17-4 Stainless Steel Bar

UNS S17400 (Grade 630)

17-4 stainless steel bar, also known as UNS S17400, 17-4 PH and Grade 630, is one of the original precipitation hardened grades developed in the 50’s. Primarily comprised of 17% chromium, 4% nickel, 4% copper, with the balance being iron. There are also trace amounts of manganese, phosphorus, sulfur, silicon, columbium (or niobium) and tantalum. Stainless Steel 17-4 PH delivers an excellent combination of oxidation and corrosion resistance. Other characteristics include high strength, toughness, and quality mechanical properties at temperatures up to 600° F. Engineers and designers frequently choose Stainless Steel 17-4 PH due to its high strength and superior corrosion resistance when compared to many other stainless steels.

Stainless Steel 17-4 PH can be forged, welded and formed. Machining may be formed in the solution-annealed state, or in the final heat treat condition. Desired mechanical properties such as ductility and strength can be achieved through heating the material at various temperatures.

Industries that use 17-4 PH include:

• Aerospace
• Chemical
• Food processing
• General metal working
• Paper industries
• Petrochemical
• Petroleum

Products partially or completely constructed of 17-4 PH include:

• Air spray guns
• Bearings
• Boat fittings
• Castings
• Dental components
• Fasteners
• Gears
• Golf club heads
• Hardware
• Load cells
• Molding dies
• Nuclear waste casks
• Precision rifle barrels
• Pressure sensor diaphragm
• Propeller shafts
• Pump impeller shafts
• Sailboat self steering systems
• Springs
• Turbine blades
• Valves

Material Grade

Product Specification

Chemical Composition

We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.

 Identification labels are tagged accordingto standard specification or customer’s instructions. 

Special packing is available as per customer’s requirement.

Stainless Steel Coil Package

Stainless Steel Sheet / Stainless Steel Plate Package

Stainless Steel Strip Package

Shipment Package

Our company is based in Wuxi,  gathering city of industrial stainless steel in China.

We specialized in stainless coils, sheets and plate, stainless steel pipe and fittings, stainless steel tubes, and also aluminum products and copper products.

Our products have been highly praised by our clients from Europe, America, the Middle East, African and Southeast Asia. We will offer competitive products and comprehensive service to customers. 

Stainless Steel Grade: 201, 202, 202cu, 204, 204cu, 303, 304, 304L, 308, 308L, 309, 309s, 310, 310s, 316, 316L, 321, 347, 410, 416, 420, 430, 430F, 440, 440c,

Alloy Grade :Monel, Inconel, Hastolley, Duplex, Super Duplex, Titanium, Tantalum, High Speed Steel, Mild Steel, Aluminium, Alloy Steel, Carbon Steel, Special Nickel Alloys

In form of : Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Angles, Channels, Profiles, Wires, Wire Rods, Sheets, Plates, Seamless Pipes, ERW Pipes, Flanges, Fittings,etc.

Q1: What is stainless?

A: Stainless means no marks on the steel surface, or a kind of steel that is not damaged by air or water and that does not change color, spotless, resistant to staining, rusting, the corrosive effect of chemicals.

Q2: Does stainless mean no rusting?

A: No, stainless means not easy to get stained or rusty, it has speical ability to reisist staining, rusting and corrosion.

Q3: Do you supply stainless steel sheets?

A: Yes, we supply different types of stainless steel sheets, with thickness ranges from 0.3-3.0mm. and in different finishes.

Q4: Do you accept cut to length service?

A: Of course, customer’s satisfaction is our top priority.

Q5: If i have a small order, do you accept small order?

A: Not a problem, your concern is our concern, small quantities are accepted.

Q6: How can you guarantee your product quality?

A: First, from the very start, we have already implemented a spirit to their mind, that is quality is life, our professional workers and staffs will follow up every step till the goods packed well and shipped out.

Q7: Will you pack the products?

A: Professional people do professional packing, we have different types of packing optional to customers, economic one or better one.

Q8: What do you need to know from customer before accurate quotation?

A: For an accurate quotation, we need to know grade, thickness, size, surface finish, color and quantity of your order, and also the destination of the goods. Customized product information will be needed more, like drawing, layout and plan. Then we will offer competitive quotation with the above information.

Q9: What kind of payment term you accpet?

A: We accept T/T, West union, L/C.

Q10: If this is a small order, will you delivery the goods to our agent?

A: Yes, we are born to solve problems of our customers, we will get the goods safely to your agent’s warehouse and send you the pictures.

Q11: Do you just make flat sheet? I want to make a fabrication for my new project.

A:  No, we mainly produce stainless steel flat sheet surface treatment, at the same time, we manufacture customized metal finished product as per customer’s drawing and plan, our technician will take care of the rest.

Q12: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Iran,
      Turkey, Jordan, etc.
Q13: How can I get some samples?
A: Small samples in store and can provide the samples for free. Catalgue is available, most
      patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q14: What is the delivery ?
A: Sample order’s delivery time is 5- 7 days. Container orders are about 15-20 days.

Q15: What is the application about your Products?
A:  1.elevator door/cabin or and escalator’s side-wall.
      2.Wall cladding inside or outside meeting room/ restaurant.
      3.Facade when cladding over something, like columns in the lobby.
      4.Ceiling in the supermarket. 5.Decorative draws in some entertainment places.
Q16: How long Can You Guarantee for This Product/Finish?
A: Color guarantee for more than 10 years. Original materials quality certificate can
       be provided.