Guangzhou Changfeng Steel Co., LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 1000tons/month |
| Delivery Time | 7-15days |
| Packaging Details | standard/customized |
| Diameter | 16-450mm |
| Heat Treatment | Annealing/Q+T |
| Technology | Hot Rolled/Forged |
| Test | SGS/Ut100%/Elements Testing |
| Shape | round bar |
| Application | mechanical |
| Brand Name | CF Steel |
| Model Number | SAE4140,1.7225,SCM440,EN19, 42CrMo4 |
| Certification | ISO/TUV/SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1000tons/month |
| Delivery Time | 7-15days | Packaging Details | standard/customized |
| Diameter | 16-450mm | Heat Treatment | Annealing/Q+T |
| Technology | Hot Rolled/Forged | Test | SGS/Ut100%/Elements Testing |
| Shape | round bar | Application | mechanical |
| Brand Name | CF Steel | Model Number | SAE4140,1.7225,SCM440,EN19, 42CrMo4 |
| Certification | ISO/TUV/SGS | Place of Origin | China |
| High Light | hot rolled alloy steel round bar ，hot rolled steel round bar | ||
1.7225/SAE4140/SCM440/42CrMo4 Hot Rolled Alloy Steel Bar for mechanical
Perform Standard: GB/T 3077-1999
| C | Si | Mn | Cr | Mo | P | S | Ni |
| 0.38~0.45 | 0.17~0.37 | 0.60~0.90 | 0.90~1.20 | 0.15-0.25 | ≤0.018 | ≤0.030 | ≤0.012 |
1, Application
It used for section large forgings, such as locomotive traction gears, with supercharger drive gear,
the rear axle, the connecting rod and the spring load greatly clip,oil drill pipe joints and fishing tools,etc.
2, Feature
1) Weldability suffers with increasing chromium content;
2) High temperature strength and high pressure hydrogenation properties are promoted by chromium
and molybdenum;
3) Molybdenum significantly reduces temper brittleness;
4) Chromium renders steel oil hardenable and increase hardenability;
5) Chromium molybdenum high tensile steel with yield strength of 550N/mm2;
3,Mechanical Properties:
Tensile strength:σb (MPa):≥1080(110)
Yield strength:σs (MPa):≥930(95)
Elongation:δ5 (%):≥12
Section shrinkage:ψ (%):≥45
Impact work:Akv (J):≥63
Impact toughness value:αkv (J/cm²):≥78(8)
4,Ready Stock:
| Grade | Size(mm) | ||
| SCM440 Plate | Thickness | Width | Length |
| 20-280 | 2200 | 5800 | |
| SCM440 Round Bar | Diameter | Length | |
| 16-450 | 3000-6000 | ||
5,Delivery state:
Hot rolled, Heat Treatment,black, hardness or tempered hardness:28-34 HRC.
Annealing:HBS<=235.
6, Delivery time
For abundant stock, 7-15 days.For customized products, 30-50 days.
We have full set of equipement (sawing machine/grinding/polishing machine) to make customer's specification.
Listed specifications are only typical grades; products of required specifications can be developed/
produced per international, Chinese or industry standards, or based on agreements with customers.
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Strict Quality Control
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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.
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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