Polished Round 304 Seamless Ss Tubing Wall Thickness 1mm-8mm For Mechanical Parts

Basic Information
Place of Origin: CHINA
Brand Name: Changying,JQ,
Certification: SGS TUV
Model Number: 304
Minimum Order Quantity: 1 ton
Price: Negotiable
Packaging Details: waterproof paper and steel strip reinforcement,one package about 2.5-3 tons pr as your special request
Delivery Time: 12-15 working days
Payment Terms: T/T, L/C
Supply Ability: 200 tons per month,special size will be limited
Detail Information
Surface: Black,bright Ni: 8%
Used: Petroleum, Chemical, Medical, Food, Light Industry Standard: ASTM A312
Other Grade: 304l,321,316L,309S,310S,321,2205,904L Mark: Grade,standard,size
Density: 7.93 G/cm3 Weight/M: (OD-T)*T*0.02491
Thickness: 1mm-8mm OD: 6-630mm
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seamless stainless steel tubing


seamless carbon steel pipe

Product Description

ASTM A312 Stainless Steel TP304 Seamless Pipe

Material note of 304 304 Seamless pipe

with no hole, no sand holes, no black spots, no cracks, smooth solder road. Bending, cutting, welding performance advantages, nickel content stability of the advantages.304 Seamless pipe is resistant to air, steam, water and other weak corrosive medium and acid, alkali, salt and other chemical etching of the corrosion of the steel pipe. Also known as stainless steel pipe rust-resistant.


Special of TP 304 Stainless steel seamless pipe:
The corrosion resistance of 304 seamless tubes depends on the alloying elements contained in the steel. Chromium is to make stainless steel to obtain the basic elements of corrosion resistance, when the chromium content of steel reached about 12%, chromium and corrosive medium oxygen, in the steel surface formation of a very thin oxide film (self-passivation film), can prevent the steel matrix further corrosion. In addition to chromium, stainless steel seamless pipe commonly used alloy elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc. to meet the various uses of stainless steel structure and performance requirements


304 stainless steel
Standard Grade Chemical Composition % Temper Yied strength/Mpa Tensile strength/Mpa Elongation % Hardness
GB 0Cr18Ni9 C≤0.08,Mn≤2.00,Si≤1.00,P≤0.045,S≤0.030,Cr 18.0~20.0,Ni 8~11 Annealed,hot rolled/cold rolled ≥205 ≥520 ≥30 HV≤200
USA 304
German 1.4301


For more check:

Mark words on seamless stainless steel pipe

Polished Round  304 Seamless Ss Tubing Wall Thickness 1mm-8mm For Mechanical Parts 0
































304 Seamless pipe is a hollow long round steel, widely used in petroleum, chemical, medical, food, light industry, mechanical instruments, such as industrial pipelines and mechanical structural components. In addition, the bending, torsional strength of the same time, light weight, widely used in the manufacture of mechanical parts and engineering structures. Also used for the production of various conventional weapons, barrels, shells and so on.


304 Seamless pipe thickness thicker, it is more economical and practical, the thinner the wall thickness, its processing costs will be greatly increased; 304 Seamless tube of the process to determine its limitations, the general seamless steel tube accuracy: uneven wall thickness, the tube surface brightness, low, fixed-ruler cost high, and the appearance of Hemp point, black spots are not easy to remove; 304 Seamless pipe inspection and shaping must be processed off-line. So it shows its superiority in high pressure, high strength and mechanical structure material.

ASTM 304 Chemical and Mechanical Date share:

Typical Chemical Composition
% 304 304L
C 0.08 max. 0.03 max.
Mn 2 2
Si 0.75 0.75
P 0.045 0.045
S 0.03 0.03
Cr 18-20 18-20
NI 10.5 10.5
N 0.1 0.1
Typical Mechanical Properties
Grad 304 304L
Tensile Strength
520 500
210 210
Proof Stress
0.2% (MPa)
210 200
Elongation A5 (%) 45 45
Hardness Rockwell B 92 92
Typical Physical Properties
Property Value  
Density 7.93 g/cm3  
Melting Point 1400-1450°C  
Modulus of Elasticity 193 GPa  
Electrical Resistivity 0.072x10-6 Ω.m  
16.2 W/m.K at
Thermal Expansion 17.2x10-6 /K at


Polished Round  304 Seamless Ss Tubing Wall Thickness 1mm-8mm For Mechanical Parts 1


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Contact Details

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