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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

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City:wuxi

Province/State:jiangsu

Country/Region:china

Contact Person:MrGao Ben

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China S17700 17-7 PH AISI 631 Stainless Steel Round Bar Stock 260mm wholesale

S17700 17-7 PH AISI 631 Stainless Steel Round Bar Stock 260mm

Name: S17700 177 PH AISI 631 Stainless Steel Round Bar Stock 260mm
Brand: MITTEL
Price: 2300 USD

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Brand Name :MITTEL

Model Number :631 17-7PH

Certification :ISO/NV/SGS

Place of Origin :Jiangsu，China

MOQ :1ton

Price :USD2300-5000per ton

Payment Terms :L/C, T/T, Western Union

Delivery Time :within 10days after received the payment

Packaging Details :Standard seaworthy packaging / as per buyer’s request

Standard :ASTM, AISI, DIN, EN, GB, JIS

Dimensions :3mm-500mm

Type :Round

Special Use :Valve Steels

Length :Customers' Requirements

Surface :Pickled Bright Polished Satin

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Stainless Steel PH 17-7 Material Round Bar Ø260 ASTM S17700 AISI631,SAE17-7PH Forge Rod

17-7 PH is a chromium-nickel-aluminum precipitation hardening stainless steel that provides high strength and hardness and a moderate level of corrosion resistance up to 600˚F. This grade can be easily formed in the austenitic condition similar to Type 301 stainless steel and hardened to high strength levels using relatively low heat treatments that minimize distortion. The corrosion resistance of 17-7 PH is comparable to that of Type 304 stainless steel, especially in the CH 900 temper, and it has been used for spring applications, washers, eyelets, fittings and fasteners.

Heat treatments can strengthen this type of stainless steel. The typical process for 17-7 PH heat treatment has three or four steps:

Conditioning using austenite.
Cooling, which turns the austenite into martensite.
Precipitation hardening until Condition TH 1050 or RH 950 has been reached.
To achieve the highest mechanical properties Condition A material is transformed to martensite at the mill by cold reduction to Condition C. After fabrication by the user, a single low-temperature heat treatment is preformed to achieve condition CH 900.

Chemical Composition

Element	Content(%)
Chromium, Cr	16-18
Nickel, Ni	6.50 – 7.75
Manganese, Mn	1 max
Silicon, Si	1 max
Aluminum, Al	0.75 – 1.50
Carbon, C	0.09 max
Phosphorous, P	0.040 max
Sulfur, S	0.030 max
Iron, Fe	balance

Physical Properties

Properties	Metric	Imperial
Density	7.80 g/cm3	0.282 lb/in3
Melting Range	1404-1440°C	2560-2625°F

Mechanical Properties

Properties	Metric	Imperial
Tensile Strength	1170 MPa	170000 psi
Yield Strength	965 MPa	14000 psi
Modulus of Elasticity	204 GPa	29600 ksi
Poisson’s Ratio	0.27-0.30	0.27-0.30
Elongation at Break	6%	6%
Hardness, Rockwell C	38	38

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