AIS S7 Hot Worked Mold Steel
1. Tool and die making: AISI S7 is often used in the manufacturing of molds, dies, and other tooling components due to its high impact resistance and good machinability.
2. Cold work applications: AISI S7 is also commonly used in cold work applications such as blanking, forming, and drawing due to its high wear resistance and good toughness at low temperatures.
3. Punches and chisels: AISI S7 is a popular choice for making punches, chisels, and other cutting tools due to its high impact resistance and ability to retain sharp edges.
4. Metal forming: AISI S7 is used in metal forming applications such as forging and extrusion dies due to its high strength and toughness.
5. Woodworking tools: AISI S7 is also used in the manufacturing of woodworking tools such as chisels, plane blades, and carving tools due to its excellent edge retention and toughness.
- HONGXIN
- DAYE
- 30 DAYS
- 8000 TON/MONTH
- Information
AIS S7 Hot Worked Mold Steel
1: AIS S7 steel introduction
AIS S7 tool steel is a shock-resistant air hardening steel. AIS S7 steel has exceptional impact properties plus the highest hardenability of shock resisting grades of tool steel. Steel AIS S7 also possesses good softening resistance at high temperatures which gives it hot work capabilities. Since AIS S7 steel hardens in air, it is also safe and stable in heat treatment.
AIS S7 tools steel has an unusual combination of properties, making it suitable for an extremely wide range of tool and die work - where shock-resistance, medium hot-work properties, or ease of machining and heat-treatment are most important.
2: AIS S7 Steel equivalent
| Country | China | Japan | Germany | USA | UK |
| Standard | GB/T 1299 | JIS G4404 | DIN EN ISO4957 | ASTM A681 | BS 4659 |
| Grade | 1.2355/50CrMoV13-15 | S7/T41907 |
3: AIS S7 steel chemical composition
| Grade | C | Si | Mn | P | S | Cr | V | Mo | ||||||
| S7/T41907 | 0.45 | 0.55 | 0.20 | 1.00 | 0.20 | 0.90 | 0.03 | 0.03 | 3.00 | 3.50 | - | 0.35 | 1.30 | 1.80 |
| 1.2355/ 50CrMoV13-15 | 0.45 | 0.55 | 0.20 | 0.80 | 0.50 | 0.90 | 0.03 | 0.02 | 3.00 | 3.50 | 0.15 | 0.35 | 1.30 | 1.70 |
4: AIS S7 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: AIS S7 steel overviews
| Size | Round | Dia 12-500mm | |
| Plate/Flat/Block | Thickness 8mm-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 | ||
6. AIS S7 Tool Steel Heat Treatment
Annealing
Anneal in a protective atmosphere. Heat rapidly to 1500 to 1550℃ and hold at that temperature for one and one-half hours for each inch of greatest thickness. To obtain best machining properties, cool slowly to 1000℃ and then air-cool. This annealing procedure should produce a hardness of Brinell 197 max.
Stress Relief S7 steel Material: When desirable to relieve the strains of machining, heat slowly to 1050℃-1250℃;allow to equalize, then cool in air.
Hardening
Preheat: Warm steel S7 slightly before charging into the preheat furnace 1200℃;-1300℃;prior to hardening.
Harden: 1750℃;Quench S7 tool steel in air if cross section is 2-1/2″ or smaller; sections 2-1/2″ to 6″ should be oil quenched to black (1000℃) followed by air cooling to 150℃;Larger cross sections of S7 steel should be oil quenched to 150℃.
Quench: Quench in still air or dry air blast.
Temper: Tool steel S7 is normally tempered one hour per inch of section thickness to desired heating rate of 2 hours per inch. Cool in air to room temperature between the two tempers. The tempering temperature varies according to the intended use. Suggested: For cold-working and similar applications, the recommend 400℃-500℃;Hot working applications: apply a tempering temperature of 900℃-1000℃;Never temper at less than 400℃.
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
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.
