ASTM A106 Gr B CrossASTM A234 · ASME B16.9 · Manufacturer, trader & exporter, India
SA-106 Gr B · Seamless carbon steel pipe
An ASTM A106 Gr B cross is a four-way fitting with branches at 90°, for use with ASTM A106 Gr B pipe. ASTM A106 Gr B itself is a pipe or plate specification, so the matching cross is made to ASTM A234 WPB (buttweld) · ASTM A105 (forged) — which is what we supply for A106 B lines. Crosses join four pipes in one fitting. They are used less than tees because of stress concentration, but save space in fire-water and utility systems.
- ASTM A234
- ASME B16.9
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an ASTM A106 Gr B Cross?
- What it is
- A four-way fitting with branches at 90°
- Material
- ASTM A234 WPB (buttweld) · ASTM A105 (forged)
- Dimensions
- ASME B16.9 · B16.11
- Grade
- ASTM A106 Gr B
- Best at
- High-temperature process and steam piping in refineries and power plants
ASTM A106 Gr B Cross Specification
| Product | ASTM A106 Gr B Cross |
|---|---|
| Material standard | ASTM A234 WPB (buttweld) · ASTM A105 (forged) |
| Dimensional standard | ASME B16.9 · B16.11 |
| Sizes | Buttweld ½" – 48" · forged ⅛" – 4" |
| Wall / class | Schedule to match pipe · Class 3000 / 6000 (forged) |
| Ends | Bevelled to ASME B16.25 |
| Testing | Chemical & mechanical per heat · NDT · impact where specified |
| Documents | EN 10204 3.1 or 3.2 on request / as specified in the PO |
When to Choose a Cross
Crosses join four pipes in one fitting. They are used less than tees because of stress concentration, but save space in fire-water and utility systems.
- Equal and reducing
- Buttweld and forged
- Less common than tees
More on choosing: Cross guide.
ASTM A106 Gr B Cross: Why A106 B for crosss
Crosses join four pipes in one fitting. They are used less than tees because of stress concentration, but save space in fire-water and utility systems. In ASTM A106 Gr B, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Carbon and low-alloy fittings suit hydrocarbon, steam and utility lines. ASTM A106 Gr B is picked for high-temperature process and steam piping in refineries and power plants. |
|---|---|
| Typical service | Refineries — Process and steam lines. |
| Welding to carbon steel | Matching carbon or low-alloy filler is used; joints to stainless need ER309L |
| Matching filler | ER70S-6 / E7018 |
ASTM A106 Gr B Cross Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
| Sulphur | As specified |
| Chromium | As specified |
| Copper | As specified |
| Nickel | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A106 Grade B.
ASTM A106 Gr B Cross Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A106 Grade B — condition per order.
Full chemistry, properties and equivalents are on the ASTM A106 Gr B grade page.
Other ASTM A106 Gr B pipe fittings
ASTM A106 Gr B Cross — questions buyers ask
Why are crosses less common than tees?
They concentrate stress at four junctions; most designers use two tees unless space is critical.
Can ASTM A106 Gr B crosss be welded to carbon steel?
Yes — matching carbon or low-alloy filler is used; joints to stainless need ER309L.
Which standard covers ASTM A106 Gr B crosss?
The material is ASTM A234 WPB (buttweld) · ASTM A105 (forged); dimensions follow ASME B16.9 · B16.11. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a ASTM A106 Gr B cross?
The steel price, the size and schedule or class, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 or 3.2 certificates available on request / as specified in the PO; dimensional reports as required. PMI can be arranged depending on product and requirements, as specified in the PO.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026