SA529 GR 50 Steel Plate for Sale | RFQ Supply

ASME SA529 / ASTM A529 Grade 50 is a high-strength carbon-manganese structural steel grade under ASTM A529/A529M; ASME SA529. This specification page covers grade identity, chemistry, mechanical requirements, related grades, and RFQ practice. Accept material against the ordered edition and the mill test certificate.

Grade Identity and Delivery Condition

ASME SA529 / ASTM A529 Grade 50 is supplied for projects that name this designation on the purchase order or calculation sheet. Standard delivery condition is As-rolled. Gangsteel supplies export plate and related products with EN 10204 documentation. Do not accept an alternate heat-treatment route unless a written concession changes the specification requirement.

Chemical Composition - Heat Analysis (ASME SA529 / ASTM A529 Grade 50)

Heat analysis for Grade 50 per A529/A529M. Cu min 0.20 only when copper steel is specified.

Element / rule	Requirement
C, max	0.27
Mn, max	1.35
P, max	0.04
S, max	0.05
Si, max	0.40
Cu, min (when specified)	0.20

Mechanical Properties (ASME SA529 / ASTM A529 Grade 50)

Confirm thickness, specimen orientation, and any supplementary impact, UT, or hardness requirements on the PO.

Property	Requirement
Yield strength, min	50 ksi [345 MPa]
Tensile strength	65-100 ksi [450-690 MPa]
Elongation in 200 mm, min	18%
Elongation in 50 mm, min	21%
Delivery	As-rolled

Related / Near-Equivalent Grades

Near-equivalents are for cross-reference only. They are not automatic code substitutes. Substitution requires engineer approval and matching certificate scope.

System	Grade	Note
ASTM	A529 Grade 55	Higher yield window
ASTM	A572 Grade 50	HSLA Nb/V route - different chemistry
ASTM	A36	Lower strength carbon structural

Frequently Asked Questions

What is ASME SA529 / ASTM A529 Grade 50?

ASME SA529 / ASTM A529 Grade 50 is a high-strength carbon-manganese structural steel under ASTM A529/A529M; ASME SA529. It is ordered when drawings or the calculation sheet name this designation specifically.

What chemical composition applies to ASME SA529 / ASTM A529 Grade 50?

Controlled elements and limits are tabulated above from the governing standard. Always verify the heat analysis on the MTC against the ordered edition.

What mechanical properties should buyers expect for ASME SA529 / ASTM A529 Grade 50?

Tensile, yield, elongation, and related limits are tabulated above. Design allowables must come from the applicable pressure-vessel or structural code, not from a web summary.

What delivery condition is required for ASME SA529 / ASTM A529 Grade 50?

Standard delivery is As-rolled. State it explicitly on the PO. Do not accept an alternate route without a written concession.

How does ASME SA529 / ASTM A529 Grade 50 differ from near-equivalent grades?

Near-equivalents may differ in carbon or alloy bands, tensile class, impact temperature, or heat treatment. Substitution needs engineering approval and matching certificate scope.

How do I RFQ ASME SA529 / ASTM A529 Grade 50 from Gangsteel?

Send ASME SA529 / ASTM A529 Grade 50, thickness x width x length, quantity or tonnage, delivery condition, optional impact/UT/Z tests, EN 10204 3.1 or 3.2, destination, and any dual-mark needs. Gangsteel replies with mill options, lead time, and packing notes.

Ordering and Mill Certificates

State grade ASME SA529 / ASTM A529 Grade 50, dimensions, quantity, delivery condition, optional NDT/PMI, and certificate (EN 10204 3.1 standard; 3.2 when third-party inspection is ordered). Gangsteel supplies export plate and related products with mill test certificates. Contact Gangsteel for stock and mill production RFQs.