Aluminum casting mold steel material certificates cover fixed detection items, verifying material compliance for LPDC, gravity and CPC mold production.
Qualified H13 hot-work steel certificates must include chemical composition detection, covering 8 core element content indexes within industrial standard ranges.
Hardness test report is mandatory, with qualified mold steel hardness controlled at 48–52 HRC for aluminum casting mold production.
Metallographic structure inspection is required to verify grain uniformity, ensuring no impurity inclusion exceeding 0.5% area ratio.
Tensile strength and impact toughness data must be attached, adapting to high-temperature alternating working conditions of LPDC casting mold.
Procast CAE simulation reference data includes steel thermal conductivity parameters, supporting mold temperature field optimization design.
Aluminum wheel mold steel materials need additional fatigue resistance test reports to verify long-cycle production stability.
EV structural part mold steel requires higher toughness indexes, with impact value not lower than 12J to resist structural alternating stress.
CPC counter-pressure casting mold steel needs pressure resistance verification data to adapt to 0.1–0.15MPa high-pressure working environment.
Gravity casting mold steel inspection focuses on overall structural stability, with allowable impurity content slightly higher than high-pressure molds.
Material certificate compliance inspection before casting mold trial-test eliminates 98% of material-induced casting mold porosity shrinkage defects.
Mold steel material certificate verification is a key pre-production quality control link for standardized aluminum casting mold manufacturing. All H13 hot-work steel used for LPDC casting mold, gravity casting mold and CPC counter-pressure casting mold must provide complete official factory inspection reports. Chemical composition detection ensures that the content of carbon, chromium, molybdenum and other core elements meets hot-work steel standards, avoiding performance degradation caused by element deviation. Hardness and metallographic inspection guarantee the uniformity and high-temperature stability of mold steel. For high-end aluminum wheel mold and high-strength EV structural part mold, targeted fatigue resistance and toughness testing are required to match long-term high-frequency production needs. Different process molds have differentiated inspection emphasis: high-pressure CPC and LPDC molds focus on pressure resistance and thermal fatigue performance, while gravity molds focus on basic structural stability. Complete material certificate data can provide accurate parameter support for Procast CAE simulation design. Strict material inspection before casting mold trial-test effectively avoids batch defects such as casting mold porosity shrinkage and mold deformation caused by unqualified steel materials, ensuring long-term stable operation of molds in industrial mass production.
FAQs
Q1: What core reports are required for H13 steel certificates? A1: Chemical composition, hardness and metallographic structure inspection reports.
Q2: What is the qualified hardness range of mold steel? A2: 48–52 HRC, suitable for all aluminum casting mold processes.
Q3: What impurity ratio is allowed for qualified mold steel? A3: Impurity inclusion area ratio strictly controlled below 0.5%.
Q4: Do EV molds need special steel inspection items? A4: Yes, impact toughness value shall not be lower than 12J.
Q5: What inspection do CPC high-pressure mold steels need? A5: Additional pressure resistance and high-temperature stability verification.
Q6: Can material inspection reduce casting defect rate? A6: Eliminate 98% of defects caused by unqualified steel materials.
Q7: Do wheel molds need fatigue resistance test reports? A7: Yes, mandatory for long-cycle mass production wheel molds.
