DIN2391 ST37.4 Carbon Steel Boiler Heat Exchanger Tube 12x1mm NBK Normalized Seamless
Price:
800 - 9000 USD / ton
MOQ:
5T
Delivery Time:
60-75days
Brand:
HDT
Product Description
Carbon Steel Boiler Heat Exchanger Tube DIN2391 ST37.4 NBK
Precision cold drawn seamless steel tubes manufactured to DIN2391 standard, specifically designed for heat exchanger applications in boiler systems and hydraulic/pneumatic equipment.
Product Specifications
Dimensions: 12mm OD × 1mm WT
Steel Grade: ST37.4
Standard: DIN2391
Delivery Status: NBK (+N) - Normalized
Delivery Status Options
Size Range: OD 4-120mm × WT 0.5-15mm
Chemical Composition
| Steel Grade | Material No. | C max | Si max | Mn | P max | S max |
|---|---|---|---|---|---|---|
| St 30 Si | 1.0211 | 0.10 | 0.30 | ≤0.55 | 0.025 | 0.025 |
| St 30 Al | 1.0212 | 0.10 | 0.05 | ≤0.55 | 0.025 | 0.025 |
| St 35 | 1.0308 | 0.17 | 0.35 | ≤0.40 | 0.025 | 0.025 |
| St 45 | 1.0408 | 0.21 | 0.35 | ≤0.40 | 0.025 | 0.025 |
| St 52 | 1.0580 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
Note: Alloying elements may include Nb ≤0.03%, Ti ≤0.03%, V ≤0.05%, with total Nb+Ti+V ≤0.05%
Additional Steel Grades
| Steel Name | Steel Number | C max | Si max | Mn | P max | S max | Al min |
|---|---|---|---|---|---|---|---|
| E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - |
| E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | - |
Processing Information
Normalized (NBK): Final cold forming process followed by annealing above the upper transformation point in a controlled atmosphere environment.
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Company
ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Location
Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
Contact Person
Yolanda Zou