NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
| Payment Terms | T/T |
| Supply Ability | 3000 tons/month |
| Delivery Time | 45 days |
| Packaging Details | Bundles Package, Wooden Box Package |
| Product Name | DIN2391 St35 NBK Seamless Precision Steel Tubes |
| Delivery Condition | NBK |
| OD Size | 6-88mm |
| WT Size | 1-15mm |
| Standard | DIN2391 St35 NBK |
| Application | High precision purpose, auto parts, oil cylinder, etc |
| Steel Material | St35 , St45 , St52 |
| Heat Treatment | NBK (Bright Annealing) |
| Brand Name | New Era |
| Model Number | DIN2391 St35 NBK |
| Certification | ISO9001,TS16949 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000 tons/month |
| Delivery Time | 45 days | Packaging Details | Bundles Package, Wooden Box Package |
| Product Name | DIN2391 St35 NBK Seamless Precision Steel Tubes | Delivery Condition | NBK |
| OD Size | 6-88mm | WT Size | 1-15mm |
| Standard | DIN2391 St35 NBK | Application | High precision purpose, auto parts, oil cylinder, etc |
| Steel Material | St35 , St45 , St52 | Heat Treatment | NBK (Bright Annealing) |
| Brand Name | New Era | Model Number | DIN2391 St35 NBK |
| Certification | ISO9001,TS16949 | Place of Origin | China |
| High Light | NBK Thin Wall Steel Tubing ，St35 Thin Wall Steel Tubing ，DIN2391 Thin Wall Steel Tubing | ||
DIN2391 ST35 NBK Seamless Precision Steel Tubes
Seamless Carbon Cold Drawn / Cold Rolled Precision Steel Tubes
Material: St35
Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
Delivery Condition: BK, BKW, BKS, GBK, NBK
Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc.
Stable Quality with Comeptitive Price.
+N(Bright Annealing) Heat Treatment, Surface is bright and smooth, without oxide scale
Good Extending and Bending Ability.
Delivery Conditions
The tubes shall be manufactured from cold drawn or cold rolled processes. The tubes shall be supplied in one of the delivery conditions as follows:
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
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 Drawing or Cold Rolling, On line inspection
5. Heat Treatment:+SR, +A, +N
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.
| Product Name | DIN2391 st35 NBK Seamless Precision Steel Tubes |
| Material | St35 |
| Delivery Condition | BK, BKW, BKS, GBK, NBK |
| Standard | EN10305-1 / DIN2391 / EN10305-4 |
| Size Range | OD: 6-88mm, WT: 1-15mm |
| Application | High precision purpose, auto parts, oil cylinder, etc |
| Round Billet | Bao Steel, Xingcheng Steel, Zhongtian Steel |
| Keyword | Seamless Steel Tube |
| Certificate | TS16949, ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 45 days |
| Pakcing | Bundles or Woodern Boxes |
| Steel Grade | Chemical Composition | |||||
| Symbol | Material Number |
C Max. |
Si Max. |
Mn |
P Max. |
S Max. |
| ST35 | 1.0308 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST45 | 1.0408 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST52 | 1.0580 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
| Steel Grade | BK | BKW | BKS | |||||
| Name | No. |
Rm Mpa |
A % |
Rm Mpa |
A % |
Rm Mpa |
ReH Mpa |
A % |
| ST35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 |
| ST45 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 |
| ST52 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450 | 10 |
| Steel Grade | GBK | NBK | ||||
| Name | No. |
Rm Mpa |
A % |
Rm Mpa |
ReH Mpa |
A % |
| ST35 | 1.0308 | 315 | 25 | 340--470 | 235 | 25 |
| ST45 | 1.0408 | 390 | 21 | 440--570 | 255 | 21 |
| ST52 | 1.0580 | 450 | 22 | 490--630 | 355 | 22 |
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.
Company Details
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
100000000-15000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int... Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int...
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