| Customization: | Available |
|---|---|
| Standard: | AISI, GB, JIS, DIN |
| Application: | Tool Steel Bar, Die Steel Bar |
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Hot Work Tool Steel AISI H21/1.2581 For Dies, Forging and Casting Tools
H21 Tool Steel is a tungsten-based hot work steel that falls under the ASTM A681-1999 Steel Grade standard. Known for its excellent toughness and high temperature strength, H21 is commonly used in hot working applications. Otai Special Steel, a leading supplier in China, offers H21 tool steel in various forms including round bar, plate, flat bar, square, and forging rings. Custom shapes are also available, with additional processing services such as cutting, sawing, milling, and machining.
Similar Grades
| ZEICIN Grade | GB | AISI/UNS | DIN/EN | JIS |
| H21 | 3Cr2W8V | H21/T20821 | 1.2581/X30WCrV9-3 | SKD5 |
| C | Si | Mn | P | S | Cr | W | V | |
| 1.2581/X30WCrV9-3 | 0.25-0.35 | 0.15-0.30 | 0.20-0.40 | ≤0.035 | ≤0.035 | 2.50-2.80 | 8.00-9.00 | 0.30-0.40 |
| H21/T20821 | 0.25-0.36 | 0.15-0.50 | 0..15-0.40 | ≤0.030 | ≤0.030 | 3.00-3.75 | 8.50-10.00 | 0.30-0.60 |
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| Process | Temperature Range | Description |
|---|---|---|
| Annealing | 885°C | Heat and cool at 4°C per hour; hardness 235 HBS max. |
| Hardening (Quenching) | Salt bath furnace: 1177°CControlled atmosphere furnace: 1191°C | Heat for 5-15 minutes, air cool after quenching. |
| Tempering | 552°C | Temper to achieve hardness of 52 HRC or higher. |
Aluminum alloy die-casting molds for mass production
High-temperature mechanical applications
Tools requiring high flexibility and heat stability
Molds with good wear resistance and process performance
Suitable for working temperatures up to 650°C
Q1: Do you accept trial orders?
A1: Yes, we accept trial orders, provided that the required size and model are in stock.
Q2: What is your delivery time?
A2: If the products are in stock, the delivery time is generally 5-15 days. If the products are out of stock, the delivery time may range from 15-20 days, depending on the order quantity.
Q3: Do you offer discounts for bulk orders?
A3: Yes, we offer discounts for bulk orders. The specific discount will depend on the order quantity and terms of cooperation. Please feel free to contact us for more details.
Q4: What is your product packaging like?
A4: Our products are packaged in standard industrial packaging to ensure safety during transportation. If you have specific packaging requirements, please let us know when placing the order, and we will package your items accordingly.
Q5: What payment methods do you support?
A5: We accept a variety of payment methods, including T/T, L/C, Alipay, PayPal, etc. The specific payment method can be arranged flexibly based on the order amount and customer needs.
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