Carbon Steel Seamless Pipe ASTM A106 Grade B

Carbon Steel Seamless Pipe ASTM A106 Grade B

Chemical composition in%

Standard Requirement:

Carbon (C) Max For Grade A 0.25, For Grade B 0.30, Grade C 0.35
Manganese (Mn): 0.27-0.93, 0.29-1.06
Sulfur (S) Max: ≤ 0.035
Phosphorus (P) : ≤ 0.035
Silicon (Si) Min : ≥0.10
Chrome (Cr): ≤ 0.40
Copper (Cu): ≤ 0.40
Molybdenum (Mo): ≤ 0.15
Nickel (Ni): ≤ 0.40
Vanadium (V): ≤ 0.08

Note: Unless otherwise specified by the purchaser, for each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.65%(1.35% for ASME SA106).

Mechanical Properties

Elongation formula:

In 2 in. [50mm], shall be calculated by: e = 625 000 A^0.2 / U^0.9

For inch-pound Units, e = 1940 A^0.2 / U^0.9

Explanations of e, A, and U, please find here. (Equation same with ASTM A53, API 5L pipe.)

Tensile Strength, min, psi [MPa] Grade A 48,000 [330], Grade B 60,000 [415], Grade C 70,000 [485]

Yield Strength minimum at psi [MPa] Grade A 30,000 [205], B 35,000 [240], C 40,000 [275]

Elongation in 2 in (50mm), minimum percentage%

For all small sizes tested in full section, basic minimum elongation transverse trip tests: Grade A Longitudinal 35, Transverse 25;

B 30, 16.5; C 30, 16.5;

In case standard round 2 inch gage length test sample is used, above values are: Grade A 28, 20; B 22, 12; C 20, 12.

Reference Standard

Test Standard for Carbon Steel Seamless Pipe ASTM A106 Grade B:

a. ASTM A530/ A530M: This is the standard specification for the common requirements of carbon and alloy pipes.

B. E213: The standard for the Ultrasonic Examination test.

c. E309: The standard for the Eddy Current examination test.

d. E381: The standard for the plan of Macroetch test, for steel products such as steel bars, steel billets, blooms, and forging steels.

e. E570: The standard for the test plan for the flux leakage test of ferromagnetic steel pipes and pipeline products.

f. Related ASME Standard:

g. ASME B 36.10M: The standard specification for nominal sizes of welded and seamless steel pipes.

h. Related Military standard:

I. MIL-STD-129: The standard for the markings of shipment and storage.

j. MIL-STD-163: The standard for the storage and shipment of steel forging products.

k. Related federal standard:

l. Fed. Std. No. 123: The standard for the marking and shipments for civil agencies.

m. Fed. Std. No. 183: The standard specification for continuous ID marking for steel products.

n. Surface standard:

o. SSPC-SP 6: The standard specification for surface preparation.

Production Process Of Carbon Steel Seamless Pipe ASTM A106 Grade B

The steel shall be killed steel, with the primary melting process being open-hearth, basic-oxygen, or electric-furnace, possibly combined with separate degassing or refining.

Steel cast in ingots or strand cast is permissible.

For pipe NPS 1-1/2 and under, it shall be permissible to furnish hot finished or cold drawn.

For pipe NPS 2 [DN 50] and over shall be furnished hot finished.

Products Shows

Bare Pipe

Back Painting and Bundle

Water Proof Package

Container Loading