Guangzhou Changfeng Steel Co., LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 1000t/Month |
| Delivery Time | 15-20 days |
| Packaging Details | bulk packing |
| Production Route | Ef/Eaf+Lf+Vd/ESR |
| Shape | Round Bar |
| Heat treatment | Annealing or Q/T |
| Test | SGS/ UT 100%/ Element Testing |
| Diameter | 20-150mm |
| Technology | Hot rolled |
| 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 | L/C, T/T | Supply Ability | 1000t/Month |
| Delivery Time | 15-20 days | Packaging Details | bulk packing |
| Production Route | Ef/Eaf+Lf+Vd/ESR | Shape | Round Bar |
| Heat treatment | Annealing or Q/T | Test | SGS/ UT 100%/ Element Testing |
| Diameter | 20-150mm | Technology | Hot rolled |
| Brand Name | Changfeng | Model Number | 1.7225 SCM440 SAE4140 |
| Certification | ISO/ Mill Certificate | Place of Origin | China |
| High Light | engineering special steels ，h13 tool steel | ||
SAE 4140 1.7225 SCM440 Tool Steel Bar for mechchanical
SAE 4140 1.7225 SCM440 has good wear resistance, toughness, and good ductility in the quenched and tempered condition. This grade can also be supplied as turned ground and polished for tighter dimensional tolerances for bearing fitting applications.
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 |
| 20-280 | 2000-2200 | 2000-10000 | 20-150 | 3000-6000 |
Recommend heat treatment:
| Quenching | Tempering | |||||
| Heating temperature/ºC | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Cooling way | Hardness (HRC) | |
| 850-880 | Oil Cooling | 50-52 | 450-650 | Air cooling | ≥48 | |
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.
Ready stock : round bar dia 20-150mm
Delivery time:
For abundant stock, 15-20 days.
For customized products, 30-50 days.
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.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
Product show
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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