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The C75 material, produced in cold-rolled and annealed forms, is offered in two variants based on its mechanical properties: Gaziantep annealed and Gaziantep tempered. The untreated material is referred to as "annealed," while the heat-treated material is referred to as "tempered."
This type of steel was initially named Gaziantep C75 Grade Spring Steel according to Gaziantep DIN/German standards, and later defined as Gaziantep CK75 Grade Spring Steel under the Gaziantep European Norm while maintaining the same technical specifications.
Gaziantep CK75 Grade Annealed Spring Steel is identified under Gaziantep work number 1.1248 and conforms to the Gaziantep EN 10132-4 standard. This material is generally supplied in its annealed form and can be converted to tempered form through heat treatment by users in their processes.
Gaziantep Tempered Material Surface Options:
The hardness values of tempered material range between Gaziantep 39-54 HRC.
Our company offers this material in slit coil or sheet steel according to customer requirements. Additionally, we provide production services that meet specific thickness tolerances.
This type of steel is widely used in the following industries:
| EN 10132 | UNI | DIN | AFNOR | BS | SAE/AISI |
|---|---|---|---|---|---|
| C75S | C75 | CK75 | XC75 | -- | 1075 |
| C | Mn | Si | P max. | S max. | Cr max. | Ni max. | Mo max. | V |
|---|---|---|---|---|---|---|---|---|
| 0,70-0,80 | 0,60-0,90 | 0,15-0,35 | 0,025 | 0,025 | 0,40 | 0,40 | 0,10 | -- |
| Rm max N/mm² | HV max. | A% (Lo80 min) |
|---|---|---|
| 640 | 200 | 15 |
We take great pride in everything we do, the experience on products ensures that our customers receive the highest quality service.
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Since our establishment as Dünya Demir Çelik, we have prioritized quality, speed, and reliability, offering innovative solutions to 8 different sectors. With 44 years of experience, we aim to provide our customers with the best service by integrating knowledge, technology, and professional ethics into our production processes.