Name the exact grade
Record the material specification, grade and any required class or supplementary designation.
Know the material.
Define the performance.
Browse eight material families for butt weld fitting enquiries. Start with the project’s specified grade, then define the fitting geometry and supply requirements.
MATERIAL DIRECTORY
Eight families. Clear starting points.
Explore grade references and enquiry guidance for each material family.
Stainless Steel
304 / 304L · 316 / 316L · 321 · 347
Explore this material →Duplex Steel
UNS S31803 · UNS S32205
Explore this material →Super Duplex
UNS S32750 · UNS S32760
Explore this material →Nickel Alloys
200 · 400 · 600 / 625 · 800 / 825
Explore this material →Carbon Steel
ASTM A234 WPB
Explore this material →Alloy Steel
WP5 · WP9 · WP11 · WP22
Explore this material →Titanium Alloys
Grade 2 · Grade 5 · Grade 7 · Grade 12
Explore this material →Copper Alloys
Copper · Brass · Bronze · Cu-Ni
Explore this material →BUILDING THE SPECIFICATION
A material name is only the beginning
Keep these parts of the requirement together when preparing an enquiry.
Define the fitting
Identify the fitting type, connection sizes, wall thickness and dimensional requirements.
State what must be verified
Include certificates, inspection, testing and marking requirements in the initial scope.
Confirm the exact combination
Availability depends on grade, product form, dimensions and quantity. Confirm the full requirement before relying on a delivery date.
ENQUIRY REFERENCE
Use the full grade designation
This directory groups catalogue references. It is not a grade-equivalence or material-selection chart.
| Family | Catalogue references |
|---|---|
| Stainless Steel | 304 / 304L / 316 / 316L / 321 / 347 |
| Duplex Steel | UNS S31803 / UNS S32205 |
| Super Duplex | UNS S32750 / UNS S32760 |
| Nickel Alloys | 200 / 400 / 600 / 625 / 800 / 825 |
| Carbon Steel | ASTM A234 WPB |
| Alloy Steel | WP5 / WP9 / WP11 / WP22 |
| Titanium Alloys | Grade 2 / Grade 5 / Grade 7 / Grade 12 |
| Copper Alloys | Copper / Brass / Bronze / Cu-Ni |
COMMON QUESTIONS
Before you choose a material family
Can you choose a material from the application name alone?
An application label does not provide enough information for material selection. Use the project’s approved specification and relevant service conditions to identify the required grade.
Are the listed grades interchangeable?
No. These are grade references grouped by family. Substitutions and equivalence need project-specific review and approval.
Does every fitting come in every listed grade?
Availability depends on the fitting geometry, dimensions, manufacturing route and required documentation. Confirm the specific combination through an enquiry.
Where can I find the dimensional requirements?
The Standards section explains how to identify dimensional, material and tolerance requirements. Detailed numerical charts will be added separately.
BUILD YOUR ENQUIRY
Have the material specification ready?
Prepare the grade, fitting type and quantities for your enquiry.
Prepare your enquiry →