Standard：
China National Standard GB3087、GB5310
American Society of Mechanical Engineers standard ASME SA-106、ASME SA-192M、ASME SA-209M、ASME SA-210M、ASME SA-213M、ASME SA-335M
German Industrial Standard DIN17175
Japanese Industrial Standards JIS G 3461
Uses: used in the manufacture of boiler water wall, economizer, reheater, superheater and steam pipes.
Delivery status: normalizing, normalizing and tempering
Size deviation: pipe wall thickness according to supply and outside GB5310 standard deviation
|
Pipe species |
Pipe size mm |
Allow Deviation |
|
Ordinary Level |
Advanced |
|
Hot-rolled tubes |
OD
|
≤159 |
±1.0%
min：±0.5mm |
±0.75%
min：±0.3mm |
|
＞159 |
±1.0% |
±0.90% |
|
Wall thickness |
＜3.5 |
+15%
-10%
min：+0.48mm,-0.32mm |
±10%
min：±0.2mm |
|
3.5~20 |
+15%
-10% |
±10% |
|
＞20 |
D＜219 |
±10% |
±7.5% |
|
D≥219 |
+12.5%
-10.0% |
±10% |
Pipe wall thickness according to supply and outside GB3087 standard deviation
|
Pipe species |
Pipe size mm |
Allow Deviation |
|
Ordinary Level |
Advanced |
|
Hot-rolled tubes |
OD
|
≤159 |
±1.0%(min±0.50mm) |
±0.75%(min±0.40mm) |
|
＞159 |
±1.0% |
±0.90% |
|
Wall thickness mm |
≤20 |
+15.0%(min+0.45mm)
－12.5% －0.35mm) |
±10%(min±0.30mm) |
|
＞20 |
±12.5% |
±10% |
Pipe wall thickness according to other standards of supply and the outer diameter deviation
|
Project |
Standard |
Scope |
Tolerance |
|
OD |
DIN17175 |
D≤100mm |
±0.75%
min：±0.5mm |
|
D＞100~320mm |
±0.9% |
|
ASME SA-192M、ASME SA-209M、ASME SA-210M、ASME SA-213M、
ASME SA-335M 、JIS G 3461 |
D＜100mm |
+0.4~-0.8mm |
|
100mm≤D＜160mm |
+0.4~-1.2mm |
|
160mm≤D＜200mm |
+0.4~-1.8mm |
|
D≥200 mm |
+0.4~-2.4mm |
|
ASME SA-106 |
D＞60.3~114.3mm |
±0.79 mm |
|
D＞114.3~219.1mm |
+1.59~-0.79mm |
|
D＞219.1mm |
+2.38~-0.79mm |
|
Wall thickness |
DIN17175 |
D≤130mm |
S≤2Sn |
+15%~-10% |
|
S＞2Sn~4Sn |
+12.5%~-10% |
|
S＞4Sn |
±9% |
|
130＜D≤320mm |
S≤0.05D |
+17.5%~-12.5% |
|
0.05D＜S≤0.11D |
±12.5% |
|
S＞0.11D |
±10% |
|
ASME SA-192M、ASME SA-209M、ASME SA-210M、ASME SA-213M、
ASME SA-335M 、JIS G 3461 |
S≥4.6mm |
+28~0% |
|
ASME SA-106 |
|
-12.5% |
NOTE: Sn is standard wall
Mechanical Properties
|
Standard |
Trademark |
Tensile strength
MPa |
Yield Strength
（MPa）
Not less than |
Elongation
%
Not less than |
Impact energy
J
Notlessthan |
Hardness
Not more than |
|
GB3087 |
10 |
335~475 |
195 |
24 |
|
|
|
|
|
S＜15mm |
S≥15mm |
|
|
|
|
20 |
410~550 |
245 |
225 |
20 |
|
|
|
DIN17175 |
|
|
S≤16mm |
S＞16mm |
|
|
|
|
St35.8 |
360~480 |
235 |
225 |
25 |
|
|
|
St45.8 |
410~530 |
255 |
245 |
21 |
|
|
|
15Mo3 |
450~600 |
270 |
22 |
|
|
|
GB5310 |
20G |
410~550 |
245 |
24 |
35 |
|
|
20MnG |
≥415 |
240 |
22 |
35 |
|
|
25MnG |
≥485 |
275 |
20 |
35 |
|
|
15MoG |
450~600 |
270 |
22 |
35 |
|
|
20MoG |
415 |
220 |
22 |
35 |
|
|
12CrMoG |
410~560 |
205 |
21 |
35 |
|
|
15CrMoG |
440~640 |
235 |
21 |
35 |
|
|
12Cr2MoG |
450~600 |
280 |
20 |
35 |
|
|
12Cr1MoVG |
470~640 |
255 |
21 |
35 |
|
|
12Cr2MoWVTiB |
540~735 |
345 |
18 |
35 |
|
|
10Cr9Mo1VNb |
≥585 |
415 |
20 |
|
77HRB(137HB) |
|
ASME SA-192M |
SA-192 |
≥325 |
180 |
35 |
|
|
|
ASME SA-106 |
B |
≥415 |
240 |
According to Table |
|
|
|
C |
≥485 |
275 |
|
|
|
ASME SA-210M |
A1 |
≥415 |
255 |
|
79HRB（143HB） |
|
C |
≥485 |
275 |
|
89HRB（179HB） |
|
ASME SA-209M |
T1 |
≥380 |
205 |
|
80HRB（146HB） |
|
T1a |
≥415 |
220 |
|
81HRB（153HB） |
|
ASME SA-213M/ ASME SA-335M |
T2/P2 |
≥415 |
205 |
|
85HRB（163HB） |
|
T11/P11 |
≥415 |
205 |
|
85HRB（163HB） |
|
T12/P12 |
≥415 |
220 |
|
85HRB（163HB） |
|
T22/P22 |
≥415 |
205 |
|
85HRB（163HB） |
|
T23/P23 |
≥510 |
400 |
|
97HRB（220HB） |
|
T24 |
≥585 |
415 |
|
25HRC（250HB） |
|
T91/P91 |
≥585 |
415 |
|
25HRC（250HB） |
|
JIS G 3461 |
STB340 |
≥340 |
175 |
|
|
|
STB410 |
≥410 |
255 |
|
|
Grade and chemical composition（%）
|
Standard |
Trademark |
C |
Si |
Mn |
P
≤ |
S
≤ |
Cr |
Mo |
V |
Ti |
B |
W |
Nb |
|
GB3087 |
10 |
0.07~
0.13 |
0.17
~0.37 |
0.35
~0.65 |
0.025 |
0.020 |
≤0.15 |
|
|
|
|
|
|
|
20 |
017~
0.23 |
0.17
~0.37 |
0.35
~0.65 |
0.025 |
0.020 |
≤0.25 |
|
|
|
|
|
|
|
DIN17175 |
St35.8 |
≤0.17 |
0.10~
0.35 |
0.40~
0.80 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
St45.8 |
≤0.21 |
0.10~
0.35 |
0.40~
1.20 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
15Mo3 |
0.12~
0.20 |
0.10~
0.35 |
0.40~
0.80 |
0.025 |
0.020 |
|
0.25~
0.35 |
|
|
|
|
|
|
GB5310 |
20G |
0.17~
0.24 |
0.17~
0.37 |
0.35~
0.65 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
20MnG |
0.17~
0.24 |
0.17~
0.37 |
0.70~
1.00 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
25MnG |
0.22~
0.30 |
0.17~
0.37 |
0.70~
1.00 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
15MoG |
0.12~
0.20 |
0.17~
0.37 |
0.40~
0.80 |
0.025 |
0.020 |
|
0.25~
0.35 |
|
|
|
|
|
|
20MoG |
0.15~
0.25 |
0.17~
0.37 |
0.40~
0.80 |
0.025 |
0.020 |
|
0.44~
0.65 |
|
|
|
|
|
|
12CrMoG |
0.08~
0.15 |
0.17~
0.37 |
0.40~
0.70 |
0.025 |
0.020 |
0.40~
0.70 |
0.40~
0.55 |
|
|
|
|
|
|
15CrMoG |
0.12~
0.18 |
0.17~
0.37 |
0.40~
0.70 |
0.025 |
0.020 |
0.80~
1.10 |
0.40~
0.55 |
|
|
|
|
|
|
12Cr2MoG |
0.08~
0.15 |
≤0.50 |
0.40~
0.70 |
0.025 |
0.020 |
2.00~
2.50 |
0.90~
1.20 |
|
|
|
|
|
|
12Cr1MoVG |
0.08~
0.15 |
0.17~
0.37 |
0.40~
0.70 |
0.025 |
0.020 |
0.90~
1.20 |
0.25~
0.35 |
0.15~
0.30 |
|
|
|
|
|
12Cr2MoWVTiB |
0.08~
0.15 |
0.45~
0.75 |
0.45~
0.65 |
0.025 |
0.020 |
1.60~
2.10 |
0.50~
0.65 |
0.28~
0.42 |
0.08~
0.18 |
0.002~
0.008 |
0.30~
0.55 |
|
|
10Cr9Mo1VNb |
0.08~
0.12 |
0.20~
0.50 |
0.30~
0.60 |
0.020 |
0.010 |
8.00~
9.50 |
0.85~
1.05 |
0.18~
0.25 |
Ni |
Al |
N |
0.06~
0.10 |
|
≤0.40 |
≤0.04 |
0.030~0.070 |
|
ASME SA-192M |
SA-192 |
0.06~
0.18 |
≤0.25 |
0.27~
0.63 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
ASME SA-106 |
B |
≤0.30 |
≥0.10 |
0.29~
1.06 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
C |
≤0.35 |
≥0.10 |
0.29~
1.06 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
ASME SA-210M |
A1 |
≤0.27 |
≥0.10 |
≤0.93 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
C |
≤0.35 |
≥0.10 |
0.29~
1.06 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
ASME SA-209M |
T1 |
0.10~
0.20 |
0.10~
0.50 |
0.30~
0.80 |
0.025 |
0.020 |
|
0.44~
0.65 |
|
|
|
|
|
|
T1a |
0.15~
0.25 |
0.10~
0.50 |
0.30~
0.80 |
0.025 |
0.020 |
|
0.44~
0.65 |
|
|
|
|
|
|
ASME SA-213M
ASME SA-335M |
T2/P2 |
0.10~
0.20 |
0.10~
0.30 |
0.30~
0.61 |
0.025 |
0.020 |
0.50~
0.81 |
0.44~
0.65 |
|
|
|
|
|
|
T11/P11 |
0.05~
0.15 |
0.50~
1.00 |
0.30~
0.60 |
0.025 |
0.020 |
1.00~
1.50 |
0.44~
0.65 |
|
|
|
|
|
|
T12/P12 |
0.05~
0.15 |
≤0.50 |
0.30~
0.61 |
0.025 |
0.020 |
0.80~
1.25 |
0.44~
0.65 |
|
|
|
|
|
|
T22/P22 |
0.05~
0.15 |
≤0.50 |
0.30~
0.60 |
0.025 |
0.020 |
1.90~
2.60 |
0.87~
1.13 |
|
|
|
|
|
|
T23/P23 |
0.04~
0.10 |
≤0.50 |
0.10~
0.60 |
0.030 |
0.010 |
1.90~
2.60 |
0.05~
0.30 |
0.20~
0.30 |
Al、Ni |
0.0005
~0.006 |
1.45~
1.75 |
0.02~
0.08 |
|
≤0.030 |
|
T24 |
0.05~
0.10 |
0.15~
0.45 |
0.30~
0.70 |
0.020 |
0.010 |
2.20~
2.60 |
0.70~
1.10 |
0.20~
0.30 |
0.06~
0.10 |
0.0015~
0.0020 |
Al |
N |
|
≤0.020 |
≤0.020 |
|
T91/P91 |
0.08~
0.12 |
0.20~
0.50 |
0.30~
0.60 |
0.020 |
0.010 |
8.00~
9.50 |
0.85~
1.05 |
0.18~
0.25 |
Ni |
Al |
N |
0.06~
0.10 |
|
≤0.40 |
≤0.04 |
0.030~0.070 |
|
JIS G 3461 |
STB340 |
≤0.18 |
≤0.35 |
0.30~
0.60 |
0.025 |
0.020 |
|
|
|
|
|
|
|
|
STB410 |
≤0.32 |
≤0.35 |
0.30~
0.80 |
0.025 |
0.020 |
|
|
|
|
|
|
| NOTE: After consultation, but also for other brands of steel | 
Seamless oil pipe
