A Batch of Cr12MoV Milled Plates Heads to Peru

Last week, we received an order for Cr12MoV milled plates from a customer in Peru. As it happened, we had the material in stock, and within less than a week the shipment was arranged and on its way.

South America has been a market we take seriously, and Peru in particular is one we’ve been actively working to grow. The conditions on the ground make it a natural fit. Import duties on tool steel under HS codes 72284000 and 72283000 currently sit at zero, and under the China-Peru Free Trade Agreement, we’re able to issue a Form R certificate of origin for shipments like this one, which helps our customers clear customs smoothly and keep landed costs down.

The video below captures that shipment being lifted and loaded, Cr12MoV milled plates heading out to Peru. It’s a quick turnaround story, but it also says something about why Cr12MoV continues to be a steady seller in this market, and what buyers should know about the grade itself.

What Cr12MoV Is

Cr12MoV is a high-chromium cold work tool steel defined under the Chinese GB/T 1299 national standard. It belongs to the same broad family as AISI D2, JIS SKD11, and DIN 1.2379, and in practice it’s the grade we position as a cost-effective substitute for D2. The chemistries aren’t identical, D2 typically runs a bit higher in molybdenum and vanadium, but the overall performance profile is close enough that Cr12MoV covers the large majority of applications where D2 would traditionally be specified, at a meaningfully lower cost.

The standard reference chemistry is shown below.

These figures represent standard reference ranges. The actual batch chemistry verified on the Mill Test Certificate, or confirmed directly by Aobo Steel, is the authoritative source for quality assurance.

Core Performance Strengths

Cr12MoV owes its wear resistance to a dense chromium carbide network running through its microstructure, which holds up well under severe abrasive loading. The molybdenum and vanadium additions give the steel good hardenability for its alloy class, capable of developing a solid hardness profile in medium to large cross-section dies, though buyers working with very heavy sections should still confirm hardenability against their specific geometry, since Cr12MoV’s Mo and V content runs lower than D2. It also holds its shape well after heat treatment, with minimal volume change during quenching and tempering, which matters for complex tool geometries that need to stay dimensionally accurate.

Cr12MoV sits in the middle of a well-defined performance gradient within the Cr12 family. Cr12 itself carries the highest carbon content, between 2.00 and 2.30 percent, but without molybdenum or vanadium it suffers from carbide segregation and comes out brittle with limited toughness. Cr12MoV brings carbon down to 1.45 to 1.70 percent and adds Mo and V, which refines the carbide structure and significantly improves toughness and hardenability while keeping wear resistance intact. For readers doing deeper grade comparisons, Cr12Mo1V1 sits a step above Cr12MoV in this same family, with higher Mo and V content and a chemistry that tracks even closer to D2, though it’s a less commonly stocked grade for standard tooling work.

Typical Applications

Cr12MoV is widely used for cold stamping dies, cold heading dies, drawing dies, blanking dies, and shearing blades. For shipments like the recent Peru order, this makes it a strong fit for the region’s metalworking sector. Stamping plants across Latin America often run high-cycle operations on heavy-duty sheet metals, sometimes with heat-treating infrastructure that varies from shop to shop. Cr12MoV’s toughness and quench stability help these tools resist premature cracking and edge chipping, which translates into a more reliable production run for the buyer.

The Value of Milled Plate

Black surface, or hot-rolled raw plate, keeps the rough, oxidized, and decarburized scale left over from the mill. A milled plate has been through precision face milling to strip that layer away entirely, exposing clean, sound tool steel underneath.

Buyers who choose milled plate get material that is flat, planar, and parallel from the start. That cuts down raw material waste, shortens setup time on magnetic chucks, and lets the machinist skip roughing and move straight to finish machining. Aobo Steel supplies milled plate to a thickness tolerance of 0/+1mm, tight enough to leave just enough stock for a final grind to precision size without paying for excess weight that never gets used.

Heat Treatment Guidance

Standard quenching for Cr12MoV is carried out at 950°C to 1000°C in oil, followed by tempering. GB/T 1299 sets a minimum post-treatment hardness of 58 HRC, and in practice hardness in the 58 to 61 HRC range is commonly achieved through this route, which covers most stamping, blanking, and shearing die applications.

A high-temperature quench followed by multiple tempering cycles in the 510°C to 520°C range, the kind of secondary hardening route typically associated with higher-alloy grades like D2, can be applied to Cr12MoV as well, but the hardness gain from secondary carbide precipitation will be less pronounced given its lower Mo and V content. Buyers targeting hardness above 61 HRC or planning to use this route should confirm feasibility with their heat treater or with Aobo Steel before committing to a die design around it.

As always, actual parameters should be adjusted for the specific die geometry, section thickness, design complexity, and the mechanical stresses the tool will face in service.

Why Aobo Steel

Cr12 and Cr12MoV are among our most established products, backed by more than 20 years in the domestic Chinese market alongside our growing export business. Every batch ships with a Mill Test Certificate covering chemical composition, hardness, and UT test results, and for markets like Peru, we’re able to provide FTA certificates of origin that support duty-free import under current trade terms.