High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars
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Product Highlights
- Wide Material Selection: Available in Ck45, 4140, 4145, Scm440, D2, D3, and other alloy steel grades.
- Customizable Dimensions: Round bars from 16mm to 1000mm diameter, cut to client's specific length.
- Versatile Surface Treatment: Options include bright surface, black surface, peeled, or machined finishes.
- Precision Heat Treatment: Supports QT, normalized, annealing, hardening, and tempering processes.
- Strict Quality Inspection: 100% Ultrasonic testing according to SEP1921-84 and GR.3 CLASS C/C standards.
- Industrial Application: Ideal for crankshafts, gears, and dynamically stressed components in vehicles.
- Flexible Supply Condition: Available in hot forged, hot rolled, or cold finished states based on requirements.
- Standard Compliance: Meets AISI, ASTM, DIN, JIS, and GB international steel standards.
Product Attributes
- Customization
- Available
- Type
- Round
- Standard
- AISI, ASTM, DIN, JIS, GB
- Model NO.
- steel bar
- Composition
- Alloy Steel
- Technique
- Forged
- Shape
- Bar
- Surface Treatment
- Black Sruface or Machining
- Special Use
- Cold Heading Steel, Mold Steel
- Application
- Structural Steel Bar
- Supply Condition
- Hot Forging
- Material
- Alloy or Carbon Steel
- Raw Material
- Steel Ingot or Steel Bloom
- Length
- Cutting to Client's Length
- Surface
- Bright or Black Surface
- Heat Treatment
- Qt or Normalized
- Main Grade
- Ck45 4140 Scm440 4130 4340 8620
- Transport Package
- Seaworthy Packaging
- Specification
- 200mm-1000mm
- Trademark
- shangdong
- Origin
- China
- Production Capacity
- 5000tons
Product Images of High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars
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High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars -
High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars -
High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars -
High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars -
High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars -
High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars -
High-Quality Ck45 4140 4145 Scm440 D2 D3 Forging Bars
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Product Description
Hot forging steel bar
Forged parts
SCM440 SCM435 4130 4140 4145 forged bars
1.Chemical Composition (%):
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 42CrMo4 | 0.38-0.45 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 |
| 1.7225 | 0.38-0.45 | ≤0.40 | 0.60-0.90 | ≤0.025 | ≤0.035 | 0.90-1.20 | 0.15-0.30 |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
Round: Dia. 16 - 1000mm
16mm-350mm with hot rolled supply condition;
200-1000mm with forged supply condition
3.Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
4.Applications:
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
5.Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
7. Packing situation: standard seaworthy packing or as customer required
8. Delivery time: 30 days after order confirmed
9. Process: EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional)
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About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR195945". Items marked "
" are certified.
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Company Profile
SHANDONG DAJIN METAL MATERIAL Co., Ltd. is a company of special steel stocklist&exporter, Dajin has been suppling high-quality metals to customers worldwide since 2010, with almost 10 years metal export experience, Dajin Metal focus on cold drawn bars in carbon&alloy in round, hex, and square that meet ASTM, SAE and JIS specifications and standards.
Who is the members of Dajin?
1. Professional steel technical staff
With the ability of metallurgical, rolling, forging, heat treatment, UT testing, metallographic analysis etc. Under this professional knowledge and testing capabilities, Dajin can provide the professional services to client from all over the world.
2. Rich resources of steel
In the aspect of resources and information, we have established cooperative relationship with many mills, either state-owned or private owned in China, such as: Baosteel, Shagang, HBIS, Tisco, Valin, Shansteel etc. Under this high quality steel resources, Dajin can provide the best quality based on client's target price.
3. Professional export staff
Dajin has professional export staff with 10 years steel export experience. It can provide GB, American standard, German standard, Japanese standard, industry standard and special steel product according to customer's special requirements. It can also provide customized service according to customer's requirement.
What's the products Dajin supply?
1. Black steel bars: Hot rolled round bar(dia: 16mm-350mm), forged steel bar(Dia: 200mm-1000mm), forged ring&forged parts(according to drawing), with over 1, 000 tons stock.
2. Precision finishing steel rod: Steel bar and steel pipe.
Main shape: Hex, round, square bar and flat; QT steel bar and turning bars. We have our own deep processing factory, heat treatment furnance and compelete inspection equipments.
Dajin always keep 1000-1500tons ready stock of cold darwn steel bar/hot rolled steel rod with grade 1215, 12L14, SUS303 Cu, SS400, 1020/1018, 1045 and 4140, size range 5mm-300mm. MOQ can be 2tons, average delivery time 10-15days. Welcome all client's order and sample request.
About Our Factory & Business Background
- Address
- Guanli Road, Fengcheng Industry Zone, Laicheng District, Laiwu, Shandong, China
- Terms of Payment
- LC, T/T, D/P, Western Union
- International Commercial Terms(Incoterms)
- FOB, CFR, CIF, FAS, DDP, CPT, FCA, EXW
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- Qingdao port, Tianjin port, Shanghai port
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2017-03-04
- Main Markets
- North America, South America, Southeast Asia, Africa, Oceania, Eastern Asia
FAQ
- What are the available material grades?
- We supply Ck45, 4140, 4145, Scm440, D2, D3, 4130, 4340, and 8620 alloy steel bars.
- What is the diameter range for these bars?
- Diameter ranges from 16mm to 1000mm, with specific conditions for hot rolled vs forged supplies.
- Can the length be customized?
- Yes, we offer cutting to the client's specific length as a customizable option.
- What surface treatments are available?
- Options include bright surface, black surface, peeled, or machined finishes.
- What is the typical delivery time?
- Delivery takes 30 days after order confirmation, or within 15 workdays during off-season.
- What quality inspections are performed?
- 100% Ultrasonic testing is conducted according to SEP1921-84 and GR.3 CLASS C/C standards.
- What are the payment terms?
- We accept LC, T/T, D/P, and Western Union for payments.
- What are the main applications for these bars?
- They are used for crankshafts, gears, and statically/dynamically stressed components in vehicles and engines.
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