Place of Origin: Hebei, China

Warranty: 1 year

Customized Support: OEM, ODM, OBM

Brand Name: Storan

Model Number: 2013

Material: Cast iron

Accuracy: Customized

Operation Mode: Customized

Item Weight: Customized

Capacity: Customized

Material: HT200-300

Specification: See attached form or customize

Surface Treatment: Hand-scraped or finish-milling

Foundry Process: Foundry sand casting

Painting: Working surface covered with pickling oil

Surface Coating: Pickling oil

Working Temperature: (20±5)°C

Precision Grade: 1-2

Packaging: Plywood box

Custom Design: Available

Lead Time

Material: HT200-250
Specification: See attached form or customize
Surface Treatment: Hand-scraped or finish-milling
Foundry Process: Sand casting
Painting: Primer painting
Surface Coating: Working surface covered with pickling oil and non-working surface covered with antirust paint
Working Temperature: (20±5)°C
Precision Grade: 1-2
Packaging: Plywood box

Metal Right Angle Ruler Applications: Machining & Layout Inspection

In precision manufacturing, a metal right-angle ruler ensures accurate 90° relationships that are critical for machining setup and layout inspection. Storan’s 90-degree angle square solutions combine durability, precision, and versatility to support workshops in achieving geometric consistency.

1. Machining: Ensuring Perpendicular Precision

Storan’s metal right-angle ruler is essential for setting up milling, drilling, and grinding:

Machine Tool Alignment: A 300mm steel right-angle ruler (HT200 cast iron) verifies CNC mill spindle verticality within ±5", supporting more stable machining results.
Fixture Calibration: For aerospace fixtures, our right-angle square ruler with a hand-scraped finish supports clamping surfaces that are perfectly square. HT200’s vibration-dampening properties help stabilize measurements in noisy environments.

2. Layout Inspection: Geometric Integrity Assurance

In pre-machining setup and final checks, our metal right-angle square tools deliver reliable performance:

Sheet Metal Fabrication: A 500mm right-angle triangle ruler supports marking 90° bends on stainless steel sheets for consistent fabrication of enclosures and panels.
Large Structure Alignment: A 1000mm right triangle ruler (Class 2 precision) checks perpendicularity for structural support alignment. Stress-relieved cast iron helps resist dimensional drift under elevated temperatures.

3. Storan’s Design Advantages for Industrial Needs

Material & Size Options: Choose a steel right-angle ruler (stainless for marine environments) or an HT200 cast iron (for heavy machining). Available sizes from 100mm to 1000mm support bench tasks through oversized components.
Precision Grades: Grade 0 (±2") for aerospace labs, Grade 1 (±5") for machining, Grade 2 (±10") for layouts.
Ergonomic Durability: Rubberized handles help reduce operator fatigue; anti-corrosion oil supports extended tool life in demanding workshops.

4. Industry Impact: Efficiency & Operational Consistency

Automotive: A 400mm metal right-angle square supports ensuring 90° positioning for hinge bracket alignment.
Heavy Equipment: A reinforced right-angle triangle ruler supports aligning blade mounts for efficient operation and consistent measurement performance over time.

Storan’s metal right-angle square solutions deliver the precision and durability needed for machining and layout tasks. Engineered for repeatable accuracy and long service life, our tools help reduce setup time, enhance quality control, and support reliable inspection workflows—your trusted partner for squareness measurement needs.

Metal Right Angle Ruler Advantages: Stress-Relieved for Long-Term Use

In industrial metrology, the reliability of a metal right-angle ruler depends on its ability to maintain precision over years of heavy use. Storan engineers its metal right-angle square tools using a critical process—stress relief—to eliminate internal tensions and deliver improved dimensional stability for workshops where accuracy and durability are essential. Here’s how a stress-relieved design helps turn ordinary rulers into long-lasting precision instruments:

1. The Science of Stress Relief: Why It Matters

Casting or machining introduces residual stresses that can cause gradual warping—until properly relieved:

Two-Stage Annealing Process: Our right-angle triangle ruler undergoes a 550°C heat treatment for 4+ hours, softening the metal (HT200 cast iron at 180–240HB; stainless steel at 150–200HB) to release a major portion of machining-induced stress. This supports reduced long-term deformation compared with untreated alternatives, helping 90° squareness remain within tolerance over extended periods.
Microstructure Optimization: For cast iron models, stress relief supports a uniform pearlitic structure that helps resist vibration-induced micro-movements—important for maintaining accuracy during CNC calibration and aerospace inspections.

2. Sustained Precision in Demanding Environments

Storan’s stress-relieved metal right-angle ruler supports improved performance in three key areas:

Dimensional Stability: A 600mm steel right angle ruler (stainless steel 304) maintains Class 1 precision (≤0.01mm/m squareness) across temperature swings (10°C–40°C), while untreated rulers of the same size may deviate by ±0.05mm/m—an unacceptable error for critical automotive powertrain machining.
Impact Resistance: The stress-free matrix helps absorb minor drops or clamping forces without developing internal cracks. A case study in heavy equipment manufacturing showed our right triangle ruler retained full functionality after a 1.5m fall onto concrete—unlike non-stress-relieved rulers that required immediate replacement.
Surface Finish Preservation: Stress relief helps prevent micro-burrs and edge deformations that can degrade measurement surfaces. Our hand-scraped metal right-angle square (Ra ≤1.6μm) helps stay free of wear-induced scratches through 50,000+ alignment checks, supporting precision tasks such as CMM probe calibration.

3. Material-Specific Advantages

We tailor stress relief to the requirements of each material:

HT200 Cast Iron Models: The process enhances vibration damping, making them suitable for noisy workshops where unrelieved cast iron rulers may transmit machine vibrations into false readings.
Stainless Steel Models: Stress relief helps address brittleness associated with cold-formed stainless steel, supporting corrosion resistance (via 20μm nickel-chrome plating) and maintaining edge sharpness for marking high-tensile alloys such as titanium.

4. Applications Where Longevity Counts

Aerospace Metrology: A stress-relieved right-angle square ruler (Grade 0, ±2" tolerance) can serve as a reference standard in aircraft engine testing, where dimensional drift may invalidate certification data.
Mass Production Fixturing: In automotive plants, our metal right-angle ruler with reinforced ribs supports daily clamping of 200kg engine blocks for 5+ years without losing alignment, helping reduce downtime for tool recalibration.

5. Storan’s Commitment to Enduring Performance

Quality Assurance: Every stress-relieved metal right-angle ruler is verified via 3D laser scanning to meet GB/T 6092 and ISO 1101 standards, with a 1-year warranty against dimensional drift, twice the industry average.
Custom Solutions: Need a 1000mm right triangle ruler with anti-magnetic properties for MRI equipment alignment? Our engineers apply specialized stress relief to deliver customized tools within 4–6 weeks.
Total Cost Savings: With 3x the service life of generic rulers, our stress-relieved solutions help reduce annual replacement and recalibration costs.

Don’t compromise on precision that fades over time. Storan’s stress-relieved metal right-angle ruler tools are built for long-term use—combining stress relief, premium materials, and rigorous testing to help ensure your measurements stay accurate over time. Upgrade your workshop’s reliability with tools designed to perform in even the toughest industrial environments.