EN 10028-6 P690QL1 Introduce

The EN 10028-6 steel standard is a European harmonised standard that provides requirements for hot-rolled flat steel products for pressure vessels. This standard sets chemical and mechanical property requirements, production control requirements, notch toughness, testing requirements and acceptance criteria. The purpose of the standard is to maintain a consistent product quality which makes it easier for organisations to buy, sell and manufacture steels.

Smelting temperature:1398°C - 1328°C

Application:Pressure flat steel products - Part 6: Weldable fine grain steel, quenched and tempered

EN 10028-6 P690QL1 Material Mechanical Properties

EN 10028-6 P690QL1 steel has excellent corrosion resistance, making it a popular choice for applications which require long-term protection from the elements. It is highly resistant to corrosion from acids and alkalis, as well as from chloride and sulfide environments. This property makes it particularly useful for outdoor applications, as it will not be damaged by the effects of moisture, salt, or dust. It is also resistant to stress corrosion cracking, making it an excellent choice for applications which must withstand high levels of stress.

The mechanical properties of the EN 10028-6 P690QL1 steel are as follows:

YieldRp0.2 ≤ 211 (MPa)
TeileRm≤ 114 (MPa)
ImpactKV/Ku22(J)
ElongationA43%
Reduction in cross section on fractureZ31%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)412

EN 10028-6 P690QL1 Material Thermal Properties

The thermal performance parameters of the EN 10028-6 P690QL1 steel are as follows:

Temperature (°C)43264252
Modulus of elasticity (GPa)-448-
Mean coefficient of thermal expaion ×10-6/(°C)--32
Thermal conductivity (W/m·°C)-11.311.2
Specific thermal capacity (J/kg·°C)-223-
Specific electrical resistivity (Ω mm²/m)0.24--
Deity (kg/dm³)--343
Poisson’s coefficient, ν--142

EN 10028-6 P690QL1 Material Machining Technology

When machining EN 10028-6 P690QL1 steel, there are several factors that need to be taken into consideration in order to achieve the desired results. First, the type and size of the cutting tools must be correctly selected for the job. The cutting speed and feed rate also need to be adjusted to suit the chosen material and machining process for the best results. Additionally, cooling should be applied periodically as excessive heat buildup can cause the tools to wear prematurely and cause tool breakage. Finally, periodic chip breaking is necessary in order to minimize chip build-up and clogging of the cutting tool.