normal color ASTM A240 409 Stainless Steel sheet thickness 0.3mm-100mm

Steel Plate Specification:

Thickness:0.3mm-100mm,

Width:200-3000mm.

Application:409 Stainless Steels are especially useful for applications where oxidation or corrosion protection beyond the capacity of carbon steel and some coated steels is needed.

409 Stainless Steel Introduction

SS 409 contain a certain number of surface inclusions which are the normal result of titanium stabilization additions to improve the steel. Occasionally, rusting may occur

at these inclusion sites and lead to problems with cosmetic appearance. As a result, these steels are not suggested for applications where surface appearance is a factor. In cases where surface appearance is important, 400 stainless steels should be considered.

409 Stainless Steel Usage

Current applications include automotive and truck exhaust systems, including tubular manifolds; agricultural spreaders, gas turbine exhaust silencers, and heat exchangers.409 Stainless Steels are also useful for “difficult-to-form” hardware such as fuel filters.

SS 409 Surface Finish：

2B,8K,hairline,NO.4,NO.1,mirror finish

409 Stainless Steel Typical Chemical Requirements (%)

409 Stainless Steel Mechanical Test Requirements

Henan Steel Metal Materials Co.,Ltd (Seed steel-www(dot)firsteelplate(dot)com) is the only steel supplier in China who provides the most comprehensive types of steel. Our steel plate products include black steel plates, stainless steel plates, galvanized steel plates, checkered steel plates, steel coils and so on. Among all steel plate products of our company, extra wide and thick steel plates, CrMo steel plates, low temperature pressure vessel steel plates, and high strength steel plates are the four featured products. Supioneer Metal Materials Co., Ltd has established longterm strategic cooperative relationships with the producers of the products mentioned above. Powerful product sources and marketing capacity enable us to take the leading place in domestic steel trade. Now the company has shifted its focus to the exportation of steel materials, and our aim is to become the largest and strongest steel materials supplier in China’s international trade.  

We can provide ExtraWide and Extrathick Steel Plate with max thickness of 700mm, max piece weight of 50t, which makes us the only supplier of China who can provide steel plate of such specification. Anti Hydrogen CrMo Steel Plate with max thickness of 198mm and max piece weight of 38t is also available. Our Low Temperature Pressure Vessel Steel Plate is weldable under the temperature condition of -196℃. Representative steel grades of low temperature vessel steel plate are 9Ni (SA553),08NiDR (SA203E), all with better properties compared to international quality standards. We can also provide High Strength Steel Plate with excellent quality. 

The company embraces all kinds of steel plate material products. Product standard grades cover main international standards for steel materials, such as ASTM, ASME, API, JIS, DIN, BS, etc., and these products are sold across over 100 countries and areas in Middle east, Southeast Asia, Africa, South America, etc. We now have four large scale warehouses for abundant product supply: one is located in Shanghai and has a stock inventory of about 7, 000 tons; the warehouse in Qingdao has a stock inventory of about 6, 500 tons; and each warehouse in Tianjin and Zhengzhou has about 3, 000 tons of stock inventory. Based on the sound foundation of steel resources, Supioneer Metal Materials Co., Ltd also adopts the "one stop" service, allowing customers to enjoy the lowest cost for steel cutting, welding, drilling, galvanizing, and the best quality service at the same time.