304/304L 316/316L 321 904L Seamless Stainless Steel Tube

product description
Stainless Steel Pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines and mechanical structural parts such as petroleum, chemical, medical, food, light industry, mechanical instruments, etc. In addition, when the bending and torsional strength is the same, the weight is relatively light, so it is also widely used to manufacture mechanical parts and engineering structures. It is also commonly used as furniture and kitchenware.
Stainless Steel pipe is a kind of economical cross-section steel. It is an important product in the iron and steel industry. It can be widely used in life decoration and industry. Many people on the market use it to make stair railings, window guards, railings, furniture, etc.
System description: 304 stainless steel is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good thermal workability, such as stamping and bending, without heat treatment hardening (service temperature - 196 ºC - 800 ºC). It is resistant to corrosion in the atmosphere. If it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. It has good machinability and weldability. Plate heat exchangers, bellows, household products (category 1 and 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, ship parts, etc. 304 stainless steel with strictly controlled content can also be called food-grade 304 stainless steel.
Product standard
For 304 stainless steel, the Ni element in its composition is very important, which directly determines the corrosion resistance and value of 304 stainless steel.
The most important elements in 304 are Ni and Cr, but they are not limited to these two elements. Specific requirements are specified by product standards. According to the common judgment in the industry, as long as the Ni content is greater than 8% and the Cr content is greater than 18%, it can be considered as 304 stainless steel. This is why this type of stainless steel is called 18/8 stainless steel in the industry. In fact, the relevant product standards have very clear provisions for 304, and these product standards have some differences for different shapes of stainless steel. Below are some common product standards and tests.

To determine whether a material is 304 stainless steel, it must meet the requirements of each element in the product standard. As long as one does not meet the requirements, it cannot be called 304 stainless steel.

编号	标准/S30400	C	Mn	P	S	Si	Cr	Ni	N	Cu
1	ASTM A276/A276M-15	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
2	ASTM A959-11	0.07	2.00	0.045	0.030	1.00	17.5-19.5	8.0-11.0
3	ASTM A240/A240M-15a	0.07	2.00	0.045	0.030	0.75	17.5-19.5	8.0-10.5
4	ASTM A182/A182M-15	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0	0.10
5	ASTM A193/A193M-15	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
6	ASTM A269/A269M-15	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
7	ASTM A312/A312M-15a	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
8	ASTM A320/A320M-15a	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
9	ASTM A403/A403M-15	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
10	ASTM A493-09(2013)	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-10.5	0.10	1.00
11	ASTM A554-15a (MT-304)	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
12	JIS G4303:2012	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-10.5
13	JIS G4304:2012	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-10.5
14	JIS G4305:2012	0.008	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0
15	GB/T 20878-2007	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0

Scope of application

304 stainless steel
System description: 304 stainless steel is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good thermal workability, such as stamping and bending, without heat treatment hardening (service temperature - 196 ºC - 800 ºC). It is resistant to corrosion in the atmosphere. If it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. It has good machinability and weldability. Plate heat exchangers, bellows, household products (category 1 and 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, ship parts, etc. 304 stainless steel with strictly controlled content can also be called food-grade 304 stainless steel.
316 stainless steel
Characteristics: Due to the addition of Mo, its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and can be used under harsh conditions; Excellent work hardening (non magnetic); Excellent high-temperature strength; No magnetism in solution state; Cold rolled products have good gloss and beautiful appearance; Compared with 304 stainless steel, the price is higher.
Due to the addition of Mo element, the corrosion resistance and high temperature strength of 316 stainless steel have been greatly improved, and the high temperature resistance can reach 1200-1300 ºC, which can be used under harsh conditions.
Use: equipment for seawater, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD poles, bolts, nuts.

Product Parameters

Thickness	0.25-20mm;or as required
Dimensions	10-2020mm;Dimensions
Length	1000-12000mm,or as required
Technique	Hot Rolled Or Cold Rolled
Surface treatment	Rust remove, black painting,Galvanized, antirust oil, varnish, 3PE,
Standard	ASTM,JIS,GB,DIN,EN
Payment Terms	T/T, L/C at sight,West Union
Heat Treatment	Annealed; Quenched; Tempered
Certification	CE, ISO, COC,SGS,BV,Mill Certificate
price terms	FOB,CRF,CIF,EXW, CPT
Grade	A35,A36;Q195-Grade B, SS330, SPC, S185;Q215-Grade C,CS Type B, SS330, SPHC,Q235---Grade D, SS400, S235JR, S235JO, S235J2,Q345---SS500, ST52,S355JR
Delivery Detail	Standard has Stock;  Normal About 3-5days; Custom-made 15-20days;According to order's quantity.
Packing	standard export packing (inside:water proof paper,outside:fumigated wooden box)Hexagon Shape Bundle, Covered With Tarpaulin, Containers Or In Bulk

Company Profile

Shandong Zinc-plastic Moment Steel Co., Ltd., located in Liaocheng, Shandong, the largest steel pipe production base in China, is the earliest subsidiary of Shandong Iron and Steel Group. Founded in 2005, the company has now developed into a large enterprise with 12 stainless steel pipe production lines and an annual production capacity of 1 million tons. In 2017, the company built a new production workshop with an investment of 250 million yuan in the first phase, covering an area of 150 mu. The ERW straight seam high frequency resistance process was used to produce welded pipes for oil and natural gas engineering, with an annual output of about 300000 tons. It was put into production on June 19, 2008. The company has more than 900 employees, including 67 middle and senior technicians and 16 with senior titles.
Shandong Zinc-plastic Moment Steel Co., Ltd., has been rated as the first batch of China's national inspection-free product enterprises, the first batch of China's well-known trademark enterprises and the first China's top 500 enterprises in the industry. The products sell well all over the country and are exported to more than 50 countries such as the European Union, the United States, Australia, Southeast Asia and the Middle East. They are widely used in many national key projects such as the Three Gorges Project, the Capital International Airport, Shanghai Pudong International Airport, the Natural Gas Reconstruction Project of China (Hong Kong) Gas International Co., Ltd., and the Jin-Jin Expressway.
Main business: stainless steel pipe, hot-dip Galvanized Steel Pipe, oil casing, spiral welded pipe, square pipe, steel-plastic composite pipe welded pipe, etc.

FAQ

Q:What is your advantage?
A:Honest business with competitive price and professional service on export process.
Q:Can you give warranty of your products?
A:Yes,we extend a 100% satisfaction guarantee on all items.Please feel free to feedback immediately if you are not pleased with our quality or service.
Q:How to get a sample?
A:All the samples we are charged. You need to tell us your specific address then we will send by DHL or Fedex to you. All the fees should be charged by yourself.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.