Flowone is a premier worldwide supplier for all your Chrome Moly Alloy A234 / SA234 Buttweld Fittings needs.
Our Chrome Alloy Buttweld Fittings inventory is unsurpassed and is considered one of the most extensive chrome inventories in the world!
Turnarounds or outages, planned retrofits or emergency situations, grassroots projects worldwide; Flowone has the experienced staff to assist you on all of your specialty alloy requirements, no matter how detailed the specification, no matter how difficult the situation.
New industry requirements, not an issue. We work closely with agencies like EPRI along with our utility and refining clients to be on the cutting edge of new industry requirements that affect your high energy/high temperature piping systems.
Our inventory is evolving to meet the new specifications that prevent current issues as creep cracking and hardness problems.
Buttweld(BW) Seamless and Welded :
90° LR Elbows / 90° SR Elbows / 90° Reducing Elbows / 45° Elbows / Tees / Reducing Tees / Concentric Reducers /
Eccentric Reducers / Caps / Stud Ends / Crosses / Reducing Crosses / 180° LR Return Bends / 180° SR Return Bends /
Laterals / Weldolets / Stud Ends / Swage Nipples / Nipples / Couplings / Weld Rings & Saddles
Pressure Fittings :
90° Elbows / 45° Elbows / Street Elbows / Tees / Corsses / Couplings / Reducers / inserts / Caps / Unions
Laterals, Bushings and Plugs & Pressure Fittings
Pressures : 2000LB / 3000LB / 6000LB / 9000LB
| Trade Name | Seamless Grade | Welded Grade | Classes | Buttweld Fitting |
|---|---|---|---|---|
| 1 1/4 Chrome | WP11 | WP11W | 1, 2 and 3 | A234 / SA234 |
| 2 1/4 Chrome | WP22 | WP22W | 1 and 3 | A234 / SA234 |
| 5 Chrome | WP5 | WP5W | 1 and 3 | A234 / SA234 |
| 9 Chrome | WP9 | WP9W | 1 and 3 | A234 / SA234 |
| P91 | WP91 | WP91W | ——- | A234 / SA234 |
Work Scope
This specification covers alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97.
These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures.
Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M.
Review of Procurement Requirements:
It is the purchaser’s responsibility to specify in the purchase order all ordering information necessary to purchase the needed material. Examples of such information include but are not limited to the following:
- Quantity
- Description of fitting and nominal dimensions (standard or special)
- Steel composition by grade and class designation
- Construction, seamless or welded (unless seamless or welded construction is specified by the purchaser, either may be furnished at the option of the supplier)
- Specification number (including the year/date of issue)
- Choice of testing track from the options listed in Test Methods A1058 when material is ordered to an M suffix (SI units) product standard. If the choice of test track is not specified in the order, then the default ASTM track shall be used as noted in Test Methods A1058.
- Supplementary requirements, and
- Additional requirements.
| Trade Name | Grade | UNS# | Forged Fittings |
|---|---|---|---|
| 1 1/4 Chrome | F11 Class 1 | K11597 | A182 / SA182 |
| 1 1/4 Chrome | F11 Class 2 | K11572 | A182 / SA182 |
| 1 1/4 Chrome | F11 Class 3 | K11572 | A182 / SA182 |
| 2 1/4 Chrome | F22 Class 1 | K21590 | A182 / SA182 |
| 2 1/4 Chrome | F22 Class 3 | K21590 | A182 / SA182 |
| 5 Chrome | F5 | K41545 | A182 / SA182 |
| 9 Chrome | F9 | K90941 | A182 / SA182 |
| F91 | F91 | K90901 | A182 / SA182 |
| F92 | F92 | K92460 | A182 / SA182 |
Work Scope
This specification covers forged low alloy fittings for use in pressure systems manufactured to specified dimensions or industry standard dimensional specifications.
For bars and products machined directly from bar refer to Specification A/SA739 for the similar grades available in this specification. Products made to this specification are limited to a maximum weight of 10 000 lb [4540 kg]. For larger products and products for other applications, refer to Specification A/SA336 / A/SA336M for the similar low alloy grades available in this specification.
Several grades of low alloy steels are included in this specification. Selection will depend upon design and service conditions.
Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
Review of Procurement Requirements:
It is the purchaser’s responsibility to specify in the purchase order all ordering information necessary to purchase the needed material. In addition to the ordering information guidelines in Specifications A/SA961/A/SA961M, orders should include the following information:
- Additional requirements, and
- Description of fitting and nominal dimensions (standard or special)
- Requirement, if any, that manufacturer shall submit drawings for approval showing the shape of the rough forging before machining and the material.
