| Specifications | Range |
| Out Diameter |
½” nominal through 26” |
| Wall Thickness |
up through 4” thick& heavier upon request |
| Length | 3.0m-18m |
Alloy steel pipes are known to deliver exceptional performance and are generally developed for meeting the demands:
Energy-related applications that involve Oil and Gas Drilling
Catering to domestic or industrial needs
In conveyance of fluids intended for critical high temperatures
In general corrosion service applications
In heat transfer process equipment like Boilers, Heat Exchangers
In General Engineering and Process Instrumentation applications
Chemical Composition
|
C, %
|
Mn, %
|
P, %
|
S, %
|
Si, %
|
Cr, %
|
Mo, %
|
|---|---|---|---|---|---|---|
|
0.05-0.15
|
0.30-0.60
|
0.025 max
|
0.025 max
|
0.50-1.00
|
1.00-1.50
|
0.44-0.65
|
Mechanical Properties
|
Tensile Strength, MPa
|
Yield Strength, MPa
|
Elongation, %
|
|
415 min
|
205 min
|
30 min
|
Outside Diameter & Tolerance
|
ASTM A450
|
Hot rolled
|
Outside Diameter, mm
|
Tolerance, mm
|
|---|---|---|---|
|
OD≤101.6
|
+0.4/-0.8
|
||
|
101.6＜OD≤190.5
|
+0.4/-1.2
|
||
|
190.5＜OD≤228.6
|
+0.4/-1.6
|
||
|
Cold Drawn
|
Outside Diameter, mm
|
Tolerance, mm
|
|
|
OD＜25.4
|
±0.10
|
||
|
25.4≤OD≤38.1
|
±0.15
|
||
|
38.1＜OD＜50.8
|
±0.20
|
||
|
50.8≤OD＜63.5
|
±0.25
|
||
|
63.5≤OD＜76.2
|
±0.30
|
||
|
76.2≤OD≤101.6
|
±0.38
|
||
|
101.6＜OD≤190.5
|
+0.38/-0.64
|
||
|
190.5＜OD≤228.6
|
+0.38/-1.14
|
||
|
ASTM A530 & ASTM A335
|
NPS
|
Outside Diameter, inch
|
Tolerance, mm
|
|
1/8≤OD≤1-1/2
|
±0.40
|
||
|
1-1/2＜OD≤4
|
±0.79
|
||
|
4＜OD≤8
|
+1.59/-0.79
|
||
|
8＜OD≤12
|
+2.38/-0.79
|
||
|
OD>12
|
±1%
|
Wall thickness & Tolerance
|
ASTM A450
|
Hot rolled
|
Outside Diameter, mm
|
Tolerance, %
|
|---|---|---|---|
|
OD≤101.6, WT≤2.4 |
+40/-0
|
||
|
OD≤101.6, 2.4＜WT≤3.8
|
+35/-0
|
||
|
OD≤101.6, 3.8＜WT≤4.6
|
+33/-0
|
||
|
OD≤101.6, WT>4.6
|
+28/-0
|
||
|
OD>101.6, 2.4＜WT≤3.8
|
+35/-0
|
||
|
OD>101.6, 3.8＜WT≤4.6
|
+33/-0
|
||
|
OD>101.6, WT>4.6
|
+28/-0
|
||
|
Cold Drawn
|
Outside Diameter, mm
|
Tolerance, %
|
|
|
OD≤38.1
|
+20/-0
|
||
|
OD>38.1
|
+22/-0
|
||
|
ASTM A530
|
NPS
|
Outside Diameter, inch
|
Tolerance, %
|
|
1/8≤OD≤2-1/2
|
+20.0/-12.5
|
||
|
3≤OD≤18, WT/OD≤5%
|
+22.5/-12.5
|
||
|
3≤OD≤18, WT/OD>5%
|
+15.0/-12.5
|
||
|
OD≥20, WT/OD≤5%
|
+22.5/-12.5
|
||
|
OD≥20, WT/OD>5%
|
+15.0/-12.5
|
Length: 5800mm; 6000mm; 6096mm; 11800mm; 12000mm; and so on.
Max length: 16000mm
Keyword: High Pressure Steel Pipe, Boiler Steel Pipe, ASME SA335, P11, ASTM A335
| Grade | UNS | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
|---|---|---|---|---|---|---|---|---|
| P1 | K11522 | 0.10~0.20 | 0.30~0.80 | 0.025 | 0.025 | 0.10~0.50 | - | 0.44~0.65 |
| P2 | K11547 | 0.10~0.20 | 0.30~0.61 | 0.025 | 0.025 | 0.10~0.30 | 0.50~0.81 | 0.44~0.65 |
| P5 | K41545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 4.00~6.00 | 0.44~0.65 |
| P5b | K51545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.00~2.00 | 4.00~6.00 | 0.44~0.65 |
| P5c | K41245 | 0.12 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 4.00~6.00 | 0.44~0.65 |
| P9 | S50400 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50~1.00 | 8.00~10.00 | 0.44~0.65 |
| P11 | K11597 | 0.05~0.15 | 0.30~0.61 | 0.025 | 0.025 | 0.50~1.00 | 1.00~1.50 | 0.44~0.65 |
| P12 | K11562 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 0.80~1.25 | 0.44~0.65 |
| P15 | K11578 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.15~1.65 | - | 0.44~0.65 |
| P21 | K31545 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 2.65~3.35 | 0.80~1.60 |
| P22 | K21590 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 1.90~2.60 | 0.87~1.13 |
| P91 | K91560 | 0.08~0.12 | 0.30~0.60 | 0.020 | 0.010 | 0.20~0.50 | 8.00~9.50 | 0.85~1.05 |
| P92 | K92460 | 0.07~0.13 | 0.30~0.60 | 0.020 | 0.010 | 0.50 | 8.50~9.50 | 0.30~0.60 |
Note: (S)A335 P91 other chemical composition are : V 0.18~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.06~0.10
(S)A335 P92 other chemical composition are : V 0.15~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.04~0.09; W 1.5~2.00 ; B 0.001~0.006
