | 0.03 | 0.02 | 0.8 | 1.2 | 4.8 | 5.5 | 0.8 | 1.15 | 1.0 | 1.5 |
4:JIS SKD61 Hot Worked Alloy Mold 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:JIS SKD61 Hot Worked Alloy Mold Steel Overviews
| Size | Round | Dia 12-500mm | |
| Plate/Flat/Block | Thickness 8mm-80mm | ||
| 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 / D/P / Money gram / Paypal | ||
| Trade terms | FOB/CIF/CFR/FCA/etc. | ||
| Packing | standard packages or as per customers request. | ||
| Delivery time | 30-45 days | ||
| Application | JIS SKD61 Hot Worked Alloy Mold Steel are suitable for dies, backers, die-holders, liners, dummy blocks, stems, Injection molds compression/ transfer molds, severe cold punching, scrap shears, hot shearing, shrink rings (e.g. for cemented carbide dies), wear-resisting parts etc. | ||
6.Heat Treatment
Annealing
Heat slowly to 1550°-1650°F, hold until entire mass is heated through, and cool slowly in the furnace (40°F per hour) to about 1000°F, after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.
Stress Relieving
When desirable to relieve the strains of machining, heat slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving).
Preheat Prior to Hardening
Warm slightly before charging into the preheat furnace, which should be operating at 1400°-1500°F.
Hardening
JIS SKD61 hot worked alloy mold steel is a steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. The temperature employed is usually 1800°-1850°F, depending on size section.
Quenching
Quench in still air or dry air blast. If complicated forms are to be hardened, an interrupted oil quench can be used. Quench part in oil and remove from bath when it just loses its color (1000°-1100°F). Finish cooling to below 150°-125°F in air, then temper immediately.
Tempering
Tempering practice may vary with size and application, but is usually performed in the range of maximum secondary hardness or higher. Double tempering is recommended. The results below is JIS SKD61 hot worked alloy mold steel that was air quenched from 1800°F and tempered for 4 hours at various temperatures. The results may be used as a guide, keeping in mind that parts of heavy section or mass may be several points lower in hardness.
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
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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.
