In the field of high-end martensitic stainless steel precision manufacturing, stringent dimensional tolerances and precise mechanical properties are the keys to ensuring the quality of end components. We recently successfully secured a high-standard inquiry for 1.4021 material (equivalent to domestic 20Cr13): 3 tons of plates with a thickness of 4.0mm × width of 130mm, where the client explicitly required strict compliance with the EN10088 standard and a delivery condition of +QT650.
I. Imported MINO Mill: Easily Overcoming the ±0.03mm Ultra-Narrow Thickness Tolerance
For the 4.0mm-thick cold-rolled strip in this inquiry, the client specified a demanding thickness tolerance of ±0.03mm.
●Process Advantage: This tolerance range is a mature domain of our daily large-scale production. Relying on advanced imported MINO cold rolling mills, we are capable of high-precision longitudinal and transverse thickness control over the steel strips.
●Product Value: This ensures high uniformity in thickness across the entire batch of 3 tons of plates, sparing the client from tedious secondary grinding and leveling processes in subsequent precision stamping and machining.
II. EN10088 Standard and 1.4021 (20Cr13) Material Analysis
●International Standard Benchmarking: This batch of materials strictly follows the European EN10088 stainless steel standard, with chemical composition and physical properties perfectly corresponding to the domestically common 20Cr13.
●Application Characteristics: As a classic martensitic stainless steel, 1.4021 features excellent corrosion resistance, wear resistance, and good machinability, making it widely applicable for manufacturing various corrosion-resistant pump shafts, valve components, high-strength fasteners, and industrial cutting tools.
III. Backed by Multiple Quenching Lines: Stably Achieving QT650 Q&T Performance
The client explicitly requested a +QT650 material condition, meaning the delivered tensile strength must reach or exceed 650 MPa.
●Mature Q&T Production Lines: Quenched and tempered strip steels with a tensile strength of 650 MPa or above are our long-standing advantageous products. Our facility is equipped with multiple professional quenching and tempering heat treatment lines.
●Flexible Customization Response: The coordinated operation of multiple lines enables us to flexibly adjust heat treatment process parameters according to the client's combined requirements for strength, hardness, and toughness, ensuring high stability in the internal microstructure and mechanical metrics of every coil and plate.
Whether you are facing stringent compliance requirements for European standards like EN10088 or customized challenges involving micron-level thickness tolerances and specific quenched & tempered states, we can provide you with a reliable, one-stop delivery solution backed by advanced rolling and heat treatment equipment.
Baoshan District,
Shanghai, China.
