Over 10000 tons 4140 / 42CrMo4 Plate
in Stock for fast delivery
Thickness 4~300mm plate available, Widest Size Range of 4140 Plate in China.
As Rolled, Annealed or Q+T/Pre-hardened condition available.
Cut to size & machined to tolerance service available.
ISO 9001
SGS
We deliver steel material with reliable and stable quality.
All quality control system according to ISO 9001 system.
All agreed quality assurance can be verified by SGS or other third party company.
Intimate & Long-term
Happy Customers
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NM500 wear-resistant steel is delivered at 450–530 HBW — already hard enough for PCB press plate and carrier plate applications, with no post-purchase heat treatment required. This guide explains when NM500 can replace heat-treated 4140, and which tolerance specs determine the right choice.
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Get high-strength ASTM A829 4140 steel plate at Otai. Durable, tough, and cost saving for industries like automotive, aerospace, and more!
HR 4140 Stainless Steel Plate, Otai is Right Supplier
#1 supplier of HR 4140 Stainless Steel Plate at Otai Special Steel. High-quality, customizable sizes, fast delivery, and unmatched reliability—perfect for your automotive, aerospace, or heavy machinery needs. Contact us today!