{"id":666,"date":"2026-03-03T06:46:23","date_gmt":"2026-03-03T06:46:23","guid":{"rendered":"https:\/\/www.jccncmachining.com\/material\/\/"},"modified":"2026-03-03T06:46:23","modified_gmt":"2026-03-03T06:46:23","slug":"tool-steel-p20","status":"publish","type":"material_model","link":"https:\/\/www.jccncmachining.com\/es\/materials\/steel\/tool-steel-p20\/","title":{"rendered":"Tool Steel P20"},"content":{"rendered":"

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Tool Steel P20 Machining Capabilities<\/h3>\n\n\n\n\n\n\n\n\n
Capability<\/th>\nTechnical Description<\/th>\nJucheng Advantage<\/th>\n<\/tr>\n<\/thead>\n
Pre-Hardened Machining<\/strong><\/td>\nP20 is supplied pre-hardened (28-32 HRC). We utilize high-performance carbide tools to machine final shapes directly without further heat treatment.<\/td>\nEliminates the risk of heat-treat distortion or cracking, significantly reducing lead times for large mold projects.<\/td>\n<\/tr>\n
Large Mold Base Milling<\/strong><\/td>\nUsing heavy-duty CNC gantry mills to process large P20 blocks for automotive and appliance mold bases.<\/td>\nOur rigid setups ensure excellent flatness and parallelism (+\/- 0.05mm) across parts up to 2 meters in length.<\/td>\n<\/tr>\n
Precision Boring<\/strong><\/td>\nMachining deep, accurate guide pin and ejector pin holes with high positional accuracy.<\/td>\nEnsures perfect alignment of mold halves for millions of injection cycles without binding or wear.<\/td>\n<\/tr>\n
High-Quality Surface Prep<\/strong><\/td>\nP20 offers excellent polishability. We machine surfaces to Ra 0.8\u03bcm to reduce manual finishing labor.<\/td>\nConsistent material quality ensures that your mold surfaces are free of voids or hard spots, delivering superior plastic part aesthetics.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Fabrication Guidelines for Tool Steel P20<\/h3>\n

Ready to Use:<\/strong>
\nThe greatest advantage of P20 is that it is typically used in the condition it is received (Pre-hardened). Tip:<\/strong> This is the most cost-effective choice for medium-production plastic injection molds.<\/p>\n

Machinability:<\/strong>
\nDespite being pre-hardened, P20 machines very well (approx. 65% of 1212). Tip:<\/strong> We use rigid tool holders and constant chip loads to maximize tool life and prevent surface work-hardening.<\/p>\n

Welding & Repair:<\/strong>
\nP20 is weldable, which is critical for mold changes or repairs. Tip:<\/strong> Pre-heating to 300-400\u00b0C is required to prevent cracking in the heat-affected zone.<\/p>\n

Nitridability:<\/strong>
\nIf higher surface wear resistance is needed, P20 can be nitrided to achieve 50+ HRC surface hardness. This is excellent for abrasive glass-filled plastics.<\/p>\n<\/div>\n

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Primary Applications<\/h3>\n

Plastic Injection Molds<\/strong>
\nLarge mold cavities and cores for automotive dashboards, appliance housings, and consumer electronic cases.<\/p>\n

Mold Bases & Frames<\/strong>
\nStructural holders for high-precision mold inserts (like 420 or H13) where stability is required.<\/p>\n

Die Casting Die Holders<\/strong>
\nUsed as the backing or holder block for high-temperature die-casting inserts.<\/p>\n

Zinc Die Casting Dies<\/strong>
\nP20 is durable enough to act as the primary cavity material for low-melting-point zinc casting.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Tool Steel P20 Machining Capabilities Capability Technical Description Jucheng Advantage Pre-Hardened Machining P20 is supplied pre-hardened (28-32 HRC). We utilize high-performance carbide tools to machine final shapes directly without further heat treatment. Eliminates the risk of heat-treat distortion or cracking, significantly reducing lead times for large mold projects. Large Mold Base Milling Using heavy-duty CNC […]<\/p>\n","protected":false},"featured_media":667,"template":"","meta":[],"class_list":["post-666","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/material_model\/666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/media\/667"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/media?parent=666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}