Stainless Steel TP 304 Seamless Pipe
Stainless Steel TP 304 Seamless Pipe
Specifications and appearance quality
A, according to GB14975-2002 "Stainless steel seamless steel pipe" provisions, steel pipe usually length (variable length) hot rolled steel pipe 1.5 ~ 10m, hot extrusion steel pipe is equal to and greater than 1m. Cold drawing finger (rolled) steel pipe wall thickness of 0.5 ~ 1.0mm, 1.0 ~ 7m; If the wall thickness is greater than 1.0mm, 1.5 ~ 8m.
B, hot rolled (hot extrusion) steel pipe diameter 54 ~ 480mm a total of 45 kinds; There are 36 kinds of wall thickness 4.5-45mm. Cold-drawn (rolled) steel pipe diameter of 6 ~ 200mm a total of 65 kinds; There are 39 kinds of wall thickness from 0.5 to 21mm.
C, the inner and outer surface of the steel pipe shall not have cracks, folding, cracking, cracking, rolling, separating and scarring defects, these defects should be completely removed (except for the pipe for mechanical processing), and the wall thickness and outer diameter shall not exceed the negative deviation after removal. Other minor surface defects that do not exceed the allowable negative deviation may not be removed.
D, the allowable depth of the straight. Hot rolled, hot extruded steel pipe, diameter less than or equal to 140mm is not greater than 5% of the nominal wall thickness, the maximum depth is not greater than 0.5mm; The cold-drawn (rolled) steel pipe is not greater than 4% of the nominal wall thickness, and the maximum depth is not greater than 0.3mm.
E, both ends of the steel pipe should be cut into right angles, and remove burrs.
Chemical Composition
|
Weight % |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
304L |
.035 |
2.00 |
.045 |
.030 |
1.00 |
18.0-20.0 |
8.0-13.0 |
Mechanical Properties
|
Grade |
Tensile |
||||
|
Ultimate/Min |
Yield/Min |
Elongation/Min |
|||
|
KSI |
MPA |
KSI |
MPA |
% |
|
|
304L |
70 |
485 |
25 |
170 |
35 |
Physical Properties
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/0C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-1000C (J/kg.K) |
Electrical Resistivity (n.m) |
|||
|---|---|---|---|---|---|---|---|---|---|
|
0-1000C |
0-3150C |
0-5380C |
at 1000C |
at 5000C |
|||||
|
304/L/H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
Grade Specifications
|
STANDARD |
SS 304L |
|---|---|
|
UNS |
S30403 |
|
WERKSTOFF NR. |
1.4306/1.4307 |
|
EN |
X2CrNi18-9 / X2CrNi19-11 |
|
BS |
304S11 |
|
GOST |
03Х18Н11 |
|
JIS |
SUS 304L |
|
AFNOR |
Z3CN18‐10 |
Product Testing
Packaging & Shipping
Product Application
production flow
Production details
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