At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to EN 10083-1. EN 10083-1 ‘Steels for quenching and tempering – Part 1: General technical delivery conditions’. Sets the common requirements (steelmaking, heat treatment, testing, tolerances) for heat-treatable steels; specific grades and property tables are in Part 2 (non-alloy) and Part 3 (alloy). Basis for high-strength Q&T bolt/stud bar (property classes 8.8-12.9).
EN 10083-1 ‘Steels for quenching and tempering – Part 1: General technical delivery conditions’. Sets the common requirements (steelmaking, heat treatment, testing, tolerances) for heat-treatable steels; specific grades and property tables are in Part 2 (non-alloy) and Part 3 (alloy). Basis for high-strength Q&T bolt/stud bar (property classes 8.8-12.9).
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| C35 / C35E | 1.0501 / 1.1181 | Non-alloy Q&T (Part 2) |
| C45 / C45E | 1.0503 / 1.1191 | Non-alloy Q&T (Part 2) |
| 25CrMo4 | 1.7218 | Cr-Mo alloy Q&T (Part 3) |
| 42CrMo4 | 1.7225 | Cr-Mo alloy Q&T (Part 3) |
| 34CrNiMo6 | 1.6582 | Ni-Cr-Mo alloy Q&T (Part 3) |
| 51CrV4 | 1.8159 | Cr-V spring/bolting steel (Part 3) |
Minimum mechanical requirements per EN 10083-1.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| C35 +QT (16-40 mm) | 80-94 (550-700) | 40 (280) | 19 | – |
| C45 +QT (16-40 mm) | 94-116 (650-800) | 62 (430) | 16 | – |
| 25CrMo4 +QT (16-40 mm) | 116-138 (800-950) | 87 (600) | 14 | – |
| 42CrMo4 +QT (16-40 mm) | 131-160 (900-1100) | 94 (650) | 12 | – |
| 34CrNiMo6 +QT (16-40 mm) | 145-174 (1000-1200) | 116 (800) | 11 | – |
| 51CrV4 +QT (16-40 mm) | 145-174 (1000-1200) | 116 (800) | 9 | – |
| Grade | Key Composition, % |
|---|---|
| C45 | C 0.42-0.50, Mn 0.50-0.80, Si <=0.40 |
| 25CrMo4 | C 0.22-0.29, Cr 0.90-1.20, Mo 0.15-0.30 |
| 42CrMo4 | C 0.38-0.45, Cr 0.90-1.20, Mo 0.15-0.30 |
| 34CrNiMo6 | C 0.30-0.38, Ni 1.3-1.7, Cr 1.3-1.7, Mo 0.15-0.30 |
| 51CrV4 | C 0.47-0.55, Cr 0.90-1.20, V 0.10-0.25 |
Replaces DIN 17200. Grades map to AISI/SAE 1035/1045/4130/4140/4340/6150, BS 970 080M40/708M40/817M40; property parents for ISO 898-1 classes 8.8-12.9.
For the official CEN (European Committee for Standardization) standards catalogue, see the CEN (European Committee for Standardization) standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We supply EN 10083-1 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
EN 10083-1 ‘Steels for quenching and tempering – Part 1: General technical delivery conditions’. Sets the common requirements (steelmaking, heat treatment, testing, tolerances) for heat-treatable steels; specific grades and property tables are in Part 2 (non-alloy) and Part 3 (alloy). Basis for high-strength Q&T bolt/stud bar (property classes 8.8-12.9).
Ananka Fasteners supplies C35 / C35E, C45 / C45E, 25CrMo4, 42CrMo4, 34CrNiMo6, 51CrV4 to EN 10083-1. See the Grades / Classes Covered table above for full details of each grade.
Minimum tensile strength, yield strength, elongation and hardness requirements vary by grade — see the Mechanical Properties table above for the complete breakdown.
We supply EN 10083-1 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
Yes. For a quotation, provide the required fastener type, grade, nominal size, dimensional standard, quantity and any inspection or certificate requirements.
Need a fastener released to EN 10083-1 for an industrial project? Send the required fastener type, grade, size, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: EN 10083-1 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per EN 10083-1 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
