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We are committed to providing one-stop service for steel pipe products to customers around the world.
The 304 / 304L grade of austenitic chromium-nickel stainless steel tubes and pipes are the most versatile and widely used steel piping products. Type 304 / 304L stainless steel is a very low carbon steel that exhibits excellent corrosion resistance. Also, it offers superior resistance to intergranular corrosion following welding or stress relieving. Besides, the 304 and 304L type grades exhibit good machine ability and excellent weld-ability characteristics with or without filler metals.
Other advantages are its resistance to oxidation, excellent form ability, ease of fabrication and cleaning, excellent strength to weight ratio and good toughness at cryogenic temperatures.
Centerway steel co.,ltd can provide 304/304l stainless steel pipes and plates of various standards, passed ISO9001, SGS and other certificates, accept third-party testing, has complete testing and testing facilities, from product development, raw material supply, production process management, etc. in accordance with international quality The system standards are standardized to provide customers with satisfactory pre-sale, in-sale and after-sale services. Feel free to contact us anytime
Available tube product forms:
Straight
Coiled
Seamless
Seam welded and cold redrawn
Seam welded, cold redrawn and annealed
Specifications - Stainless Steel 304/304L
ASTM:A312, A376,A358, A269,A249, A403, A182, A351
ASME: SA312, SA376
Pressure SA358,SA269, SA249,SA403, SA182, SA351
Seamless:Outer Diameter: Φ3-Φ600mm;Wall Thickness: 0.5-100mm; Length:24000mm
Welded:
Outer Diameter: Φ6-Φ1219mm;Wall Thickness: 0.3-45mm ;Length: 18000mm (Maximum)
ASTM A213 / ASME SA213
ASTM A213 / ASME SA213 is a America specification for stainless steel boiler, super heater, heat exchanger tubes, executed by most world stainless steel seamless tubes mills and factories, minimum wall thickness required in A213 seamless tube, or average wall thickness as customers requirement, tight tolerance of outside and wall thickness stated as A213 standard or A1016
|
ASTM |
A312, A376,A358, A269,A249, A403, A182, A351 |
|
ASME |
SA312, SA376, Pressure SA358,SA269, SA249,SA403, SA182, SA351 |
Chemical Composition (% by weight)
|
|
304 |
304L |
||
|
Element |
Min |
Max |
Min |
Max |
|
C |
- |
0.08 |
- |
0.08 |
|
Mn |
- |
2 |
- |
2 |
|
Ni |
8 |
10.5 |
8 |
12.0 |
|
Cr |
18 |
20 |
18 |
20 |
|
S |
- |
0.03 |
- |
0.03 |
|
N |
- |
0.1 |
- |
0.1 |
|
Si |
- |
0.75 |
- |
0.75 |
|
P |
- |
0.045 |
- |
0.045 |
Mechanical Properties
|
Temper |
304 |
304L |
||
|
Tensile Rm |
76 |
ksi (min) |
70 |
ksi (min) |
|
Tensile Rm |
517 |
MPa (min) |
485 |
MPa (min) |
|
R.p. 0.2% Yield |
31 |
ksi (min) |
25 |
ksi (min) |
|
R.p. 0.2% Yield |
207 |
MPa (min) |
170 |
MPa (min) |
|
Elongation (2" or 4D gl) |
40 |
% (min) |
40 |
% (min) |
