Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Production Standard | ASTM A105 |
| Material Grade | A105 |
| Product Name | Coupling |
| End Connection | Threaded (NPT/BSPT) or Socket Weld |
| Pressure Rating | 2000#-9000# |
| Size Standard | ASME B16.11, ASME B1.20.1 |
| Size Range | Typically 1/8" to 4" (NPS) |
| Application | Oil & gas pipelines, High-pressure steam systems, Chemical processing plants |
| Brand Name | YUHONG |
| Model Number | A105 Threaded Coupling |
| Certification | ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Production Standard | ASTM A105 | Material Grade | A105 |
| Product Name | Coupling | End Connection | Threaded (NPT/BSPT) or Socket Weld |
| Pressure Rating | 2000#-9000# | Size Standard | ASME B16.11, ASME B1.20.1 |
| Size Range | Typically 1/8" to 4" (NPS) | Application | Oil & gas pipelines, High-pressure steam systems, Chemical processing plants |
| Brand Name | YUHONG | Model Number | A105 Threaded Coupling |
| Certification | ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001 | Place of Origin | China |
| High Light | ASTM A105 Carbon Steel Coupling ，Carbon Steel Socket Welding Fitting ，ASTM A105 Carbon Steel Coupling | ||
A105 Threaded (NPT/BSPT) Coupling ASME B16.11, Carbon Steel Forged fitting for Oil & gas pipelines
What Is ASTM A105 Carbon Steel Coupling?
A105 Threaded Coupling is a forged carbon steel pipe fitting used to join two threaded pipes in a straight line. Made from ASTM A105 material, it features internal NPT threads on both ends and is rated for high-pressure service (2000#–9000# per ASME B16.11). Common in oil & gas, petrochemical, and power industries, it provides a reliable, leak-tight connection without welding.
A105 vs. A105N
| A105 | A105N |
|---|---|---|
Heat Treatment | As-forged | Normalized |
Grain Structure | Coarser | Finer, more uniform |
Impact Resistance | Lower | Better |
Preferred For | General use | Critical applications |
Types of Couplings
Type | Description |
|---|---|
Full Coupling | Threaded both ends |
Half Coupling | Threaded one end, other end for welding |
Reducing Coupling | Connects different pipe sizes |
Pressure Ratings (ASME B16.11)
Class | Maximum Pressure |
|---|---|
2000# | 2,000 psi |
3000# | 3,000 psi |
6000# | 6,000 psi |
9000# | 9,000 psi |
Chemical Composition of A105 Carbon Steel Coupling
C | Mn | P | S | Si |
0.15 | 0.6-1.0 | 0.035 | 0.04 | 0.1 |
Mechanical Properties of ASTM A105 Carbon Steel Coupling
| Property | Value |
|---|---|
| Grade | ASTM A105 / A105N (normalized) |
| Type | Forged carbon steel |
| Carbon Content | ≤ 0.35% |
| Tensile Strength | ≥ 70,000 psi |
| Yield Strength | ≥ 36,000 psi |
| Temperature Range | -20°F to 1000°F |
Tolerance Chart Of ASTM A105 Carbon Steel Coupling
Dimensions | Up to 2" NB | 2 1/2" & 3" NB | |
• Socket Bore | + 0.25 | + 0.38 | |
- 0.00 | - 0.00 | ||
• Body Bore | + 0.00 | + 0.00 | |
- 1.52 | - 3.00 | ||
A | 1/4" NB | ± 0.8 | ± 2.50 |
3/8" TO 3/4" NB | ± 1.6 | ||
1"T0 2"NB | ± 2.0 | ||
Key Applications of A105 Coupling
Oil & gas pipelines
Petrochemical plants
Power generation
High-pressure steam systems
General industrial piping
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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