TOBO STEEL GROUP CHINA
| Temperature Class | -46 deg C to 121 deg C per API 6A |
| Supply Ability | 500 Pieces per Month |
| Standard | API 6A Type 6B and Type 6BX |
| Payment Terms | L/C,T/T,Western Union |
| Application | Wellhead and Christmas Tree Sour Gas Service |
| Packaging Details | Plywood cases or customized |
| Pressure Rating | 2000 psi to 15000 psi |
| Testing | 100% NDT (UT / MT) + hydrostatic test |
| Seal Face | Ring Joint (R / RX / BX) |
| Delivery Time | 7-30 days |
| Product Name | API 6A Wellhead Forged Steel Flange |
| Material Grade | AISI 4130 / ASTM A105 / A182 F22, NACE MR0175 qualified |
| Certification | ISO9001:2015; SGS/BV/ABS/LR/TUV/DNV/API/PED available |
| Brand Name | TOBO |
| Place of Origin | China |
| Model Number | API 6A 6B / 6BX |
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Product Specification
| Temperature Class | -46 deg C to 121 deg C per API 6A | Supply Ability | 500 Pieces per Month |
| Standard | API 6A Type 6B and Type 6BX | Payment Terms | L/C,T/T,Western Union |
| Application | Wellhead and Christmas Tree Sour Gas Service | Packaging Details | Plywood cases or customized |
| Pressure Rating | 2000 psi to 15000 psi | Testing | 100% NDT (UT / MT) + hydrostatic test |
| Seal Face | Ring Joint (R / RX / BX) | Delivery Time | 7-30 days |
| Product Name | API 6A Wellhead Forged Steel Flange | Material Grade | AISI 4130 / ASTM A105 / A182 F22, NACE MR0175 qualified |
| Certification | ISO9001:2015; SGS/BV/ABS/LR/TUV/DNV/API/PED available | Brand Name | TOBO |
| Place of Origin | China | Model Number | API 6A 6B / 6BX |
| High Light | API 6A Wellhead Forged Flanges ，Wellhead Flange Sour Gas Service ，API 6A Forged Steel Flanges | ||
API 6A wellhead forged steel flanges are engineered for extreme oil and gas wellhead equipment conditions, specifically designed to withstand sour gas service environments where resistance to hydrogen sulfide cracking and high pressure is critical. These flanges are manufactured to API 6A standards as Type 6B flanges with R and RX ring joint faces, and Type 6BX flanges with BX faces for maximum pressure ratings.
For well streams containing hydrogen sulfide, materials are qualified to NACE MR0175 / ISO 15156 standards, ensuring each API 6A wellhead forged steel flange can be traced back to a tested heat with confirmed hardness and sulfide stress cracking resistance.
Our API 6A wellhead forged steel flanges are manufactured from premium alloy and carbon steels including AISI 4130 and ASTM A105, with comprehensive non-destructive testing coverage including ultrasonic and magnetic particle testing on every component. Ring joint grooves are precision-machined to API 6A tolerances and verified with ring gages, ensuring reliable performance under full well shut-in pressure conditions.
| Standard | API 6A, Type 6B and Type 6BX |
|---|---|
| Pressure Rating | 2000 psi, 3000 psi, 5000 psi, 10000 psi, 15000 psi |
| Seal Face | Ring Joint: R, RX (6B); BX (6BX) |
| Materials | AISI 4130, ASTM A105, A182 F22; NACE MR0175 option for sour gas service |
| Size Range | 1-13/16" to 11" nominal API sizes |
| Testing | 100% ultrasonic and magnetic particle test, hydrostatic test |
| Temperature Class | -46°C to 121°C per API 6A |
| Documentation | Material certificate, NDT reports, hardness report |
API 6A wellhead forged steel flanges for sour gas service are released only after complete test package approval. Every component undergoes ultrasonic and magnetic particle testing, ring joint groove verification with correct ring gages, and hardness value checks against sour service limits. Each flange ships with comprehensive documentation including material certificates, NDT reports, and hardness reports, with quality records available for review by wellhead manufacturers and operating companies.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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