High Hardness 17 - 4PH Hardened Steel Plate For Shaft And Bearing

Steel 17-4 PH is the most widely used of all the precipitation-hardening stainless steels. Its valuable combination of properties gives designers opportunities to add reliability to their products while simplifying fabrication and often reducing costs.

This valuable alloy is widely used in the aerospace, chemical, petrochemical, food processing, paper and general
metalworking industries.

17-4 PH is a martensitic precipitation-hardening stainless steel that provides an outstanding combination
of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C), good toughness

in both base metal and welds, and short-time, low-temperature heat treatments that minimize warpage and scaling.

Composition %

Carbon 0.07 max

Manganese 1.00 max

Phosphorus 0.040 max

Sulfur 0.030 max

Silicon 1.00 max

Chromium 15.00 - 17.00

Nickel 3.00 - 5.00

Copper 3.00 - 5.00

Columbium plus Tantalum 0.15 - 0.45

Bloom(Suzhou) Materials Co., Ltd ，which located in the beautiful city of Zhangjiagang , Suzhou,China. 
Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on the alloy materials. Spot welding accessories and twin extruder spare parts. 

With independent research and development team, Bloom focuses on technological innovation. It has provided super wear resistance, corrosion resistance, high temperature resistant core parts for many twin screw extruder users both at home and abroad and blending modification of enterprises. With continuous pursuit of technological innovation, we committed to providing customers with high quality products and services. In the global market, Our products are widely used in all fields such as plastics, miners, energy, aviation and etc. High-quality products can be developed according to customer needs combined with the actual working conditions. Whether it is high temperature, high corrosion conditions, or high torque, high strength mechanical needs, Bloom’s products can perform the task excellently. It can achieve excellent performance, stable quality, reasonable price, timely delivery, perfect after-sales.
We will advance with the times with the management idea of cooperation, win-win, integrity and open, to provide customers better products and more efficient service. Share a brilliant tomorrow with you!

Products Scope of Bloom Alloy

Nickel and iron base  Alloy(KCF alloy, Nickel alloy)

Spot Welding Accessories(Electrodes, Cap tips , Guide Pins and so on)
Twin Screw Extruder Spare Parts
Parallel Twin Screw Extruder Parts 
Conical Screw Extruder Parts

Other Precision Alloy Materials and Parts

Service  of Bloom

Alloy Material  Self Production

Non-Standard Product Reseach and Test

Precision Machinning

Spot Welding Parts offering

Twin Screw Extruder Spare Parts Supply

Logistics Service

After sales service

Advantages of Bloom 

Experienced Engineers in Alloy Businss
More then 20 years experience in alloy materials offering

High Quality Control System

Authorized Certificates

Guaranteed Delivery and Quality

More then 20+Countries customers trust.

Bloom is engaged in offering special and high quality performance alloy and parts to the whole world, Choose Bloom, Choose a sucessful business partener!