304 Grade seamless stainless steel tubes Most versatile and common stainless steels on the market, 304 stainless steel is the most widely used alloy of its kind. Essentially, grade 304 is an austenitic chromium alloy that is also known as "18/8" stainless steel as the steel composition is 18% chromium and 8% nickel.
304 Stainless Steel tubes offered by Gnee Steel are easily manufactured using standard commercial procedures in which, compared to carbon steel, this stainless steel is more resistant and tends to harden quickly.
Specification of 304 stainless steel pipes and tubes
standards: ASTM A312, A213, A249, A269, A358, A409, A554
Outer diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel tubes available Ex-stock
Thickness range: 0.3 mm - 50 mm, SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
form: Round tubes / SS 304 tubes, Round tubes / SS 304 tubes, Round tubes / SS 304 tubes, SS 304 round tubes, SS 304 "U shape", Pan SS 304 dry coils, SS 304 hydraulic tubes
Length: single random, double random and required length
End: smooth end, beveled end, tense
finishing: Seamless, welded, brushed, pickled, pickled and pickled solution up to O.D. 219.1 mm, polished grain 120 - 600, polished mirror
Stainless steel tube and tube TP304 Chemical composition
| steel | C (%) | Mn (%) | Yes (%) | P (%) | S (%) | Faith (%) | Cr (%) | Ni (%) |
| 304 | .08 max | 2 max | 1 max | .045 max | .03 min | balance | 18 - 20 | 8 - 10.5 |
Mechanical properties of TP304 steel pipes and pipes
| density | Melting range, C | Elongation% | Tensile strength (Mpa) | Production Force (Mpa) | Hardness (Brinell) |
| 8 | 1400oC | 40 | 515 | 205 | 201 |
Equivalent standard for pipes and tubes in stainless steel 304
| standard | SS 304 |
| Uns | S30400 |
| WERKSTOFF NR. | 1.4301 |
| Afnor | Z7CN18-09 |
| Jis | YOUR 304 |
| GOST | 08Х18Н10 |
| Bs | 304S31 |
| in | X5CrNi18-10 |
Tuberia and stainless steel tube 304
The 304 stainless steel tube and tubes are the main tube of the oil and chemical industry, medicine, food, wastewater treatment, boiler tube and heat exchanger. It is produced by hot rolling and cold stretching. The glossy surface is the biggest advantage and is mainly used in buildings, elevators, handrails, precision equipment, etc.
ASTM A312 / A213 stainless steel tube and tube standard packaged :
We can give peeled packaging, in packing package, packaging box, wood protection on both sides of pipes and conveniently protected for a dignified maritime delivery. According to customer requirements.
Inspection and testing of seamless stainless steel pipes and pipes :
Tensile strength, production resistance, elongation, combustion, flattening, bending, hardness, impact test), chemical composition inspection, non-destructive testing, hydrostatic testing.
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