Material insight · Annealing and strengthening By Harris, technical staff at FUSHUN METAL When a drawing calls for 201LN, that one label can arrive from three different standard systems. In the United States the grade is 201LN, carrying the UNS number S20153 and specified in ASTM A240/A240M
Read more →Fushun Metal · Technical Notes By Harris, technical staff at Fushun Metal Sulfide Morphology, Not Sulfide Content: How 42CrMo1 Bar Actually Earns Its Machinability The prevailing view is wrong for this grade. Almost every supplier page and textbook entry treats MnS as a defect to be driven
Read more →Fushun Metal · Technical Notes By Harris, technical staff at Fushun Metal Forget the Annealing Temperature: Why the Slow-Cool Stop Decides DP600 Most DP600 process debates are stuck on the wrong knob. Ask any mill engineer how to tune a DP steel and the first number out
Read more →17-4PH Stainless Steel: 7 Technical Pitfalls Every Buyer Must Avoid 17-4PH stainless steel (S17400 / AISI 630 / 1.4542 / 0Cr17Ni4Cu4Nb) is specified worldwide for pumps, valves, aerospace fasteners, turbine seals and plastic injection molds. Its combination of high strength, moderate corrosion resistance and single-step aging makes
Read more →Cold-Work Tool Steel · Field Note from FUSHUN METAL AISI D2 / 1.2379 / SKD11 Spheroidising: The 60 °C Austenitising Drop That Reshapes the Carbides In a recently published trial on Cr12Mo1V1 — the standard AISI D2 / DIN 1.2379 / JIS SKD11 cold-work die steel —
Read more →Discover how austenite content improves maraging steel fatigue performance. Learn about TRIP effects, crack propagation resistance, and microstructural stability for high-stress applications.
Read more →Explore how desulfurizer dosage impacts molten steel quality. Learn optimization techniques for Ca-Al alloys and lime to enhance purity and mechanical properties.
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Master defect control in UNS N07718 VIM ingots. We explore thermal modeling, riser height, and pouring speeds to eliminate centerline shrinkage.
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Prevent UNS R30188 cracking during vacuum induction melting. We explain how lanthanum segregation and SDAS expansion cause severe electrode failures.
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Master VIM inclusion control to reduce Al2O3 defects in UNS N07718. Learn how refining temperature impacts crucible erosion and melt purity.
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