Peeled bar
A bar option where surface removal matters
Peeled bar is produced by machining away the surface of rolled bar. We review grade, peeling condition and downstream requirements for components where surface soundness and machining allowance are important.
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Product & application
Peeling removes an outer surface layer. Straightening, grinding or inspection requirements may vary with the specified dimensions and finish. The proposed supply condition is checked against your final machining allowance, permissible surface defects and required inspections.
- Supply forms
- Round bar · stock length · cut blanks
- Application examples
- Cylinder rods, long shafts, ball-screw stock and forged or machined components
Define the supply conditions.
These are specification inputs for quotation review. Actual availability, minimum quantity and lead time are confirmed by grade and size.
- Condition & surface
- Peeled surface, defect/decarburization, straightness and roughness criteria
- Dimensions & order
- Finished diameter, machining allowance and cut length
- Inspection & documents
- Specify mill certificates, tests, traceability and customer approvals. Document availability, cost and timing are reviewed.
Representative grades & review scope
| Family | Representative grades / review basis |
|---|---|
| Carbon steel | S35C · S45C · S50C · S55C |
| Alloy steel | SCM415 · SCM420 · SCM435 · SCM440 |
| H steels (guaranteed hardenability) | SCr415H · SCr420H · SCM415H · SCM420H · SCM435H · SCM440H |
| Other grades | Sourcing reviewed through domestic and overseas makers, based on the required standard and chemistry |
Grades and forms are inquiry examples. Inventory, availability, dimensions, quantity, inspections and lead time are confirmed at quotation.
JIS names are used as a reference. They do not automatically establish equivalence to other standards or certification. Agree the applicable standard, edition and product requirements before ordering.
H steels are structural steels supplied with a guaranteed hardenability band (Jominy test) under JIS G 4052 (KS D 3754 equivalent), used for gears, shafts and other parts that need consistent heat-treatment response.
Information for quotation & technical review
- Finished diameter and machining allowance
- Surface-defect and decarburization requirements
- Straightness, roundness and finish
- ECT/UT requests and agreed acceptance scope
- Heat treatment, cutting and packing
If your drawing or specification is not complete, tell us the intended process and function. We can start by clarifying the information needed for review.