1: Brief Introduction Of 17-4PH stainless steel 
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.
Corrosion Resistance:
★Withstands corrosive attacks better than any of the standard hardenable stainless steels.
★Comparable to Alloy 304 in most media.
★Corrosion resistant in some chemical, petroleum, dairy, and food process industries.
★Subject to crevice or pitting attack if exposed to stagnant sea water for any length of time.
Weldability:
★Successfully welded by most common fusion and resistance methods.
★Should not be joined by oxyacetylene welding.
★Generally no pre-heating required.
★Inter-pass temperature must be limited to 248°F.
★Better toughness is obtained in the weld after a complete heat treatment.
Machinability:
★Can be machined in both solution-treated and precipitation-hardening conditions.
★Machining conditions may vary with hardness of material.
★High-speed tools or preferably carbide tools with standard lubrication are normally used.

Other Grades:
201,202,21-4N,301,302,301L,303,303Se,304,304L,304H,304LN,304N,305,S38400,308,309,309S,310,310s,
316,316L,316H,316Ti,316N,316LN,317,317L,317LMN,317LN,321,321H,347,347H,S3100,S31803,S3205,
S32304,S31200,S31260,S32507,405,409,429,430,430F,434,444,403,410S,410,416,420,420F,431F,440A
440B,440C,440F,610,630,631,632,635,660,Alloy 200,Monel 400 ,Alloy K-500 ,Inconel 600 , Incconel 601,
Inconel 625 , Inconel 718 , Alloy 800 ,Alloy 800H,Alloy 800HT,Inconel 825,Alloy 276, Alloy 20, Alloy 59
2: Chemical Composition  3: 17-4PH Stainless Steel Round Bar Process 

4: 17-4PH Stainless Steel Round Bar Diameter Tolerance 

5: About us 
Tianjin Zhongyantiancheng Steel Co.,Ltd(short for ZYTC ) is a professional manufacturer and exporter of steel products in China, located in Tianjin Beichen District, having the biggest port in North China.
With 20 years of development, the group has become the leader in steel, product variety, complete specifications and so on in North China market, large inventories more than 100,000 tons are maintained all the time.
ZYTC is specialized in steel products, especially Stainless steel pipe,Stainless steel bar,Stainless steel plate (TG,KSK,BG,Krupp), Round bar(SHOUGANG,DAYE), Spiral pipe(LIDA), Aluminum steel plate,Aluminum pipe ,Copper and so on . 
ZYTC has cooperated with Tianjin Seamless Steel Tube Plant(TPCO), Baotou Steel Pipe Plant, Chengdu Steel Pipe Plant, Anshan Steel Pipe Plant,Baoshan Steel Pipe Plant and other steel pipe plants.Round bar cooperated with Beijing shougang goup,Tonggang steel group, Daye steel bar group ,Benxi bengang group an so on , Baotai titanium group,Baoji Lixing group,Stainless steel plate cooperated with Shanxi TAIGANG Steel Plate grouop,Baogang group,Shanghai Kelubo group ,and Puxiang steel group. all these corporations mentioned above are our shareholder partners. 
ZYTC principle is: supplying the best products and service,being the best supplier.
The company can make steel product according to particular specifications and materials. ZYTC will perfect our quality management system and supply products of high quality to our customers.
We are all looking forward to establishing business relationships with customers all over the world!* More than 20 years experience in stainless and aluminum steel fields.
* Samples available.
* Specialist metallurgic advice and flexible service.
* High level of expertise, in-depth product knowledge.
* Competitive price, high quality,rich experiences and high reputation
* Delivered on time.
* Good after-sale service.
* Well recognized and trusted by customers.

7: Contact Us