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| Steel Grade | 420ESR |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 48-52 HRC |
| MOQ | 1 piece |
| Lead Time | 1–3 days after confirmation |
| Shipping From | Dongguan City, China |
420ESR Mold Steel, Plastic Mold Steel
420ESR Acid-Resistant Mold Steel—Suitable for Corrosive Plastics like PVC, PP Injection Molding
Because of its exceptional resistance to corrosion and acid, as well as its 48–52 HRC quenching hardness, 420ESR plastic mold steel is well known for extending the life of molds in challenging conditions. It can be used with injection molds made of PVC, PP, EP, PC, and PMMA plastic.
Precision Cutting to Your Dimensions
1 Piece MOQ
Cutting & Machining Services Available
Rapid Delivery Available
Worldwide Door-to-Door Delivery
$0.00
Additional information
Description
ServicesFull Machining Services
Comprehensive machining capabilities for complete mold steel processing.
Mold Steel Customization Process
Get a Quote Now
01
Choose The Right Steel Model
02
Confirm Size And Arrange Cutting
03
Precision Grinder Grinds Both Sides
04
Edge Milling Machine Rough Milling Four Sides
05
Cnc Double-Head Milling and Fine Milling On Four Sides
06
Gantry Milling and Rough Milling On Both Sides
07
Die Steel Chamfer
08
Mold Steel Marking
09
Size Check
10
Flaw Detection
11
Mold Steel Spectral Composition Detection
12
Tolerance Inspection
13
Hardness Testing
14
Pack and Ship
15
Ship By Air, Land, or Sea
Our Workshop
Workshop & Machining Equipment
Equipped with advanced machinery to ensure quality, precision, and consistency.
Steel Plate Edge Chamfering & Deburring Machine
Four-Head CNC Precision Milling Machine for Mold Steel Plates
Heavy-Duty Horizontal Band Saw for Mold Steel Cutting
Heavy-Duty Vertical Band Saw for Mold Steel Plates
Gantry CNC Milling Machine for Steel Plate Machinin
Precision Surface Grinder for Steel Blocks and Plates
Heat Treatment Equipment for Mold Steel Blocks and Plates
Wire EDM Machines for Precision Steel Components
Precision Surface Grinding Machines for Small Steel Components
CNC Machining & EDM Centers for Precision Steel Components
Manual Milling Machines for Precision Steel Components
Die-Sinking EDM Machines for Precision Mold Steel Parts
CMM and Measuring Equipment for Precision Steel Parts
Assembly Workshop for Precision Mold Steel Components
CNC Gantry Drilling and Milling Machine for Large Steel Plates
Why Choose Moldsteells?
Professional, reliable, and efficient service
Strong Inventory Capacity
Ample stock available and a wide range of models to choose from for your mold steel requirements.
Pricing Anchor
Factors: grade · thickness · length/weight. Example: P20, 30×100×500 mm, Qty 2 → From US$ — (cut & pack)
Ready to Get Your Mold Steel Solution?
Professional mold steel wholesale supplier with extensive inventory, competitive pricing, and reliable quality. Get cut-to-size steel bars delivered on time.
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Lead Time
Cut-only: 1–3 days to ship. + Heat treatment: 5–7 days. Door-to-door: 5–10 business days (US/EU/AU)
Accuracy & Guarantee
Tolerance: ±1–2 mm. Guarantee: Free re-cut or refund if out of spec.
What types of mold steel do you offer?
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We provide various mold steel grades, including P20, 718, NAK80, S136, H13, and more. These include plastic injection molds, die casting molds, and precision components.
Do you offer cutting and machining services?
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Yes. Based on your drawings and requirements, we offer complete machining services, including precision cutting, surface milling, CNC roughing, drilling, tapping, and even heat treatment.
Can I order a custom size or shape?
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Absolutely. Just send us your drawings or specifications. We can cut to exact dimensions and also provide additional processing, such as chamfering, hole drilling, and slotting.
What is your Minimum Order Quantity (MOQ)?
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We accept orders starting from 1 piece. We support you whether you need a sample or a small batch for testing.
How long does it take to deliver?
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Generally, most cut-to-size orders ship within 3–5 working days. Please allow more time for complex machining or heat-treated parts. We will confirm the lead time upon order confirmation.
Do you provide quality reports?
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Yes. Upon request, we can provide hardness test results, material certificates, and dimensional inspection reports.
Where are your products shipped from?
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All orders are processed and shipped from our facility in Dongguan, China.
How do you package the mold steel for export?
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What payment methods do you accept?
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We support Bank Transfer (T/T), PayPal, Western Union, and Alibaba Trade Assurance for secure and convenient transactions.
Can you assist me in selecting the right steel for my mold?
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Of course! Our engineers can review your product and mold design to recommend the most suitable steel grade based on your application, durability needs, and budget.
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