20MnB5 1.5530 Steel Quenched and Tempered Slip On Plate Flange and Steel Forged Flange
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Product Description
20MnB5 Slip On Plate Flanges 1.5530 Steel Forged Plate Flanges
Material Specifications
| Grade | 20MnB5 |
| Number | 1.5530 |
| Classification | Alloy special steel with boron |
| Standard | EN 10083-3:2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels |
Chemical Composition (%) - EN 10083-3-2006
| C | Si | Mn | P | S | B |
|---|---|---|---|---|---|
| 0.17 - 0.23 | max 0.4 | 1.1 - 1.4 | max 0.025 | max 0.035 | 0.0008 - 0.005 |
Mechanical Properties
Tensile Strength (Rm) - MPa (+QT)
| Nominal Diameter (mm) | to 16 | 16 - 40 |
|---|---|---|
| Rm | 900-1050 | 750-900 |
Yield Strength (Re/Rp0.2) - MPa (+QT)
| Nominal Diameter/Thickness (mm) | to 16 | 16 - 40 |
|---|---|---|
| Re/Rp0.2 | 700 | 600 |
Elongation (A) - % (+QT)
| Nominal Thickness (mm) | to 16 | 16 - 40 |
|---|---|---|
| A | 14 | 15 |
Reduction in Cross Section (Z) - % (+QT)
| Nominal Diameter/Thickness (mm) | to 16 | 16 - 40 |
|---|---|---|
| Z | 55 | 55 |
Equivalent Grades
| EU EN | Germany DIN, WNr | France AFNOR | England BS |
|---|---|---|---|
| 20MnB5 | 19MnB4 | 20MB5 | 170H20 |
Property Definitions
- ReH - Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d'elasticite minimale
- Rm - Tensile strength / Zugfestigkeit / Resistance a la traction
- A - Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal
- J - Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc
Heat Treatment Conditions
| +A | Soft annealed | +P | Precipitation hardened |
| +AC | Annealed to achieve spheroidization of the carbides | +PE | Peeled |
| +AR | As rolled | +QA | Air quenched and tempered |
| +AT | Solution annealed | +QL | Liquid quenched and tempered |
| +C | Cold drawn / hard | +QT | Quenched and tempered |
| +CR | Cold rolled | +S | Treated to improve shearability |
| +FP | Treated to ferrite-pearlite structure and hardness range | +SH | As rolled and turned |
| +I | Isothermal annealing | +SR | Cold drawn and stress relieved |
| +LC | Cold drawn / soft | +T | Tempered |
| +M | Thermo mechanical rolling | +TH | Treated to hardness range |
| +N | Normalized | +WW | Warm worked |
| +NT | Normalized and tempered | +U | Untreated |
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Company
BEST PIPELINE EQUIPMENT CO.,LTD
Location
China Factory : Suzhou Industrial Park, JiangSu Province,China
Contact Person
amy