Description

Technical Parameters

One Process, Many Components

Rather than being tied to a single part type, water glass casting scales across:

Gear blanks and transmission components
Structural brackets, arms, and levers
Housings and enclosures
General mechanical and machinery parts

The same shell-casting process and the same three core grades cover all of it, which keeps quoting and tooling straightforward whether you're ordering a single part or sourcing Alloy Steel Water Glass Casting Components across an entire product line.

Grade Guide

Grade	Strength Profile	Typical Component
42CrMo	Highest strength and hardenability	High-load gears, shafts, drivetrain parts
40Cr	Solid strength at a lower cost than 42CrMo	Medium-load structural components
35CrMo	Prioritizes toughness and fatigue resistance	Parts under cyclic or impact loading

From Drawing to Finished Part

Wax pattern built to the component geometry
Ceramic shell built in sodium silicate (water glass) slurry
Dewax and casting in the specified alloy steel grade
Heat treatment, normalizing, quenching, and tempering, to target hardness
CNC machining of critical bores, mounting faces, and threads
Final inspection, cleaning, and export packaging

Production Process Introduce

3233

Specifications

Item	Detail
Casting tolerance	±0.2–0.5mm as-cast
Machined tolerance	±0.02–0.05mm on critical features
Surface finish	Ra 6.3–12.5μm as-cast; Ra 1.6μm or better on machined surfaces
Heat treatment	To your specified hardness range
Supply format	Customer drawing, physical sample, or reverse-engineered CAD model

Where a Finer Process Makes More Sense

Water glass casting isn't the right call for every part. If your component is small, thin-walled, or needs a fine as-cast surface, decorative hardware, for instance, silica sol casting usually delivers a better result for a similar cost. We'll say so plainly if your drawing fits that category rather than defaulting you into the wrong process.

Where It's Used

Agricultural and construction machinery
Transmission and drivetrain systems
General industrial equipment
OEM replacement part programs

Customization

Shape, grade, hardness, and finish are matched to your component. Send a drawing if you're specifying a new part, or a physical sample if you're sourcing a replacement, we'll confirm fit and flag anything better suited to a different process or alloy.

Built-In Quality Checks

Stage	Check
Incoming material	Spectrometer verification of alloy composition
After casting	Visual and dimensional inspection before machining
After heat treatment	Hardness testing against target range
Before shipping	CMM measurement against the drawing

Material certificates, hardness test reports, and dimensional reports are available with every order on request.

FAQ

Q1:	Is water glass casting accurate enough for load-bearing parts?
A1:	Yes. As-cast tolerance runs ±0.2–0.5mm, and critical bores, faces, and threads are CNC machined afterward to ±0.02–0.05mm, so the structural fit comes from machining rather than the casting surface.
Q2:	When should I choose silica sol instead of water glass?
A2:	Small, thin-walled parts, or anything needing a fine as-cast surface such as decorative hardware, usually suit silica sol better. Send the drawing and we will tell you which process fits.
Q3:	Which alloy steel grade should I specify?
A3:	42CrMo for the highest-load gears and shafts, 40Cr for medium-load structural parts at lower cost, and 35CrMo where toughness under cyclic or impact loading matters most.
Q4:	What hardness can you achieve?
A4:	It depends on the grade, section thickness, and heat treatment. Tell us your target range and we will confirm feasibility during engineering review.

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