L-M-P Boiler Pipe
● Standards:
GB3087-1999, ISO 9329-1, ASTM A106, DIN 17175,JIS G 345, BS 3059 
● Function ��
Mainly applied in manufacturing low-vapor-pressure �� P�Q6Mpa �� superheating steam tube, boiling water tube, big and small fire tube and arch tube of low and medium pressure boiler, locomotive boiler, ordinary industrial boiler and commercial boiler.
● Spec.:
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OD
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Wall Thickness
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Unit(mm)
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2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 7.0-8.0 | 9.0-10.0 | 11.0-12.0 |
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Φ17-Φ18
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Φ19
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Φ20-Φ21
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Φ22
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Φ25
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Φ27-Φ28
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Φ32
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Φ38
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Φ42-Φ45
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Φ48-Φ51
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Φ57
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Φ60-Φ73
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Φ76-Φ89
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Φ102
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Φ108
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● Tolerance of size Tolerance of size
Permissible tolerance of wall thickness: Standard Outside diameter Wall thickness Permissible tolerance of wall thickness DIN17175 ≤130 S≤2��Sn +15%,-10% 2��Sn<S≤4��Sn +12.5%,-10% S>4��Sn ±9% >130 S≤0.05da +15%��-10% 0.05da<S≤0.11da ±12.5% S>0.11da ±10% GB 3087 -- 3-20 +12.5%,-12.5% >20 ±10% ASME SA450 -- 2.4-3.8 +35%,-0% >3.8-4.6 +35%,-0% >4.6 +23%,-0% ASME SA530 -- -- ±12.5%
● Permissible tolerance of outside diameter
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Standard |
Outside diameter |
Permissible tolerance of outside diameter |
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DIN17175 |
≤100 |
±0.75% (min=0.5mm) |
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>100 |
±0.90% |
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GB3087 |
≤159 |
+1.25% -1.0% |
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ASME SA450 |
≤101.6 |
+0.4 -0.8 (mm) |
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>101.6-190.5 |
+0.4 -1.2 (mm) |
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ASME SA530 |
≤48.3 |
+0.4 -0.8 (mm) |
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>48.3-114.3 |
±0.8 (mm) |
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>114.3 |
+1.6 -0.8 (mm) |
● Mechanical Properties:
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Steel grade |
Tensile strength |
Yield point of following steel tube is no less than |
Extensibility |
ballistic work (vertical) No less than |
Hardness no more than |
Standard |
||||
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Rockwell hardness |
Brinell hardness |
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Wall thickness |
Wall thickness |
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��15mm |
≥15mm |
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St35.8 |
360-480 |
235 |
225 |
25 |
- |
- |
- |
DIN17175 |
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Sr45.8 |
410-530 |
255 |
245 |
21 |
- |
- |
- |
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15Mo3 |
450-600 |
270 |
22 |
- |
- |
- |
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13CrMo44 |
440-590 |
290 |
22 |
- |
- |
- |
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10CrMo910 |
450-600 |
280 |
20 |
- |
- |
- |
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14MoV63 |
460-610 |
320 |
20 |
55 |
- |
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12Cr1MoV |
470-640 |
255 |
245 |
21 |
41 |
- |
- |
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| ��15mm | ≥15mm | |||||||||
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SA192 |
≥325 |
180 |
35 |
- |
77HRB |
137HB |
ASMESA192 |
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SA106-B |
≥415 |
240 |
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- |
- |
- |
ASMESA106 |
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SA106-C |
≥485 |
275 |
- |
- |
- |
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SA556-C2 |
≥480 |
280 |
- |
- |
ASMESA556 |
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SA210-A1 |
≥415 |
255 |
- |
79HRB��143HB�� |
ASMESA210 |
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SA210-C |
≥485 |
275 |
- |
89HRB(179HB) |
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SA209-T1a |
≥415 |
220 |
- |
81HRB |
153HB |
ASMESA209 |
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SA213-T12 |
≥415 |
205 |
- |
163HB(85HRB) |
ASMESA213 |
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SA213-T22 |
≥415 |
205 |
- |
163HB(85HRB) |
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● Composition(%):
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Standard |
Trademark |
C |
Si |
Mn |
P≤ |
S≤ |
Cr |
Mo |
V |
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GB 3087 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
≤0.15 |
- |
- |
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20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
≤0.25 |
- |
- |
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DIN 17175 |
St35.8 |
≤0.17 |
0.10-0.35 |
0.40-0.80 |
0.030 |
0.030 |
- |
- |
- |
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St45.8 |
≤0.21 |
0.10-0.35 |
0.40-1.20 |
0.030 |
0.030 |
- |
- |
- |
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15Mo3 |
0.12-0.20 |
0.10-0.35 |
0.40-0.80 |
0.030 |
0.030 |
- |
0.25-0.35 |
- |
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13CrMo44 |
0.10-0.18 |
0.10-0.35 |
0.40-0.70 |
0.030 |
0.030 |
0.70-1.10 |
0.45-0.65 |
- |
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10CrMo910 |
0.08-0.15 |
≤0.50 |
0.40-0.70 |
0.030 |
0.030 |
2.00-2.50 |
0.90-1.20 |
- |
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14MoV63 |
0.10-0.18 |
0.10-0.35 |
0.40-0.70 |
0.030 |
0.030 |
0.30-0.60 |
0.50-0.70 |
0.22-0.32 |
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12Cr1MoV |
0.08-0.15 |
0.17-0.37 |
0.40-0.70 |
0.030 |
0.030 |
0.90-1.20 |
0.25-0.35 |
0.15-0.30 |
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|
ASME |
0.08-0.15 |
0.45-0.75 |
0.45-0.65 |
0.030 |
0.030 |
1.60-2.10 |
0.50-0.65 |
0.28-0.42 |
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ASME SA192 |
SA192 |
0.06-0.18 |
≤0.25 |
0.27-0.63 |
0.035 |
0.035 |
- |
- |
- |
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ASME SA106 |
SA106-B |
≤0.30 |
≥0.10 |
0.29-1.06 |
0.035 |
0.035 |
- |
- |
- |
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SA106-C |
≤0.35 |
≥0.10 |
0.29-1.06 |
0.035 |
0.035 |
- |
- |
- |
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ASME SA556 |
SA556-C2 |
≤0.30 |
≥0.10 |
0.29-1.06 |
0.035 |
0.035 |
- |
- |
- |
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ASME SA209 |
SA209-T1a |
0.15-0.25 |
0.10-0.50 |
0.30-0.80 |
0.025 |
0.025 |
- |
0.44-0.65 |
- |
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ASME SA210 |
SA210-A1 |
≤0.27 |
≥0.10 |
≤0.93 |
0.035 |
0.035 |
- |
- |
- |
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SA210-C2 |
≤0.35 |
≥0.10 |
0.29-1.06 |
0.035 |
0.035 |
- |
- |
- |
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ASME SA213 |
SA213-T12 |
0.05-0.15 |
≤0.50 |
0.30-0.61 |
0.025 |
0.025 |
0.80-1.25 |
0.44-0.65 |
- |
|
SA213-T22 |
0.05-0.15 |
≤0.50 |
0.30-0.60 |
0.025 |
0.025 |
1.90-2.60 |
0.87-1.13 |
- |
