Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Delivery Time | 7DAYS |
| Packaging Details | PLYWOOD CASE,BUNDLE,WOVEN BAG |
| Standard | ASTM A334,ASME SA334 |
| Material | GR.1,3,6,7,8,9,11 |
| Length | 6000MM,6096MM,SRL,DRL |
| OD | 3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2) |
| Brand Name | YUHONG |
| Model Number | ASTM A334 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 7DAYS |
| Packaging Details | PLYWOOD CASE,BUNDLE,WOVEN BAG | Standard | ASTM A334,ASME SA334 |
| Material | GR.1,3,6,7,8,9,11 | Length | 6000MM,6096MM,SRL,DRL |
| OD | 3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2) | Brand Name | YUHONG |
| Model Number | ASTM A334 | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | ASTM A334 GR.6 Boiler Tube ，Low Temperature Service Boiler Tube ，Alloy Steel Boiler Tube | ||
ASTM A334 GR.6 Boiler Tube Carbon and Alloy Steel for Low Temperature Service
ASTM A334 Grade 6 (A334 Gr. 6) is a specification for seamless and welded carbon and alloy steel pipe for low-temperature service. Specifically, this grade is used for the construction of boiler tubes, heat exchangers, condensers, and similar applications, where resistance to low temperatures is crucial.
Material Composition: A334 Gr. 6 primarily consists of carbon steel with small additions of manganese and other alloying elements. The steel is designed for use in low-temperature environments, which makes it resistant to brittle fracture under those conditions.
Temperature Range: This material is designed to perform well at temperatures as low as -50°F (-46°C), with specific mechanical properties maintained at low temperatures.
Mechanical Properties:
Applications: This material is used in the construction of heat exchangers, condensers, and other heat transfer systems for applications in chemical, petrochemical, and energy industries, as well as other sectors requiring low-temperature service.
Welding and Fabrication: A334 Gr. 6 is typically welded using methods that are compatible with carbon and low-alloy steels. Post-weld heat treatment may be required, depending on the application and specific conditions.
Chemical Requirements for ASTM A334 Grade 6 Tubes
| Grade | Mfg. Process | Chemical composition(%) | ||||||
| C | Si | Mn | P | S | Ni | Others | ||
| Grade 1 | S, E, AT | 0.30Max | - | 0.40~1.06 | 0.05Max | 0.60Max | - | (STBL450) |
| Grade 3 | S, E, AT | 0.19Max | 0.18~0.37 | 0.31~0.64 | 0.05Max | 0.050Max | 3.18-3.82 | - |
| Grade 6 | S, E, AT | 0.30Max | 0.10Max | 0.29~1.06 | 0.048Max | 0.058Max | - | - |
| Grade 7 | S, E, AT | 0.19Max | 0.13~0.32 | 0.90Max | 0.04Max | 0.050Max | 2.03~2.57 | (STBL690) |
| Grade 8 | S, E, AT | 0.18Max | 0.13~0.32 | 0.90Max | 0.045Max | 0.045Max | 8.40~9.60 | (Cu 0.75~1.25) |
| Grade 9 | S, E, AT | 0.20Max | - | 0.40~1.06 | 0.045Max | 0.50Max | 1.60~2.24 | - |
Tensile Requirements for ASTM A334 Grade 6 Tubes
| Grade | Tensile Test MPa or N/mm2 | Remaks (Similar to JIS) | |
| Min Yield point | Tensile Strength | ||
| Gr. 1 | 205 | 380Min | Impact Test(J) 2V 18 |
| Gr. 3 | 240 | 450Min | 2V 18 |
| Gr. 6 | 240 | 415Min | 2V 18 |
| Gr. 7 | 240 | 450Min | 2V 18 |
| Gr. 8 | 520 | 690Min | 2V 18 |
| Gr. 9 | 315 | 435Min | 2V 18 |
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 HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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