8620 and 20NiCrMo2-2 Case-Hardening Steel Bars

Short Answer for 8620 and 20NiCrMo2-2 Bar Buyers

Junxiong Metal can review 8620 and 20NiCrMo2-2 case-hardening steel bar enquiries in round, square, flat, hexagonal and drawing-based sections. Buyers should state the governing standard, finished dimensions, tolerances, incoming condition, machining allowance, carburizing and final-property requirements, quantity, destination and MTC scope.

SAE 8620, 20NiCrMo2-2 and 1.6523 are useful cross-market comparison terms. They are not quoted as automatically identical: chemistry, hardenability, delivery condition, carburizing process and final case/core requirements must be approved for the order.

Send a complete 8620 or 20NiCrMo2-2 factory RFQ or send the grade, standard, shape, size, condition and quantity by WhatsApp.

Representative Cold Drawn Round Bar Images

Representative Junxiong bright cold drawn round steel bar ends
Representative Junxiong round-bar geometry. This image does not identify an SAE 8620 or 20NiCrMo2-2 heat.
Representative straight cold drawn round steel bars in long lengths
Representative length and handling form. Grade, condition, carburizing response and conformity require the approved order and batch documents.

Image boundary: steel grade cannot be verified from appearance. These Junxiong images show a relevant cold-drawn round-bar form only and are not presented as 8620 or 20NiCrMo2-2 batch evidence.

Supply Scope and Evidence Boundary

Junxiong has confirmed commercial supply capability for this grade family. This does not guarantee every section, condition or carburizing response. Grade-specific photos and order or batch evidence remain required before paid traffic is directed to the page.

Evidence boundary: a supply statement or quotation is not a shipment record, current-stock declaration, heat certificate or dimensional inspection report. Each order is confirmed against the approved specification, production route and order or batch documents.

Technical Facts Buyers Must Confirm

Decision Required RFQ information
Grade route SAE/AISI 8620, 20NiCrMo2-2, 1.6523 or another buyer-approved standard and edition.
Incoming condition State annealed, normalized, cold-finished or another approved condition, plus hardness where applicable.
Carburizing requirement State the buyer’s downstream process, required case-depth or hardness criteria and core-property requirements where applicable.
Machining allowance Give finished part size, bar size, surface route and machining allowance rather than only a nominal bar diameter.
Inspection Heat identity, MTC type, chemistry, hardenability, grain-size or supplementary inspection requirements.
Commercial data Quantity per size, repeat demand, packing, destination country, port and required delivery schedule.

Shape and RFQ Selection

Shape Buyer must state Factory review
Round bar Diameter, tolerance, straightness, surface, length and bar-feeder or machining requirements. Starting material, process route, tooling, inspection, MOQ and schedule are reviewed for the exact grade-size-condition combination.
Square bar Side size, tolerance, corner radius, twist, straightness and length. Starting material, process route, tooling, inspection, MOQ and schedule are reviewed for the exact grade-size-condition combination.
Flat bar Width, thickness, edge condition, flatness, straightness and length. Starting material, process route, tooling, inspection, MOQ and schedule are reviewed for the exact grade-size-condition combination.
Hexagonal bar Across-flats size, tolerance, twist, straightness and length. Starting material, process route, tooling, inspection, MOQ and schedule are reviewed for the exact grade-size-condition combination.
Custom profile Dimensioned drawing, critical tolerances, corner radii, datum scheme, annual demand and trial quantity. Starting material, process route, tooling, inspection, MOQ and schedule are reviewed for the exact grade-size-condition combination.

Standards and Primary Reference Sources

  • SAE J404: SAE publisher route for chemical compositions of SAE alloy steels; the contract must state the required edition.
  • ASTM A108-24: ASTM specification route for carbon and alloy cold-finished steel bars.
  • BS EN 10277:2018: Technical delivery conditions for bright steel products in drawn, peeled/turned or ground condition.
  • Saarstahl 20NiCrMo2-2 technical sheet: Mill reference that lists SAE 8620 for comparison; it is not a Junxiong order certificate.

Reference boundary: publisher, association and mill pages support terminology and buyer verification. They are not Junxiong heat certificates and do not prove that every designation, product form or delivery condition is interchangeable.

Buyer Checklist Before Quotation

  • Exact grade designation, governing standard and standard edition.
  • Shape, finished dimensions and machining allowance.
  • Dimensional tolerance, straightness, twist and corner-radius limits.
  • Delivery and heat-treatment condition.
  • Surface condition and defect limits.
  • Carburizing route, case-depth/hardness criteria, core-property target and machining allowance.
  • MTC, heat traceability and third-party inspection requirements.
  • Quantity per size, repeat demand, destination, schedule and packing.

FAQ for 8620 and 20NiCrMo2-2 Bar Buyers

Can Junxiong supply 8620 cold drawn round bar?

Junxiong can review the requirement after receiving the standard, diameter, tolerance, incoming condition, machining allowance, carburizing requirements, quantity and destination.

Is 20NiCrMo2-2 exactly the same as SAE 8620?

No automatic substitution is assumed. The comparison is useful, but the order must be checked for chemistry, hardenability, delivery condition and downstream carburizing requirements.

What carburizing information belongs in the RFQ?

State the downstream process and any case-depth, surface-hardness, core-hardness or core-property criteria that affect material selection and testing.

Can non-round sections be reviewed?

Yes, subject to size, reduction route, condition, tolerances, machining allowance and quantity. A dimensioned drawing is required for custom profiles.

Can hardenability or grain-size testing be included?

Yes, when the test method, acceptance criteria and certificate requirements are agreed before production.

Related Cold Drawn Steel Pages

Send the complete 8620 or 20NiCrMo2-2 specification for factory review.

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