Guangzhou Changfeng Steel Co., LTD
| Payment Terms | T/T, L/C |
| Supply Ability | 1000 tons/month |
| Delivery Time | 10-15 working days |
| Packaging Details | Standard export packing |
| Production Process | EAD+LF+VD |
| UT | Sep 1921-84 Class C/C D/D E/E |
| Surface | Black or Machined |
| Payment | L/C or T/T |
| Shape | Plate or Flat bar |
| Brand Name | CF Steel |
| Model Number | , P21 |
| Certification | ISO SGS MTC |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1000 tons/month |
| Delivery Time | 10-15 working days | Packaging Details | Standard export packing |
| Production Process | EAD+LF+VD | UT | Sep 1921-84 Class C/C D/D E/E |
| Surface | Black or Machined | Payment | L/C or T/T |
| Shape | Plate or Flat bar | Brand Name | CF Steel |
| Model Number | , P21 | Certification | ISO SGS MTC |
| Place of Origin | CHINA | ||
| High Light | mould steel material ，p20 mold steel | ||
/ P21 Pre-Hardened with HRC37-43 Plastic Mold Steel Plate
is a pre-hardened plastic mold steel.Factory hardness can reach HRC37-43.
Have a good polishing performance and carving, good electrical discharge.Use in the mirror polishing mold, auto parts discharge Processing die.The thickness of not more than 2MM thin sheet, efficient blanking die, punching die and embossing mold, all kinds of scissors, mosaic blade, woodworking blade, thread rolling and wear slider, cold heading die, thermosetting resin Forming mold, deep drawing die, cold extrusion die.
Grade: , P21
Hardness: 37-43HRC
1. Chemical composition:
| Grade | C | Si | Mn | P | S | Ni | Mo | Cu | Al |
| 0.06-0.20 | ≤0.35 | 1.40-1.70 | ≤0.030 | ≤0.030 | 2.80-3.40 | 0.20-0.50 | 0.80-1.20 | 0.70-1.30 | |
| P21 | 0.10-0.18 | ≤0.35 | 1.70-2.0 | ≤0.030 | ≤0.030 | 2.90-3.40 | 0.20-0.50 | 0.80-1.20 | 0.70-1 |
2. Specification:
| SIZE | Round bar | Diameter(mm) | Length(mm) | |
| Max 600 | Max 9000 | |||
| Plate | Thickness(mm) | Width(mm) | Length(mm) | |
| Max 800 | Max 2200 | Max 5800 | ||
| The above is our regular size, We also can provide customized sizes! | ||||
3. Features:
1), prehardened steels,Without any heat treatment(state as delivered,age hardening:HRC37~42ºC
2),The most suitable for mirror polishing machining of hardened steel,Have good electro discharge machining features;
3), Frist-rate after processing the surface,Can replace engraved processing;
4), In the discharge machining (edm)Surface hardness does not increase, can simplify subsequent processing operations;
5), Good weldability, Chip table do not hardening,Can make the subsequent process is simple;
6), Good toughness and excellent mechanical properties, reduce worry rupture, etc;
4. Application:
Commonly used in mirror polishing mold, dust proof, filter plate of the television, cosmetics boxes, precision wrinkles processing mould, office automation equipment, auto parts electro discharge machining mould;
1,) Thin plate thickness is not more than 2 mm, efficient and blanking die, punching die and stamping die;
2), Thread rolling moulding and wear-resisting slider;
3), Deep drawing forming die, cold extrusion dies;
5. Recommend heat treatment:
| Quenching | Tempering | ||||
| Heating temperature | Cooling | Hardness/HRC | Heating temperature | Cooling | Hardness/HRC |
| 840-870 | OIL | 50-55 | 200-500 | AIR | 37-43 |
6. Technical service:
Surface treatment of die and mould vacuum heat treatment (nitrogen and oxygen, carbon and nitrogen, carburizing, nitriding)
7. Our service for you
Pre-sale service
1) Sample can be offered with sample charge can courier fee by buyer's side;
2) We have full stock, and can deliver within short time. Many styles for your choices;
3) Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you;
4) All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
After you choose
1) We will count cheapest shipping cost and make invoice to you at once;
2) Check quality again, then send out to you at 1-2working day after your payment;
3) Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale choose
1) We are very glad that customer give us some suggestion for price and products;
2) If any question, please contact with us freely by e-mail or telephone.
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2012
Total Annual:
5000000-10000000
Employee Number:
100~120
Ecer Certification：
Active Member
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Struct... Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Struct...
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