What is A691 material
A691 material is mainly used for spot welding of carbon steel and alloy steel nominal pipes for high temperature and high pressure applications.
ASTM A691 Equivalent
ASTM A691 Equivalent to A335
A691 material specification
| Grade | Alloy Steel A691 GRADE 1 CR, GRADE 1/2 CR, GRADE 1 1/4 CR, GRADE 2 1/4 CR, GRADE 3 CR, GRADE 5 CR, GRADE 9 CR, GRADE 91, CM 65, CM 70, CM 75 |
| Thickness | 3-12mm |
| End | Plain End, Beveled End, Treaded |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| ASTM A691 Grades |
ASTM A691 Gr 11, ASTM A691 Gr.91, ASTM A691 9cr, ASTM A691 5cr, ASTM A691 1 1/4cr Cl22, ASTM A691m, ASTM A691 Gr.5cr Cl22, ASTM A691 Cm70, ASTM A691 Class 22, ASTM A691 Class 42, ASTM A691-91, ASTM A691 Grade 2.1/4cr, ASTM A691 11/4cr Cl22 |
| Application | Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service |
| Class Designation | Class 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 70, 71, 72, 73 |
| Schedules | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Craft | Cold rolled and Cold drawn |
| Size | 1/2" NB to 36" NB |
| Length | Standard Double & In Cut length also. |
| available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| Specialized in | Large Diameter ASTM A691 Pipe |
| Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
ASTM A691 Chemical composition
Astm a691 pipe sizes
A691 electric welded carbon and alloy steel pipes Factory
