Cold Drawn Steel Profile Raw Material for Linear Module and Slider Manufacturing

Short Answer for Linear-Motion Raw-Material Buyers

Junxiong Metal supplies drawing-based cold drawn steel profile raw material and blanks for downstream manufacturers of selected linear-module rails/bases, slider or carriage components and ball-screw nut bodies. Buyers should identify the intended downstream component, grade and standard, raw-section drawing, carburizing or hardening route, case/core targets, machining and grinding allowance, distortion limit, inspection scope, annual volume and destination.

Controlled buyer-search routes below cover Germany/DIN, wider Europe/EN-ISO, Japan/JIS, Korea/KS, China/GB or customer drawings and USA/SAE terminology. A regional keyword is only an enquiry route; the ordered standard and component drawing control supply.

For an approved raw-profile drawing and feasible grade, the quoted scope can optionally include drilling and high-frequency induction hardening before shipment. A target surface hardness of HRC 58 or higher must be tied to specified surfaces, case depth, post-treatment geometry and inspection records; the supplied item remains semi-finished cold-drawn steel raw material.

This page does not offer a complete slider block, ball screw, linear actuator or assembled single-axis module. It covers upstream cold-drawn steel raw material and semi-finished profile blanks only.

Send the component drawing and material specification or send the RFQ by WhatsApp.

Cold-Drawn Raw Profiles for Downstream Module and Slider Manufacturing

Owner-confirmed cold-drawn raw profiles intended for downstream single-axis module manufacturing. They are not completed modules.

Cross-section detail of an owner-confirmed cold-drawn raw-profile blank for downstream module manufacturing.

Stacked upstream cold-drawn raw profiles intended for downstream module manufacturing; final machining and assembly are not shown.

Factory handling of owner-confirmed cold-drawn raw profiles for downstream module manufacturing.

Owner-confirmed cold-drawn raw profiles intended for downstream slider manufacturing. They are not finished machined slider blocks.

Image boundary: these owner-supplied photographs show cold-drawn steel raw-profile blanks and production handling. They do not show complete slider blocks or assembled modules, and they do not prove any grade, standard, hardness or batch identity by appearance.

Optional Processing on Cold-Drawn Module Raw Profiles

Junxiong can review supply of a semi-finished raw profile for module-rail or base manufacturing with drawing-defined holes and high-frequency induction hardening completed before shipment. Even after these optional operations, the supply remains upstream steel raw material and is not an assembled or installation-ready single-axis module.

Purchase field	Required acceptance definition
Surface hardness	Target HRC 58 or higher only on drawing-defined surfaces; state test positions, method, minimum readings and permitted variation.
Hardened zone	Define the hardened surfaces, effective layer depth, transition-zone limits and core-property requirement.
Hole pattern	Define mounting-hole and threaded-hole geometry, pitch, datum, positional tolerance, countersink/counterbore and burr limits.
Process sequence	Specify whether drilling, hardening, re-straightening and grinding occur in that order or under another validated route.
Post-treatment geometry	State straightness, twist, camber, rail/base alignment, grinding stock and final inspection stage after heat treatment.
Verification	Define hardness records, case-depth check, crack inspection, profile and hole reports, and heat/lot traceability.

Delivery boundary: HRC 58+ describes an available order-specific processing target. It does not prove finished-module accuracy, bearing life or suitability without the customer’s complete drawing and validation plan.

Separate the Component Before Selecting the Grade

Component	Material task	Do not assume
Carriage or slider-block blank	Machinable blank with datums, raceway/return-path allowance and drawing-specific heat-treatment route.	A rail profile photograph is not a finished slider block.
Ball-screw nut blank	Case-hardening steel route controlled by case depth, surface hardness, core properties and post-treatment grinding.	The nut and screw shaft necessarily use the same grade.
Single-axis module U-rail/base raw profile	Long custom raw profile controlled by straightness, twist, downstream drive alignment, machining stock and stiffness.	Demand for a complete module does not equal demand for an upstream steel profile.
Rolling-contact component	Bearing-steel route only when the component drawing specifies it.	GCr15/100Cr6/52100/SUJ2 is not the universal material for every rail, block or module part.

Germany, Europe, Japan and Korea Slider and Linear Module Steel Routes

The correct material depends on the exact part: module U-rail/base raw profile, slider or carriage blank, ball-screw nut blank, or rolling-contact component. The same regional grade term must not be applied to every part of an assembled linear module.

Market or search route	Buyer designation	Relevant component context	Purchase boundary
China / GB or customer drawing	20CrMo	Owner-confirmed slider, carriage or nut-blank application route.	Quote against the exact GB/customer specification, condition, section, carburizing requirements and MTC scope.
China / GB or customer drawing	GCr15	Drawing-specified rolling-contact or selected module component.	Bearing-steel route only. Do not apply it automatically to the module base, rail, slider body and screw nut.
Germany / DIN EN ISO 683-3	16MnCr5 / 1.7131; 20MnCr5 / 1.7147	Selected case-hardened slider, carriage or ball-screw nut blank.	Germany uses DIN adoption wording for the European/ISO standard family. Exact grade, edition, product form, condition, case/core criteria and drawing control.
Europe / EN-ISO case-hardening route	20MnCr5 or 20MnCrS5	Selected slider, carriage, nut or other drawing-defined case-hardened blank.	Separate European procurement route. Sulfur-controlled and non-sulfur-controlled variants are not interchangeable without buyer approval.
Germany / Europe bearing route	100Cr6 / 1.3505 under DIN EN ISO 683-17	Rolling-contact component or another part explicitly specified by the drawing.	Not a universal module material. State cleanliness, carbide/microstructure, decarburization, heat treatment, hardness and MTC criteria.
Japan / JIS G 4053	SCM415 or SCM420	Selected case-hardened slider, carriage, nut or guide component blank.	Documented Japanese application routes; they are not automatic substitutes for 20CrMo, 16MnCr5, 20MnCr5 or SAE 8620.
Japan / JIS G 4805	SUJ2	Drawing-specified rolling-contact component.	Bearing-steel route only. The exact component, supplied condition, downstream treatment and batch evidence must be named.
Korea / KS D 3867	SCM415 or SCM420	Buyer-specified case-hardened slider, carriage or nut blank.	The KS scope identifies later cold drawing and heat-treatment routes for machine-structural alloy steel; the exact drawing and order still control feasibility.
Korean producer application terms	S58C, SCM420H, 60Cr3 or CF53	Linear-motion guide bearing material search terms disclosed by SeAH Besteel.	Manufacturer application context only. These terms are not one KS equivalence set and do not prove Junxiong inventory or suitability for every slider/module profile.
Korea / KS D 3525	STB2	Drawing-specified rolling-bearing component.	High-carbon chromium bearing-steel route only; do not silently rename it SUJ2, 100Cr6, 52100 or GCr15.
USA / SAE buyer route	SAE 8620	Selected case-hardened slider, carriage or ball-screw nut blank.	Separate SAE route; chemistry, hardenability, cold-finished product requirements and heat-treatment plan require review.
USA / bearing route	SAE 52100	Drawing-specified rolling-contact component.	Not a universal module grade and not automatic evidence of equivalence to 100Cr6, SUJ2, STB2 or GCr15.

Regional-name boundary: German and European searches can refer to the same DIN EN ISO standard family. JIS, KS, GB and SAE names remain separate purchase routes. A keyword match never replaces exact-standard review, drawing approval, trial validation and a heat-specific MTC.

Technical Facts Needed for a Quotation

Decision	Buyer information required
Component identity	Carriage, slider block, screw nut, U-rail/base, rolling-contact insert or another named component.
Drawing	Full section, datums, critical surfaces, internal features, machining stock and finished component drawing.
Material	Exact grade, standard and edition, delivery condition, chemistry, hardenability and matching MTC scope.
Dimensions	Profile tolerances, straightness, twist, camber, length, cut-end, burr and surface limits.
Heat treatment	Carburizing or hardening process, target case depth, surface hardness, core hardness/properties and distortion allowance.
Post-treatment work	Machining and grinding allowance, datum retention and final accuracy requirements.
Validation	First-article report, profile scan, hardness traverse, metallography, NDT, traceability and PPAP where required.
Commercial	Trial quantity, annual volume per section, packing, destination and schedule.

Why We Do Not Bid on the KK Module Term

KK is a HIWIN series name for a finished single-axis robot/module architecture. Buyers searching that phrase usually want a branded or replacement assembly, not steel profile stock. Junxiong therefore uses the generic description single-axis linear module rail or profile blank and excludes the competitor-series term from paid search.

Buyer Checklist

Name the exact component and its downstream function.
Send the dimensioned blank and finished-component drawings.
State the exact grade, standard, edition and delivery condition.
Define carburizing/hardening, case depth, surface hardness and core targets.
Define straightness, twist, machining stock, distortion and grinding allowance.
State first-article, MTC, traceability, PPAP and inspection requirements.
State trial quantity, annual volume, destination and schedule.

FAQ

Is 20CrMo the universal steel for linear slider blocks?

No. It is a confirmed customer/order route, not a universal global specification. The exact component design, standard and heat-treatment plan control material selection.

Are 20CrMo, SCM420, 20MnCr5 and SAE 8620 equivalent?

No. They are separate regional and chemistry routes. A buyer-approved comparison of standards, hardenability, condition, section and heat-treatment response is required.

Are German, European, Japanese and Korean slider or module grades interchangeable?

No. DIN/EN/ISO, JIS and KS designations are separate purchase routes. A valid substitution requires the exact standard and edition, component drawing, chemistry and hardenability review, supplied condition, heat-treatment response, buyer approval and matching batch MTC.

Can Junxiong supply a complete single-axis module?

This page covers cold-drawn steel raw material and selected upstream profile blanks only. The drawing review defines any optional value-added operation; it does not imply supply of a finished assembled module.

Can the supplied photographs be called slider blocks?

No. They show custom profile blanks and section forms. A finished slider/carriage requires machining, raceways or return paths, heat treatment, grinding and assembly features not established by those images.

Can Junxiong deliver a module rail drilled and induction hardened?

Yes, as optional value-added processing on the cold-drawn raw profile when the drawing, material route and section are feasible. The order must define every hole and datum, hardened location, target surface hardness of HRC 58 or higher, effective hardened depth, post-treatment geometry and inspection documents. The delivered item remains a semi-finished profile blank, not a complete module.

When can a bearing-steel route be quoted?

When the buyer identifies the exact component and drawing requirement for GCr15, 100Cr6, 52100, SUJ2, STB2 or another specified grade, together with the governing standard and batch evidence scope.

Primary Technical References

Reference boundary: producer pages and patents support terminology and possible component routes. They do not prove universal grades, Junxiong inventory or conformity of a future batch.

Send the complete linear-motion component blank RFQ for factory review.