DIN2391C ST52.4 High Pressure Seamless Pipe 4-120mm OD with NBK Annealing and Phosphating for Hydraulic Systems
Price:
800 - 9000 USD / ton
MOQ:
5T
Delivery Time:
60-75days
Brand:
HDT
Product Description
High Pressure Annealed Seamless Pipe DIN2391C ST52.4
DNV GL approved high pressure seamless boiler tubes manufactured to DIN2391C ST52.4 standards with NBK normalized heat treatment and phosphating surface finish. Precision cold drawn for hydraulic and pneumatic applications.
Product Specifications
Delivery Status: NBK (+N) BKW (+LC) GBK (+A) BKS (+SR) BK (+C)
Dimensions: OD × WT = 4-120mm × 0.5-15mm
Heat Treatment Process
Normalized (NBK) - Final cold forming followed by annealing above upper transformation point in controlled atmosphere
Chemical Composition
| Steel Grade | Material Number | 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 |
Optional alloying elements: Nb ≤0.03%, Ti ≤0.03%, V ≤0.05%, 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 | - |
Certification
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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