Shandong Jeno Steel Group Co., Ltd.
Dura 17-7PH EN 1.4568, ASTM TYPE 631
It performs well at temperatures up to 600ºF.
Fabrication processes are similar to other chromium-nickel stainless steels.
Classification :
Keywords: Handheld refractometer
PRODUCT DETAILS
Product information
The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.
17-7PH, AISI 631, X7CRNIAL17-7, 1.4568 - SPECIFICATION AND APPLICATION
Stainless steel from the group of age-hardened PH with the highest content of Chromium - 17% and Nickel - 7% in relation to PH of grades 15-5 and 17-4. It has excellent strength properties, high hardness and elasticity, good corrosion resistance and resistance to high temperatures and deformation.
In terms of chemical composition, the corrosion resistance equals that of AISI 301 / 1.4310 steel, in terms of mechanical properties it is a much better choice for responsible parts and components exposed to fatigue. In the annealed state, the steel has an austenitic structure, after heat treatment of ageing it turns into martensite, increasing its strength properties along with obtaining magnetic properties.
The material is used on valve parts, tanks, springs, spring washers, food knives, diaphragms, low and high temperature parts, heat exchangers, special fittings and installations, machine constructions and components. Steel is intended for the aerospace, petroleum, chemical and petrochemical industries, energy, food and cryogenic industry in the form of strips, wires, sheets and bars.
Technical data
The chemical composition is given as % by mass.
| Standard | Grade | C | Mn | Cr | Ni | Mo | N | Other |
| Typical | 1.4568 | 0.08 | 17.0 | 7.0 | Al:1.0 | |||
| EN 10088-2 | 1.4568 | ≤0.09 | ≤1.0 | 16.0-18.0 | 6.5-7.8 | Al:0.7-1.5 | ||
| EN 10088-3 | 1.4568 | ≤0.09 | ≤1.0 | 16.0-18.0 | 6.5-7.8 | Al:0.7-1.5 | ||
| EN 10088-4 | 1.4568 | ≤0.09 | ≤1.0 | 16.0-18.0 | 6.5-7.8 | Al:0.7-1.5 |
| andard | Steel Grade | |||||||
|---|---|---|---|---|---|---|---|---|
| Chemical composition % | ||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Al: | |
| ASTM | 17-7PH - 17-7 PH | |||||||
| <0.09 | <1.0 | <0.5 | <0.025 | <0.025 | 16.00 - 17.25 | 6.50 - 7.75 | 0.75 - 1.25 | |
| UNS | S17700 - AMS 5529/5528 - AMS 5644 - AMS 5678 | |||||||
| <0.09 | <1.0 | <1.0 | <0.040 | <0.030 | 16.0 - 18.0 | 6.5 - 7.7 | 0.75 - 1.50 | |
| EN | X7CrNiAl17-7 - 1.4568 | |||||||
| <0.09 | <1.0 | <0.7 | <0.040 | <0.015 | 16.0 - 18.0 | 6.5 - 8.3 | 0.7 - 1.5 | |
| SUS | SUS 631 | |||||||
| <0.09 | <1.0 | <1.0 | <0.040 | <0.030 | 16.00 - 18.00 | 6.50 - 7.75 | 0.75 - 1.50 | |
| Standard | Grade | Rp0.2 | Rp1.0 | Rm | Elongation | Impact strength | Rockwell | HB | HV |
| MPa | MPa | MPa | % | J | |||||
| Product type: Cold rolled coil and sheet | |||||||||
| Typical (thickness 1 mm) | |||||||||
| EN 10088-2 | 1.4568 | ≤ 1030 | ≥ 19 | ||||||
| Product type: Hot rolled coil and sheet | |||||||||
| Typical (thickness 4 mm) | 330 | 360 | 850 | 37 | 94 | ||||
| Product type: Hot rolled quarto plate | |||||||||
| Typical (thickness 15 mm) | 210 | 240 | 700 | 50 | |||||
| Product type: Wire rod | |||||||||
| Typical | 210 | 240 | 700 | 50 | |||||
1)Elongation according to EN standard:A80 for thickness below 3 mm.A for thickness = 3 mm.Elongation according to ASTM standard A2” or A50.
Warehouse storage
Shandong Jienuo Metal Products Co., Ltd. has a registered capital of 250 million yuan, more than 635 employees, 100 million yuan of property/plant equipment, covering an area of more than 300 acres, and has passed the international quality management system, energy management system, occupational health and safety management system and other standards. The company has advanced production equipment, superb technical force, excellent management and technical personnel, and strong financial strength to provide a strong guarantee for the production of high-quality, sophisticated and cutting-edge products.
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The company has ISO9001 certification, EU CE10219 system certification, and Swiss SGS quality standard certification. In the future, the company will be a comprehensive modern enterprise featuring international trade and modern logistics as its development direction. Work together to make unremitting efforts for the green future of the steel industry in China and the world.
Application field
Widely used in prefabricated steel structure buildings, glass curtain wall engineering, steel structure engineering, large venues, airport construction, highways, roads, decorative guardrails, tower crane manufacturing, photovoltaic projects, greenhouse agricultural shanty buildings, bridge manufacturing, ships, automobile manufacturing, machinery In many fields such as manufacturing, it has been well received in major construction projects.
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