40Cr 41Cr4 5140 Seamless Cold Rolled Steel Tubes
Alloy Steel Automotive Seamless Precision Steel Tubes
Size Range: OD: 6-168mm, WT: 1-25mm, Length: 5.8m/6m, maximal 11.8m
Cold Rolled process on the seamless steel tubes, to reach high accuracy on the OD and WT tolerance
| Product Name | 40Cr / 41Cr4 / 5140 Seamless Cold Rolled Steel Tube for Automotive Parts |
| Material | 40Cr / 41Cr4 / 5140 |
| Delivery Condition | BK, BKW, BKS, GBK, NBK |
| Standard | DIN2391 / EN10305-1 / GB/T3639 |
| Size Range | OD: 6-88mm, WT: 1-15mm |
| Application | High precision purpose, auto parts, oil cylinder, etc |
| Round Billet | Bao Steel, Xingcheng Steel, Huai Steel, Zhongtian Steel |
| Keyword | Cold Rolled Steel Tube |
| Certificate | TS16949, ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 45 days |
| Packing | Bundles or Wooden Boxes |
40Cr
Chemical Component: C: 0.37-0.44, Si: 0.17-0.37, Mn: 0.50-0.80, Cr: 0.80-1.10
Mechanical Property: According to Standard requirements.
Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Rolling, On line inspection
5. Heat Treatment:BKS, GBK, NBK
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.
FAQ:
1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.
You need to in charge of Express costs.
2. How about your production capacity?
3000 tons/Month.
3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.
4. Where is your factory?
Jiaxing city, 2 hours away from Shanghai.
5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements
6. How about the minimum order quantity?
Normally for one size above 1 ton.
Welcome to contact us! Thanks.
