AISI 4140 PRE-HARDENED STEEL是预硬型高强度合金结构钢。AISI和ASTM是美国的两种行业标准，其推行机构不同，但是指向材料的含义是一样的。AISI——美国钢铁学会标准，ASTM ——美国材料与试验协会标准。4140标准: ASTM A29/A29M-04，合金结构钢材。4340对应中国牌号40CrNi2Mo高强度钢。STEEL的意思呢也就...
(priːˈhɑːdən) vb to harden beforehand Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 preharden Past participle:prehardened ...
Die Steels For Die Casting FDAC Prehardened Steel Plastic mold die steel flat bars JIMISTEEL in the business of Tool steel / Mold steel / Die steel / Alloy steel, etc. The main product has Plastic mold steel(P20 /1.2083 / NAK80...
It has good ductility in the annealed condition but can be hardened up to 500HB (highest of the chromium grades). Martensitic Grades are known for high hardness and allowances must be made for poor weldability and usually allowances for ...
Hardened 4140 Steel Properties: A Quick Guide Find out more → Mastering EN24 Steel Machining: From Theory to Practice Find out more → SKD11 Steel Supplier: Unveiling Precision in Cold Work Alloys Find out more → Unlocking the Weldability of 4140 Steel: A Comprehensive Guide Find out more →...
Cold drawn AISI 4140 beams were LASER surface hardened with a 2 kW CO2 LASER. Specimens were treated in the free state and while restrained in a bending fixture inducing surface tensile stresses of 94 and 230 MPa. Knoop hardness indentation was used to evaluate the through thickness hardness ...