ASTM A554 SS Round Pipe Stainless Steel Seamless Rectangular Pipe 2D Cold Rolled

304(1.4301)/304L(1.4307)/304H(1.4948) SEAMLESS&WELDED PIPE

Stainless Steel Grade 304 is the standard 18/8 (18% chrome, 8% nickel) austenitic stainless steel. It is a non-magnetic alloy in the annealed condition, however, becomes magnetic as it is cold worked. It is the most ordinarily utilized of all stainless grades. T304 can be effortlessly welded and is the preferred for many deep drawn, spun or formed parts due to its high ductility.

Stainless Steel Grade 304L has oxidation resistance to a maximum temperature of 1650°F (899°C) continuous without considerable scaling. The maximum temperature for intermittent presentation is 1500°F (816°C). Since 304L is an additional low-carbon variety of 304 it can frequently be utilized in the “as-welded” condition (without annealing), even in severe corrosive conditions, except for applications indicating stress relief. 304L has good welding qualities and can be welded by all standard strategy; however, consideration should be paid to maintain a strategic distance from weld “hot cracking”. To relieve stress during severe forming or spinning welding may be followed by annealing.

Stainless Steel Grade 304H includes a high carbon content making the steel more suitable for utilization in applications where high temperatures are available. The benefit of this grade is that it is an austenitic chromium-nickel steel alloy as well as the greater carbon content distribute to increased tensile and yield strength. The material is recommended for utilizing in ASME pressure vessels in working service above 525° C because of the grade's heat resistant properties.

STOCKING PROGRAM

• Size Range : 1/4″ ~ 36″ NPS (Larger sizes available upon request)
• Schedules : 10, 10s, 40, 40s, 80, 80s, 120, 160 (Custom wall thicknesses available upon request)
• Stainless Steel Grades : 304, 304L, 316, 316L, 316L, 317L, 321 , 347
• Special Alloys : 2205, 254SMo, Monel, Inconel
• Chrome Moly : P5, P9, P11, P22, P91
• Standards : ASTM / ASME

CHEMICAL COMPOSITION

MECHANICAL PROPERTIES

ADVANTAGES:

Strength: Seamless pipes come with the obvious advantage of having no seam and therefore no chance of a weak seam. This means that typically, seamless pipe can withstand 20% more working pressure than welded ones of the same material grade and size.

Resistance: The lack of seam means that seamless pipe can offer higher resistance to corrosion because there is less opportunity for things like impurities and defects that can more commonly occur along a weld.

Less Testing: It goes without saying that seamless pipes don’t require testing for weld integrity – no weld means no test!

Jiangsu Changjian Metal Products Co., Ltd. ,a professional metal raw material supplier. We have more than 10 years of experience in manufacturing stainless steel and carbon steel , which is located in Wuxi, the largest stainless-steel processing center in China. We provide stainless steel,carbon steel and aluminum.Our products include 200/300/400 series and duplex stainless steel coil and sheet, and regular stock are 10,000 tons.Changjian has owned factory and provides a one-stop service for cutting, forming and surface processing of metal products.We are the leading distributor of POSCO-ZPSS and ESS , also cooperates with TISCO,CHENGDE,TSINGSHAN,YONGJIN,HONGWANG,JISCO, Mills.We have more than 10 years' experience in serving stainless steel industries, including green energy, kitchenware and household appliance,petro-chemical,shipbuilding,transit equipment like Auto and CRH(China Railway High-speed),and medical facility etc.,Our products are also widely used for heat-exchange pipe and tube,cookware and tableware,pressure vessel,petrochemical tank,precision electronic instrument,solar water heater,Automobile parts,etc.