Steel Leg B: length_range 300-2000mm, angular_tolerance ±0.5°

Component Specifications

Definition

Steel Leg B is a precision-engineered structural component fabricated from hot-rolled or cold-formed steel angle bar, typically with equal or unequal legs. It serves as a vertical or inclined support element in machinery frames, providing stability, load distribution, and resistance to bending moments. The component features standardized mounting holes, chamfered edges for safety, and surface treatments for corrosion protection. Its geometry is optimized for maximum strength-to-weight ratio while maintaining dimensional accuracy for assembly compatibility.

Working Principle

Steel Leg B functions as a compression/tension member that transfers loads from upper machine structures to foundations or base frames. It resists buckling through its L-shaped cross-section, which provides high moment of inertia in both principal axes. The component distributes stress evenly along its length through proper material selection and geometric design, preventing localized failure points. Mounting holes allow secure fastening while maintaining structural integrity through calculated hole placement and reinforcement.

Materials

ASTM A36/A572 Grade 50 carbon steel or equivalent; Hot-rolled steel angle bar with yield strength ≥ 250 MPa; Surface treatment: Hot-dip galvanized (minimum 85μm coating) or powder-coated per ASTM A123/A153; Optional stainless steel (304/316) for corrosive environments.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hole Pattern	Standardized grid per ISO 2768-m
Length Range	300-2000mm
Hole Diameter	10.5mm, 13.5mm, 17mm
Leg Dimensions	50x50x5mm to 100x100x10mm
Weight Per Meter	3.77-15.1kg/m depending on dimensions
Angular Tolerance	±0.5°
Surface Roughness	Ra ≤ 12.5μm
Flatness Tolerance	≤1.5mm/m

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, ISO 2768, DIN 1028, ASTM A36, EN 10056

Parent Products

This component is used in the following industrial products

Structural Steel Angle Bar

Structural steel angle bars are L-shaped hot-rolled steel sections with equal or unequal legs, forming 90-degree angles.

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Engineering Analysis

Risks & Mitigation

Improper installation causing misalignment
Corrosion in humid environments
Fatigue failure under cyclic loading
Overloading beyond design capacity
Galvanic corrosion when paired with dissimilar metals

FMEA Triads

Trigger: Inadequate corrosion protection
Failure: Reduced cross-sectional area leading to structural failure
Mitigation: Implement proper surface coating, regular inspection, and environmental controls

Trigger: Improper hole alignment during assembly
Failure: Stress concentration and premature fatigue cracking
Mitigation: Use precision drilling jigs, implement quality checks, and follow assembly torque specifications

Trigger: Material defects in steel angle bar
Failure: Sudden brittle fracture under load
Mitigation: Source materials from certified suppliers, conduct material testing, and implement incoming inspection protocols

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerances per ISO 2768-m: ±0.5mm on hole positions, ±1.0mm on length, ±0.3mm on leg thickness

Test Method

Load testing per ISO 7500-1, surface coating thickness per ASTM B499, dimensional verification with CMM per ISO 10360, material certification per EN 10204 3.1

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Steel Leg B

Manufacturer profiles associated with Steel Leg B.

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Frequently Asked Questions

What are the main applications of Steel Leg B?

Steel Leg B is primarily used in machinery frames, equipment stands, conveyor supports, packaging machines, industrial workstations, and automated system structures where vertical support with lateral stability is required.

How do I select the right Steel Leg B dimensions?

Selection depends on load requirements (static/dynamic), safety factor (typically 3-5), leg length, and connection method. Consult engineering calculations for bending moments and use dimension tables correlating leg size to load capacity.

Can Steel Leg B be customized for specific applications?

Yes, manufacturers offer customization including special hole patterns, non-standard lengths, additional reinforcement plates, special coatings, and material grades to meet specific environmental or load requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Steel Leg B