17-4PH ANNEALED STAINLESS STEEL

Classification :

The 17-4 stainless steel grade is an age-hardening martensitic alloy that combines high corrosion resistance and strength. Unlike conventional martensitic steels, it weldable by all standard methods, and achieves hardening with simple low-temperature treatment over a short period of time.

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Product Information

Alloy 17-4 is a chromium-copper precipitation hardening stainless steel that is used for applications requiring high strength and a moderate level of corrosion resistance. It is one of the most widely used precipitation hardening grades, as it has high strength hardness up to about 572°F while demonstrating good corrosion resistance in all heat treated conditions. Alloy 17-4 has adequate resistance to atmospheric corrosion or in diluted acid salts where its corrosion resistance is equivalent to Alloy 304 or 430. Alloy 17-4 can be heat treated to a variety of temperatures to develop a wide range of properties. Its mechanical properties can be optimized with heat treatment where very high yield strength up to 180 ksi can be achieved. Alloy 17-4 should not be used at temperatures above 572°F or at very low temperatures.

Technical data

17-4 Stainless Steel
This martensitic precipitation hardening stainless steel has a combination of high hardness and strength after suitable heat treatment. It also has similar corrosion and heat resistance to Grade 304. The two terms "Type 630" and "17-4PH" refer to the same grade.

Composition:

Carbon: 0.07 max
Manganese: 1.00 max
Phosphorus: 0.040 max
Sulfur: 0.030 max
Silicon: 1.00 max
Chromium: 15.00 - 17.50
Nickel: 3.00 - 5.00
Copper: 3.00 - 5.00
Iron: Balance

Physical Properties:

Melting Point: 2560 - 2625°F (1404 – 1440°C)
Density: 0.282 lbs/in3 / 7.8 g/cm3
Modulus of Elasticity in Tension: 28.5 X 106 psi / 197 GPa

Mechanical Properties:

Condition: Solution Treated (A)
Tensile Strength Minimum (psi): 160,000
Yield Strength Minimum 0.2% offset (psi): 145,000
% Elongation in 2” Typical: 5%
Hardness: Rockwell B85

Condition: Hardened + Aged (TH1050)
Tensile Strength Typical (psi): 200,000
Yield Strength Typical 2% offset (psi): 185,000
% Elongation in 2": 8%
Hardness: Rockwell C35

Condition: Aged (H1075)
Tensile Strength Typical (psi): 175,000
Yield Strength Typical 2% offset (psi): 165,000
% Elongation in 2": 8%
Hardness: Rockwell C37

Condition: Aged (H900)
Tensile Strength Typical (psi): 210,000
Yield Strength Typical 2% offset (psi): 200,000
% Elongation in 2": 7%
Hardness: Rockwell C45

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The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

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Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

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Stainless Steel Plate