Standard map
Common cross-references
- GB
- 35CrMo
- ISO / EN route
- 34CrMo4; compare the ordered chemistry, condition, and properties
- SAE route
- SAE 4135; compare the ordered chemistry, condition, and properties
CHROMIUM · MOLYBDENUM
35CrMo
Round bar for fasteners & shafts
Quenched and tempered 35CrMo round bar, with cut and machined blanks available for fasteners, studs and shafts.
- DIAMETER
- 20–350 mm
- LENGTH
- 3–12 m
- CONDITION
- Quenched & tempered
Published QT round-bar sizes.
Supply formsQT round bars · Cut blanks · Machined blanks
Technical specifications & documents
Grade specifications
Cross-references help compare grades; they do not establish interchangeability. The drawing standard, delivery condition, dimensions and inspection scope define the order.
Supply window
Published specification
- Diameter
- 20 - 350 mm
- Length
- 3 - 12 m
- Condition
- QT
Property reference
Mechanical property requirements
- Property route
- State the product standard, QT target, diameter, and required results
- Test basis
- State the test position, sampling plan, and required result document
Chemistry reference
- 35CrMo
- Use the chemistry table in the governing GB standard
- Substitution check
- Compare the full tables before approving SAE 4135 or 34CrMo4
Application & inspection scope
- High pressure equipment
- Bolts and fasteners
- Mechanical shafts
- Petroleum equipment
- Chemical analysis
- Mechanical testing
- UT inspection available
- Dimensional inspection
Buyer questions
Is 35CrMo related to 4135 or 34CrMo4?
35CrMo, 4135, and 34CrMo4 are commonly reviewed as related Cr-Mo alloy steel routes, but buyers should specify the required project standard first and confirm chemistry, condition, mechanical targets, and inspection wording.
Is 35CrMo suitable for high-strength fastener bars?
Review 35CrMo against the finished fastener drawing. State the part type, required strength or hardness, heat treatment, thread-making process, inspection and destination. The project standard determines final suitability.
What inspection documents matter for 35CrMo round bar?
Common document requests include MTC, chemical composition, mechanical testing, hardness if required, heat number traceability, dimensional inspection, UT if specified, third-party inspection if specified, packing list, and shipping documents.
Documents, tools & technical reading
Fastener material selectionProcessing capabilitiesFastener inspection guideHeavy-duty componentsOpen matched process route35CrMo vs 42CrMo fastener barsCompare fastener grade routes when 35CrMo and 42CrMo are under review.Quality scope & MTC examplesFactory evidence registerExamples show a format; order documents must match your supply.
Source · 35CrMo · Q&T
35CrMo research micrograph after oil quenching and tempering at 610°C. The original 2 μm scale is retained.
Ren et al. (2023), Figure 3(b), upper-right panel. The specimen was oil quenched and then tempered at 610°C. Panels from other treatment conditions are excluded.
Rectangular crop from the 2010 × 2048 source image: (1003, 105)–(1995, 698), right and bottom edges exclusive. The top panel-letter strip and neighbouring panels are excluded; the original microstructure, complete 2 μm scale and lower white margin are retained. No retouching, sharpening, resizing or generated detail.
Ren et al. (2023), Metals 13(4), 771 · Figure 3(b) · CC BY 4.0.
Independent research material, not a JOTAIN batch image or a product acceptance result. The research treatment at 610°C is not a universal JOTAIN delivery specification; the ordered standard, condition and inspection records define supply.
View the complete source figure
Send your specification
35CrMo · include the supplied form, standard, size, condition, quantity and destination.
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