Threaded Application
JOTAIN supplies alloy steel round bars and processed bars for threaded tension bars, tie rods, and other load-bearing threaded parts used in structural, marine, and industrial applications.
Part Function
Tension bars, tie rods, and load-bearing threaded components should be reviewed around tensile load, thread route, heat-treatment support, surface protection, dimensional control, and inspection requirement.
Material Choice
42CrMo4 / 4140, 35CrMo, 40Cr, and project-specific steel grades can be reviewed according to strength level, heat treatment, thread processing, service environment, and document requirement.
Processing Route
Buyers should clarify whether the bar is supplied for thread machining, thread rolling, semi-finished preparation, or protected finishing. Coating, zinc protection, packing, and destination-market requirements should be stated when relevant.
Inspection RFQ
A focused RFQ should include part type, grade, diameter, length, thread size, thread length, delivery condition, heat-treatment requirement, certificate requirement, dimensional inspection, surface protection, packing requirement, and destination.
Production route
Use this page as a starting point. Load the route, then adjust each selection to match your order.
Starting point only. The exact route depends on grade, dimensions, application, specification, and order requirements.
Buyer Questions
Buyers often review 42CrMo4 / 4140, 35CrMo, 40Cr, and project-specific steel grades according to load level, thread route, heat-treatment requirement, surface protection, and inspection scope.
Tension bar RFQs should include thread size, thread length, end connection detail, strength expectation, and finishing route because downstream processing and inspection requirements affect material review.
Send part type, grade, diameter, length, thread size, thread length, quantity, delivery condition, heat-treatment need, surface protection, certificate requirement, drawing if available, and destination.
FAQ
Yes. Thread machining and thread rolling have different preparation, allowance, and inspection implications. If the route is not decided, buyers should state the final part requirement so the route can be reviewed.
Surface protection should be discussed when the part is exposed to outdoor, marine, storage, or project-specific conditions. The RFQ should state coating, packing, destination, and document requirements if they apply.
Useful documents may include MTC, heat number traceability, dimensional inspection, mechanical or hardness verification if specified, coating or surface-protection records when applicable, and packing documents.
Threaded Component Buyer Details
Review typical threaded parts, recommended grades, heat-treatment options, thread rolling or machining routes, and documentation needs.
Tension Bar RFQ
Include part type, grade, diameter, thread route, strength level, finishing needs, quantity, and destination.
