Guangzhou Changfeng Steel Co., LTD
| Payment Terms | T/T, L/C |
| Supply Ability | 1000t/Mouth |
| Delivery Time | 15-20 days |
| Packaging Details | bulk packing/wooden case |
| Diameter | 20-450mm |
| Heat Treatment | Annealing/Q+T |
| Test | SGS/Ut100%/Elements Testing |
| Technology | Hot Rolled |
| HS code | 7228300000 |
| Brand Name | Changfeng |
| Model Number | 1.7225 SCM440 SAE4140 |
| Certification | ISO/ Mill Certificate |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1000t/Mouth |
| Delivery Time | 15-20 days | Packaging Details | bulk packing/wooden case |
| Diameter | 20-450mm | Heat Treatment | Annealing/Q+T |
| Test | SGS/Ut100%/Elements Testing | Technology | Hot Rolled |
| HS code | 7228300000 | Brand Name | Changfeng |
| Model Number | 1.7225 SCM440 SAE4140 | Certification | ISO/ Mill Certificate |
| Place of Origin | CHINA | ||
| High Light | carbon tool steel ，hardened tool steel | ||
Tool steel Round Bar SAE4140/SCM440 for alloy steel with diameter 20-450mm
Tool steel Round Bar SAE4140/SCM440 for alloy steel with diameter 20-450mm
Chemical composition(%):
| C | Si | Mn | Cr | P | S | Mo |
| 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | ≤0.035 | ≤0.035 | 0.15-0.25 |
Equivalent grades:
| GB(China) | DIN(German) | AISI(USA) | JIS(Japan) |
| 42CrMo | 1.7225 | SAE4140 | SCM440 |
Available size(mm):
| Flat Bar Size(mm) | Round bar Size(mm) | |||
| Thickness | Width | Length | Diameter | Length |
| 13-280 | 200-2200 | 2000-10000 | 20-260 | 3000-6000 |
Feature:
1. Good strength, hardenability and toughness.
2. High creep strength and long lasting strength under the high temperature.
Appliation:
Production load large, complex shape and valuable tool (e.g, scraper, gear, milling cutter, drilling, tapping, etc.)Cold forging die, forging tools;Strip cutting machine, heading forming die.
Hardness:
Anneal≤217HB
Q+T 28-32HRC
Heat Treatment
1) Forging
Preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.
2)Annealing
Heat the AISI 4140 slowly to 800-850°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace to 480°C followed by air cooling.
FAQ:
Q: Are you a manufacturer or merely a trader?
A: We are trading company act as exporting Steel Products with our own factory,
we can manufacture the products as in cutomer's requirement,wholesale and retail all kinds of domestic mould steel,the price we offered is very competitive compared with other agents.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Third,the products we export are mainly from ShaGang group, WenFeng group, XingCheng group, DongTe group,DaYe and so on, the quality are certained.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 30-50 days after receiving your prepayment or firm order.
Q: What is the payment term?
A:100% T/T or 30%T/T deposite prepaid, 70%Balance L/C
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.
Product:
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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