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You are here: Home » Products » S17700 631 17-7PH SUS631 Heavy Hex Nut 07Cr17Ni7AL 1.4568 Wholesale
S17700 631 17-7PH SUS631 Heavy Hex Nut 07Cr17Ni7AL 1.4568 Wholesale
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Product: Views:445S17700 631 17-7PH SUS631 Heavy Hex Nut 07Cr17Ni7AL 1.4568 Wholesale 
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Last updated: 2017-11-19 01:44
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17-7PH Nut
The nut is a fastener with internal threads and used in conjunction with a screw for mechanical parts for movement or power.

BDF can offer all kinds of hot forged and cold formed nuts such as hexagon nuts, heavy hex nuts, hexagon coupling nuts, hexagon thin nuts, hexagon castle nuts, self locking nuts, hexagon domed cap nuts and other non-standard nuts according to customer drawings. The size ranges from M6-M100 in METRIC and 3/8” to 3-1/2” in INCH.
After the solution treatment, it is unstable austenite structure, 17-7PH has good plastic toughness and processability, and has been adjusted to make the austenite precipitation carbide component change, and then through the martensitic transformation treatment, most of the organization into toughness Better low-carbon tempered martensite, this state for the use of steel state, have a good medium temperature mechanical properties. Corrosion resistance is better than general martensitic stainless steel.
Applications:
Aerospace industry, biomedical hand tools, chemical and food processing equipment, nuclear waste processing and storage, general metalworking, and paper mill equipment.
Chemical composition:

%

Ni

Cr

C

Mn

Si

P

Cu

Al

S

Fe

Min

6.5

16.0






0.75


Balance

Max

7.5

18.0

0.09

1.0

1.0

0.035

0.5

1.50

0.03

Physical properties:

Density

7.65 g/cm3

Melting range

1415~1450℃

17-4PH Alloy minimum mechanical properties in the room temperature:

Alloy state

Tensile strength Rm N/mm²

Yield strength RP 0. 2N/mm²

Elongation A 5 %

HRC(HBS)

solution 1000-1100℃ fast cooling

≤1030

≤380

≥20

≤229

565℃ aging

≥1140

≥960

≥5

≥363

510℃ aging

≥1230

≥1030

≥4

≥388

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