Union Steel Industry is committed to supplying high-quality alloy steel pipes, stainless steel pipes, nickel alloy tubes, boiler tubes, heat exchanger tubes, and pressure piping materials that comply with international standards.
We are proud to announce that our manufacturing facility has successfully obtained the ASME Certificate for Product Conformity, demonstrating that our products meet the quality requirements and material specifications recognized by the American Society of Mechanical Engineers (ASME).
This certification confirms our capability to manufacture and supply a wide range of ASME-compliant materials for critical industries including:
Oil & Gas
Petrochemical
Power Generation
Nuclear Energy
LNG Projects
Heat Exchangers
Pressure Vessels
Boilers
Chemical Processing Plants
The approved material list covered by our certification is shown below.
Union Steel Industry ASME Approved Material List
The following table has been converted into an editable format from the certificate.
Carbon Steel and Alloy Steel Materials
|
Standard No.
|
Grades
|
Dimension
|
|
ASME SA-556 / ASTM A556
|
Gr.A2, Gr.B2, Gr.C2
|
Ø15.9–31.8 mm, WT 1.1–4 mm
|
|
ASME SA-179 / ASTM A179
|
SA-179, A179
|
Ø12.38–1 in, WT 1.4 mm
|
|
ASME SA-53 / ASTM A53
|
Gr.A, Gr.B
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-106 / ASTM A106
|
Gr.A, Gr.B, Gr.C
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-192 / ASTM A192
|
SA-192, A192
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-209 / ASTM A209
|
Gr.T1, Gr.T1a, Gr.T1b
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-210 / ASTM A210
|
Gr.A1, Gr.C
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-213 / ASTM A213
|
Gr.T2, T11, T12, T22, T23, T91, T92
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-335 / ASTM A335
|
P1, P2, P11, P12, P22, P23, P91, P92
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-333 / ASTM A333
|
Gr.1, Gr.6
|
Ø12–219.1 mm, WT 1–40 mm
|
|
ASME SA-334 / ASTM A334
|
Gr.1, Gr.6
|
Ø12–219.1 mm, WT 1–40 mm
|
Austenitic Stainless Steel Materials
|
Standard No.
|
Grades
|
Dimension
|
|
ASME SA-213 / ASTM A213
|
TP304, TP304L, TP304H, TP316, TP316L, TP316H, TP321, TP310S, TP347H, TP347, TP348H, N08800, N08810, N08200, N08204
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SA-312 / ASTM A312
|
TP304, TP304L, TP304H, TP310S, TP316, TP316L, TP316H, TP321, TP347, TP347H, N08020, N08028, N08810, N08811, N08825
|
Ø25–101.6 mm, WT 1–15 mm
|
Duplex Stainless Steel Materials
|
Standard No.
|
Grades
|
Dimension
|
|
ASME SA-789 / ASTM A789
|
S31500, S31803, S32205, S32750, S32304
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SA-790 / ASTM A790
|
S31500, S31803, S32205, S32750, S32304
|
Ø25–101.6 mm, WT 1–15 mm
|
Stainless Steel Tubing Materials
|
Standard No.
|
Grades
|
Dimension
|
|
ASME SB-161 / ASTM B161
|
N02200, N02201
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-163 / ASTM B163
|
N06600, N06601, N08825, N08800, N08810, N08811
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-165 / ASTM B165
|
N04400
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-167 / ASTM B167
|
N06600, N06601, N06690
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-407 / ASTM B407
|
N08800, N08810, N08811
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-423 / ASTM B423
|
N08825
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-444 / ASTM B444
|
N06625
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-622 / ASTM B622
|
N10276, N06985
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-677 / ASTM B677
|
N08925, N08926
|
Ø25–101.6 mm, WT 1–15 mm
|
|
ASME SB-729 / ASTM B729
|
N08020
|
Ø25–101.6 mm, WT 1–15 mm
|
Key Materials Covered by the Certification
The approved material scope includes:
Carbon Steel
ASTM A53 Gr.B
ASTM A106 Gr.B
ASTM A333 Gr.6
ASTM A192
ASTM A210 Gr.C
Chrome Moly Alloy Steel
ASTM A213 T11
ASTM A213 T22
ASTM A213 T91
ASTM A213 T92
ASTM A335 P11
ASTM A335 P22
ASTM A335 P91
ASTM A335 P92
Austenitic Stainless Steel
TP304 / 304L
TP316 / 316L
TP321
TP347H
TP310S
Duplex Stainless Steel
S31803 (2205)
S32205
S32750 (2507)
S32304
Nickel Alloy Materials
Alloy 600 (N06600)
Alloy 601 (N06601)
Alloy 625 (N06625)
Alloy 800 (N08800)
Alloy 800H (N08810)
Alloy 800HT (N08811)
Alloy 825 (N08825)
Hastelloy C276 (N10276)
Alloy 20 (N08020)
Monel 400 (N04400)
Why ASME Certification Matters
For international EPC projects and industrial end users, ASME-certified products provide:
Higher quality assurance
Full material traceability
Compliance with global engineering standards
Easier project approval
Reduced procurement risk
Improved reliability in critical applications
FAQ
1. What is ASME Certificate for Product Conformity?
It is a certification confirming that products comply with applicable ASME material and manufacturing requirements.
2. Which stainless steel grades are covered?
304, 304L, 316L, 321, 347H, 310S, 2205, and 2507 are included in the approved scope.
3. Does the certification include nickel alloys?
Yes. Materials such as Alloy 600, Alloy 625, Alloy 800H, Alloy 825, Alloy 20, Monel 400, and Hastelloy C276 are covered.
4. Why is ASME certification important for industrial projects?
It helps ensure quality, safety, traceability, and compliance with international engineering standards.
5. Which industries require ASME-certified materials?
Oil & gas, petrochemical, power generation, LNG, chemical processing, and pressure vessel manufacturing.
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