Stainless Steel Grade 17-4 UNS S17400 half austenitic precipitation-hardening stainless steel, is a kind of unstable austenitic stainless steel, the steel solid solution state, at room temperature for austenitic organization, after cold working, cold treatment, or heated to 750 degrees to adjust processing, austenite transformation martensite, during aging treatment, on the martensitic matrix can be the second phase precipitation and make the steel reinforcement. The role of Al is to form a sedimentation hardening phase for other elements (Ni3Al). In the aging process, the cooling is not urgent, otherwise it is difficult to achieve the reinforcement effect.
S17700 Stainless Steel Chemical Composition | ||||||||
C | Mn | Si | Cr | Ni | P | S | Cu | Al |
≤0.09 | ≤1.00 | ≤1.00 | 16.00-18.00 | 6.50-7.75 | ≤0.035 | ≤0.030 | ≤0.50 | 0.75~1.50 |
Strength of extension σb(Mpa): solid solution,≤ 1030; 565℃ aging,≥1140; 510℃ aging,≥1230
Offset yield strength σb(Mpa): solid solution,≤380; 565℃ aging,≥960; 510℃ aging,≥1030
Elongation δ5(%):solid solution,≥20; 565℃ aging,≥5; 510℃ aging,≥4
Percentage reduction of area ψ(%):565℃ aging,≥25; 510℃ aging,≥10
Hardness: solid solution,≤229HB; 565℃ aging,≥363HB; 510℃ aging,≥388HB
Standard exporting package.
Original package or neutral package.
According to clients’ needs.
Shipped in 10-35 days after payment.
Price
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A: You can contact us through sending inquiry, or get price list by Email.
Delivery
Q: How long is the delivery time?
A: It depends on quantity. Usually, 10-35 working days.
Sample
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A: Of course. We can supply sample, and free for some small value products.
OEM
Q: Do you provide OEM service?
A: Yes, we do. Customized design is available.
Payment
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A: L/C, T/T, Paypal, Western Union, etc.
Certificate
Q: What certificate do your products have?
A： CE, ISO9001, RoHS, SGS, etc.
