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Dura 17-7PH EN 1.4568, ASTM TYPE 631
The 17-7 stainless steel grade is particularly well suited for high strength, corrosion resistant applications. It performs well at temperatures up to 600ºF. Fabrication processes are similar to other chromium-nickel stainless steels.
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.
FAQ
Q1. Can I have a sample order for stainless steel sheet plate products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-5 days;
Q3. Do you have any MOQ limit for stainless steel sheet plate products order?
A: Low MOQ, 1pcs for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. For mass products, ship freight is prefered.
Q5. Is it OK to print my logo on products?
A: Yes. OEM and ODM are available for us.
Q6: How to ensure the quality?
A:Mill Test Certificate is supplied with shipment. If needed, a Third Party Inspection is acceptable
Keywords: Dura 17-7PH EN 1.4568, ASTM TYPE 631
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