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{"title":"STD Gb 3087 Grade 10 Seamless Boiler Tubes Carbon Steel","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/64\/9c\/1fe34ca6fc9ccc9ee0d8d7746839-200x200-1\/std_gb_3087_grade_10_seamless_boiler_tubes_carbon_steel.jpg","attrs":{"Certification":"ISO 9001 ,CE","Place of Origin":"Jiangsu,China","Minimum Order Quantity":"1 PCS","Payment Terms":"L\/C, T\/T, Western Union"}}
{"title":"Sa 179 Astm A179 Seamless Carbon Steel Pipe \/ Tubing For Heat Exchanger","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d8\/27\/aaaaf2fd9bf02ad8a77484cd50ca-200x200-1\/sa_179_astm_a179_seamless_carbon_steel_pipe_2f_tubing_for_heat_exchanger.jpg","attrs":{"Certification":"ISO 9001 ,CE","Place of Origin":"Jiangsu,China","Minimum Order Quantity":"1 PCS","Payment Terms":"L\/C, T\/T, Western Union"}}
{"title":"Metal Beveled End Seamless Carbon Steel Pipe Tube Astm A252 Grade 2","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/df\/ee\/c771ddcd0bc8eeb47517d651f117-200x200-1\/metal_beveled_end_seamless_carbon_steel_pipe_tube_astm_a252_grade_2.jpg","attrs":{"Certification":"ISO 9001 ,CE","Place of Origin":"Jiangsu,China","Minimum Order Quantity":"1 PCS","Payment Terms":"L\/C, T\/T, Western Union"}}
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{"title":"Schedule 40 Seamless Carbon Steel Pipe Asme Api 5l Astm A53 A106 Grade A","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/25\/78\/5dbe9355c39ec47ec05cae38a23f-200x200-1\/schedule_40_seamless_carbon_steel_pipe_asme_api_5l_astm_a53_a106_grade_a.jpg","attrs":{"Certification":"ISO 9001 ,CE","Place of Origin":"Jiangsu,China","Minimum Order Quantity":"1 PCS","Payment Terms":"L\/C, T\/T, Western Union"}}
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{"title":"2" 3" 4 Inch Domestic Seamless Carbon Steel Pipe Api ASTM A106 Grade B","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/a9\/2f\/f103ed2f0563bf0c57ce225bca2d-200x200-1\/2_22_3_22_4_inch_domestic_seamless_carbon_steel_pipe_api_astm_a106_grade_b.jpg","attrs":{"Certification":"ISO 9001 ,CE","Place of Origin":"Jiangsu,China","Minimum Order Quantity":"1 PCS","Payment Terms":"L\/C, T\/T, Western Union"}}
GB 3087——Seamless steel tube for low and medium pressure boilers GB 3087 standard is applicable to the manufacture of high-quality carbon structural steel hot-rolled (extruded, expanded) and cold drawn (rolled) seamless steel tubes for various structural low-pressure and medium-pressure boilers and locomotive boilers.
WORKING CONDITION
GB 3087 grade 10 seamless steel pipe is mainly used for manufacturing heating surface of industrial boiler, with working pressure ≤ 5.9mpa
When GB 3087 grade 10 is used as heating surface pipe, the maximum wall temperature ≤ 480 ℃, and when GB 3087 grade 10 is used as header and steam pipe, the maximum wall temperature ≤ 430 ℃.
GB3087 STEEL PIPE MECHANICAL PERFORMANCE
Standard
Grade
Chemical Composition(%)
C
Si
Mn
P
S
Cr
Cu
Ni
GB3087
10
0.07~0.13
0.17~0.37
0.38~0.65
≤0.030
≤0.030
0.3~0.65
≤0.25
≤0.30
mechanical properties:
Standard
Steel pipe
Wall thickness(mm)
Tensile strength(MPa)
Yield Strength(MPa)
Elongation
GB3087
10
/
335~475
≥195
≥24
ALLOWABLE DEVIATION OF OUTER DIAMETER AND WALL THICKNESS
Type of steel pipe
Outer diameter(mm)
Tolerance
ordinary
advanced
Hot rolled tube
OD
≤159
±10%(min±0.50mm)
±0.75%(min±0.40mm)
>159
±1.0%
±0.90%
WT
≤20
+15.0%(min+0.45mm)
±10%(min±0.30mm)
-12.5% -0.35mm)
>20
±12.5%
±10%
OD≥351
±15%
Cold drawn tube
OD
10~30
±0.40mm
±0.20mm
>30~50
±0.45mm
±0.25mm
>50
±1.0%
±0.75%
WT
1.5~3.0
15%
±10%
-10%
>3.0
12.50%
±10%
-10%
PROCESS PERFORMANCE
(1) Forging and rolling
GB 3087 grade 10 steel has good pressure processability. The initial rolling temperature is 1200-1280 ℃, and the final rolling temperature is 800-850 ℃, which can be cooled by air after rolling (forging).
(2) Cold working
GB 3087 grade 10 steel has excellent plasticity, which can be pulled down, punched, locally upset and expanded in cold state.
(3) Heat treatment
GB 3087 grade 10 seamless steel pipe is generally used in hot rolling state, and cold drawn (rolled) steel pipe is used in heat treatment state. Normalizing heat treatment is often used, and the normalizing temperature is 900-940 ℃.
(4) Welding
The weldability of GB 3087 grade 10 steel is good, and it generally has no hardening tendency. When it is suitable for welding and manufacturing boiler heating surface parts by various welding methods, it usually adopts manual welding or gas shielded welding and other welding methods. E4303 (J422) and e4315 are often used for manual welding. No preheating before welding and no heat treatment after welding.
Test: - Chemical composition verification test - hydrostatictest - Tensile test - Notched impact test - Yield strength test - Ring test - Nondestructive testing
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2018
Total Annual:
15000000-20000000
Employee Number:
100~120
Ecer Certification:
Verified Supplier
Qingdao Teste Metal Products Co., Ltd. is a professional manufacturer with more than 20 years of experience in manufacturing stainless steel and carbon steel establised in 2018. Our location is in Wuxi - the largest stainless-steel processing center in China.
We have our own factory and... Qingdao Teste Metal Products Co., Ltd. is a professional manufacturer with more than 20 years of experience in manufacturing stainless steel and carbon steel establised in 2018. Our location is in Wuxi - the largest stainless-steel processing center in China.
We have our own factory and...