Delivering High Quality Stainless Steel and Alloy Piping Products — Pipes, Tubes, Fittings, Flanges and more for Global Industries.
sales@savoypipinginc.com
Delivering High Quality Stainless Steel and Alloy Piping Products — Pipes, Tubes, Fittings, Flanges and more for Global Industries.
sales@savoypipinginc.com
| Choose | When | Watch-outs |
|---|---|---|
| A691 1-1/4CR | EFW alloy route for large OD / project packages | State class + plate spec |
| A335 seamless | Seamless chrome-moly when required | Different product form |
| A691 hub | Sibling Cr grades | Confirm design metal temperature |
ASTM A691 Grade 1-1/4CR Class ____ OD: ____ Wall: ____ Qty: ____ HT/NDE: ____ MTC: 3.1/3.2 Destination: ____
Email sales@savoypipinginc.com with destination and any IBR / NACE / TPI notes.
Savoy Piping Inc. supplies ASME SA691 electric-fusion-welded chrome moly pipe for high-pressure elevated-temperature service — the ASME companion to ASTM A691, widely referenced on boiler and pressure piping packages.
Order SA691 by grade and class. Grade sets the Cr-Mo plate chemistry; class sets heat treatment, radiography and pressure-test combination. Missing the class is one of the most common enquiry delays we see.
Grades: 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91, 92. ASTM hub: ASTM A691.
| ASME SA691 Alloy Steel EFW Pipes Specification | ASTM A691 / ASME SA691 |
| ASME SA691 Alloy Steel EFW Pipes Grades | ASTM A691 / ASME SA691 Grade 1-1/4CR |
| ASME SA691 Alloy Steel EFW Pipes Type | EFW (Electric Fusion Welded Pipes ) |
| ASME SA691 Alloy Steel EFW Pipes Class Designation | CLASS 10, ,11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42, 43 |
| ASME SA691 Alloy Steel EFW Pipes Outer Diameter Size | 16" NB to 100" NB (Nominal Bore Size) |
| ASME SA691 Alloy Steel EFW Pipes Wall Thickness | Schedule 20 to Schedule XXS (Heavier On Request) Up to 75 mm Thickness |
| ASME SA691 Alloy Steel EFW Pipes Length | 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size. |
| ASME SA691 Alloy Steel EFW Pipes Ends | Plain Ends / Beveled Ends / Coupling |
| ASME SA691 Alloy Steel EFW Pipes Delivery Conditions | As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T |
| ASME SA691 Alloy Steel EFW Pipes Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
| ASME SA691 Alloy Steel EFW Pipes Other Testing | NACE MR0175, NACE TM0177, NACE TM0284, Charpy V-Notch Test, Radiograph HIC Examination, XRAY, Ultrasonic EXAMINATION, Liquid Penetrant, Magnetic Particle, HIC Test, SSC Test, SWC, H2 Service, IBR, PWHT Etc. |
| ASME SA691 Alloy Steel EFW Pipes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
| ASME SA691 Alloy Steel EFW Pipes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
| ASME SA691 Alloy Steel EFW Pipess Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| ASME SA691 Alloy Steel EFW Pipes Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 4 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| ASME SA691 Alloy Steel EFW Pipes Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
ASME SA691 is the ASME designation companion to ASTM A691 for electric-fusion-welded carbon and alloy steel pipe fabricated from pressure-vessel-quality plate for high-pressure service at elevated temperatures.
It is commonly specified on boiler-linked and ASME code piping packages where large-diameter EFW chrome moly is required. Product selection must still follow the governing piping code, design metal temperature and approved material class.
For seamless chrome moly in smaller sizes, see ASTM A335 / ASME SA335. For boiler tubes, see ASTM A213 / ASME SA213.
In practice, purchasers often write ASTM A691 / ASME SA691 together for the same grade family. Confirm which designation and documentation package your inspector or EPC requires — especially class, heat treatment and NDE.
| Class | Heat Treatment on Pipe | Radiography, see Section | Pressure Test, see: |
| A691 / SA691 EFW Pipe Class 10 | none | none | none |
| A691 / SA691 EFW Pipe Class 11 | none | 9 | none |
| A691 / SA691 EFW Pipe Class 12 | none | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 13 | none | none | 8.3 |
| A691 / SA691 EFW Pipe Class 20 | stress relieved, see 5.3.1 | none | none |
| A691 / SA691 EFW Pipe Class 21 | stress relieved, see 5.3.1 | 9 | none |
| A691 / SA691 EFW Pipe Class 22 | stress relieved, see 5.3.1 | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 23 | stress relieved, see 5.3.1 | none | 8.3 |
| A691 / SA691 EFW Pipe Class 30 | normalized, see 5.3.2 | none | none |
| A691 / SA691 EFW Pipe Class 31 | normalized, see 5.3.2 | 9 | none |
| A691 / SA691 EFW Pipe Class 32 | normalized, see 5.3.2 | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 33 | normalized, see 5.3.2 | none | 8.3 |
| A691 / SA691 EFW Pipe Class 40 | normalized and tempered, see 5.3.3 | none | none |
| A691 / SA691 EFW Pipe Class 41 | normalized and tempered, see 5.3.3 | 9 | none |
| A691 / SA691 EFW Pipe Class 42 | normalized and tempered, see 5.3.3 | 9 | 8.3 |
| A691 / SA691 EFW Pipe Class 43 | normalized and tempered, see 5.3.3 | none | 8.3 |
| Pipe Grade | Type of Steel | ASTM Specification | HB, max A | |
| Number | Grade | |||
| CM-65 | carbon-molybdenum steel | A 204/ A204M | A | 201 |
| CM-70 | carbon-molybdenum steel | A 204/ A204M | B | 201 |
| CM-75 | carbon-molybdenum steel | A 204/ A204M | C | 201 |
| CMSH-70 | carbon-manganese-silicon steel, normalized | A 537/A 537M | 1 | |
| CMS-75 | carbon-manganese-silicon steel | A 299/A 299M | … | … |
| CMSH-80 | carbon-manganese-silicon steel, quenched and tempered | A 537/A 537M | 2 | |
| 1/2 CR | 1/2 % chromium, 1/2 % molybdenum steel | A 387/ A 387M | 2 | 201 |
| 1CR | 1 % chromium, 1/2 % molybdenum steel | A 387/ A 387M | 12 | 201 |
| 1-1/4 CR | 1-1/4 % chromium, 1/2 % molybdenum steel | A 387/ A 387M | 11 | 201 |
| 2-1/4 CR | 2-1/2 % chromium, 1 % molybdenum steel | A 387/ A 387M | 22 | 201 |
| 3CR | 3 % chromium, 1 % molybdenum steel | A 387/ A 387M | 21 | 201 |
| 5CR | 5 % chromium, 1/2 % molybdenum steel | A 387/ A 387M | 5 | 225 |
| 9CR | 9 % chromium, 1 % molybdenum steel | A 387/ A 387M | 9 | 241 |
| 91 | 9 % chromium, 1 % molybdenum, vanadium-modified steel (CSEF) | A 387/ A 387M | 91 | 241 |
| Pipe Grade | ASTM Specification | Post-Weld Heat-Treat Temperature Range (Strees Relieving), F ( C) | Normalizing Temperature, max unless otherwise noted, F ( C) | Quenching Temperature, max unless otherwise noted, F ( C) | Tempering Temperature, min, F ( C) |
| CM-65 | A204/ A204M | 1100 to 1200 (59 to 650) | 1700 (925) | … | … |
| CM-70 | A204/ A204M | 1100 to 1200 (59 to 650) | 1701 (925) | … | … |
| CM-75 | A204/ A204M | 1100 to 1200 (59 to 650) | 1702 (925) | … | … |
| CMSH-70 | A537/A 537M | 1100 to 1200 (59 to 650) | 1703 (925) | … | … |
| CMS-75 | A 299/A 299M | 1100 to 1200 (59 to 650) | 1704 (925) | … | … |
| CMSH-80 | A537/A 537M | 1100 to 1200 (59 to 650) | A | 1700 (925) | 1100 to 1250 (59 to 675) |
| 1/2 CR | A387 / A387M | 1100 to 1300 (59 to 705) | 180 (1010) | 1700 (925) | 1150 to 1375 (620 to 74) |
| 1CR | A387 / A387M | 1100 to 1350 (59 to 730) | 181 (1010) | 1700 (925) | 1150 to 1375 (620 to 74) |
| 1-1/4 CR | A387 / A387M | 1100 to 1375 (59 to 74) | 182 (1010) | 1700 (925) | 1150 to 1375 (620 to 74) |
| 2-1/4 CR | A387 / A387M | 1200 to 1400 (650 to 760) | 183 (1010) | 1700 (925) | 1250 to1400 (675 to 760) |
| 3CR | A387 / A387M | 1200 to 1400 (650 to 760) | 184 (1010) | 1700 (925) | 1250 to1400 (675 to 760) |
| 5CR | A387 / A387M | 1200 to 1400 (650 to 760) | 185 (1010) | 1700 (925) | 1300 to 1400 (705 to 760) |
| 9CR | A387 / A387M | 1325 to 1375 (715 to 74) | B | … | 1325 to 1375 (715 to 74) |
| 91 | A387 / A387M | 1350 to 1420 (730 to 770) | 1350 to 1420 (730 to 770) | 190 min (1040 min) | 1350 to 1440 (730 to 780) |
B 9CR steel is an air-hardenable steel, at times retaining down to near atmospheric temperature. Good practice is to allow the steel to cool to 15 F or Lower before subjecting the steel to a tempering treatment or post-weld heat treatment.
ASME SA691 1-1/4CR, 2-1/4CR, 3CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe Ready Stock
ASME SA691 is the ASME companion specification to ASTM A691 for electric-fusion-welded carbon and alloy steel pipe made from pressure-vessel-quality plate for high-pressure elevated-temperature service.
Common chrome moly grades include 1-1/4CR, 2-1/4CR, 5CR, 9CR and 91. Always specify the class number with the grade.
Yes. Grade defines chemistry; class defines heat treatment, radiography and pressure-test combination. Ordering by grade alone is incomplete for A691/SA691.
Yes. We support EN 10204 3.1/3.2 MTCs and third-party inspection (SGS, TUV, Lloyd’s, etc.) when specified.
We supply this product for domestic and export projects with MTC (EN 10204 3.1 standard; 3.2 / TPI on request). Include destination, Incoterms and inspection needs on the RFQ.