Grinding rod trial ledger
Reconcile gross kg/t, keep recovered removals visible, compare baseline and trial blocks, and download the same calculation structure as an Excel workbook.
Open trial ledger →Steel tools and public data
Useful before the quotation starts.
Reconcile a grinding rod trial, calculate theoretical bar weight, download reusable data, or turn the result into a clearer RFQ. No account is required.
Available now
Four tools and datasets, with their assumptions explained.
Round bar weight calculator
Estimate kg/m, weight per bar, total kilograms, and metric tonnes from diameter, length, quantity, and an editable density.
Open calculator →Round bar theoretical weight table
Browse common diameters or download the full 1–400 mm table as CSV or JSON. Every row uses the published formula and density basis.
View weight data →Alloy steel RFQ route dataset
Compare six public JOTAIN grade routes without treating cross-standard designations as automatic substitutes.
View RFQ data →Documents for purchasing and technical review
Download the file you need.
Templates, calculation files, reference data and certificate originals are collected here. Check each file's stated scope and version before use. Blank worksheets are templates for your records.
Product enquiry forms
Fill in a QT round bar or grinding rod enquiry, or use the general steel bar template.
Purchase order and MTC review checklist
Compare the purchase requirements with the material certificate and record open points.
Grinding rod wear observation sheet
Record operating conditions, observations and sample identity before evaluating rod wear.
Shaft material selection worksheet
Collect service conditions and material requirements for a drawing and grade review.
Grinding rod trial ledger
Use the workbook alongside the online ledger to record and compare trial blocks.
Alloy steel RFQ route dataset
Compare six grade routes with their sources and specification checks; confirm any proposed substitution.
Round bar theoretical weight table
Reuse the published diameter, density and calculation basis when estimating theoretical mass.
Management-system certificates
Check the named holder, site, standards and scope against the original certificates and current records.
Supply-route evidence register
Review the evidence types, holders and public verification references for a proposed supply route.
When the estimate is ready
Add the details needed for a quotation.
Weight is only one line in a steel bar inquiry. A workable quotation still needs the grade and controlling standard, diameter and tolerance, length, quantity, condition, inspection documents, packing, and destination.
Use the estimate to compare order quantities and freight scenarios, but keep theoretical mass separate from actual shipment weight. Commercial settlement must follow the accepted dimensional tolerances, weighing basis, and order terms rather than an unlabelled calculator result.
Compiled by JOTAIN Materials. Use of these datasets follows theWebsite Terms, dated 18 July 2026. Referenced third-party materials retain their own terms and attribution.