AISI H21 Hot Worked Mold Steel
1. Hot work tooling: AISI H21 is often used in the production of hot work tools such as forging dies, extrusion dies, and die casting molds. Its ability to maintain hardness at elevated temperatures makes it well-suited for these applications.
2. Cold work tooling: AISI H21 is also used in cold work tooling applications where high wear resistance and toughness are required. It is commonly used in the production of cutting tools, blanking and forming dies, and punches.
3. Plastic molding: AISI H21 is used in the production of plastic injection molds and extrusion dies due to its high wear resistance and ability to maintain hardness at high temperatures.
- HONGXIN
- DAYE
- 30 DAYS
- 8000T/MONTH
- Information
Standard GOST 5950-2000 ИНСТРУМЕНТАЛЬНАЯ СТАЛЬ.pdf
AISI H21 Hot Worked Mold Steel
1: AISI H21 Steel Introduction
AISI H21 steel is a hot sham W-Cr-Mo Tungsten hot take steps steel partner ASTM A681-1999 Steel Grade suitable. AISI H21 Special Steel China Supplier and factory SAE Special Steel Supply AISI H21 Tool steel in Round bar, Plate, Flat bar, Square, Forging Ring and others any swap. And have the funds for choking, sawing, milled, machining paperwork.
2: AISI H21 Steel Equivalent
| Country | China | Japan | Germany | USA | UK |
| Standard | GB/T 1299 | JIS G4404 | DIN EN ISO4957 | ASTM A681 | BS 4659 |
| Grade | 3Cr2W8V | SKD5 | 1.2581 | H21 |
3: AISI H21 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | W | V |
| H21/T20821 | 0.26~0.36 | 0.15~0.50 | 0.15~0.40 | 0.030 Max | 0.030≤ | 3.00~3.75 | 8.50~10.0 | 0.30~0.60 |
| 1.2581/ X30WCrV9-3 | 0.25~0.35 | 0.15~0.30 | 0.20~0.40 | 0.035 Max | 0.035 ≤ | 2.50~2.80 | 8.00~9.00 | 0.30~0.40 |
| 3Cr2W8V | 0.30~0.40 | ≤0.40 | ≤0.40 | 0.030 Max | 0.030 ≤ | 2.20~2.70 | 7.50~9.00 | 0.20~0.50 |
| SKD5 | 0.25~0.35 | 0.10~0.40 | 0.15~0.45 | 0.030 Max | 0.020 ≤ | 2.50~3.20 | 8.50~9.50 | 0.30~0.50 |
4: AISI H21 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 H21 steel overviews
| Size | Round | Dia 12-500mm | |
| Plate/Flat/Block | Thickness 8mm-300mm | ||
| 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 per customers request. | ||
| Delivery time | 30-45 days | ||
| Application | H21 steel is a Mo content increased by 2%, take possession of to colleague the Mn content, enlarged the high temperature mechanical properties of steel, to run abandoned to the demands of the gathering production of aluminum alloy die-casting mould. The steel has high adaptableness, high heat stability, pleasurable resistance to wear and process play a role, the operational temperature of 650. | ||
6: Heat Treatment
Annealing
Heat to 885C, later cool in heat treatment at not quite 4C per hour. After annealing Hardness 235 HBS Max.
Hardening and Quenching
Quenching | salt bath furnace: 1177 / ℃
Quenching | controlled atmosphere furnace: 1191 / ℃
Heat preservation time: 5 ~ 15 mins
Quenching medium: air cooling
Tempering
Tempering temperature / ℃ : 552
After tempering hardness HRC or higher: 52
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.
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.
