AMS 6350 UNS G41300 AISI 4130 Aircraft Steel Sheet

AMS 6350 covers AISI 4130 (UNS G41300) aircraft-quality steel sheet, strip, and plate. Excellent weldability, formability, and up to 180 ksi tensile strength. Certified Chinese supplier ZYTC Alloy offers 4130 sheet in stock.

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AMS 6350 (UNS G41300) specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate. AISI 4130 is a chromium molybdenum alloy steel being a widely used Aircraft Steel due to its weldability, ease of fabrication and mild hardenability.

The hardenability and weldability of Alloy 4130 are considered equivalent to 8630 (MIL-S-6250) . Alloy 4130 is also vacuum degassed to meet the magnetic particle inspection standards of AMS 2301.

Applications of 4130 Chrome- Moly Aircraft Steel

Automotive
Military / Commercial Aircraft
Machine Tools
Components
Motorsports
Aerospace
Oil and Gas industry

Availability

Alloy 4130 (AISI 4130 / UNS G41300 ) is available in Sheet, Tube, Plates, Rods, Bars (Squares, Rounds, Hexagons, Flats) and Welding Wire. For all stock availability contact Sales.

Specifications

AMS 6345 Sheet / Plate, Normalised
AMS 6346 Bar Hardened & Tempered
AMS 6350 Sheet / Plate
AMS 6351 Sheet / Plate, spheroidised
AMS 6370 Bar
AMS 6348 Bar
AMS 6371 Tube
MIL-S-6758
MIL-S-18729
MIL-T-67366
AISI 4130
ASTM A322
ASTM A331

Chemical Composition
Weight%	C	Mn	P	S	Si	Cr	Ni	Mo	Cu
4130 Sheet/Plate	0.28 - 0.33	0.40 - 0.60	0.025 max	0.025 max	0.20-0.35	0.80-1.10	-	0.15 - 0.25	-

AISI 4130 Typical Mechanical Properties

Condition / Thickness	0.2% Proof Stress (MPa)	Tensile Strength (MPa)	Elongation (%)
Annealed	–	586	–
Normalised	–	–	–
Up to 0.062"	517	655	8
0.062"– 0.125"	517	655	10
0.125"– 0.187"	517	655	12
0.187"– 0.249"	482	620	15
0.249"– 0.749"	482	620	16
0.749"– 1.5"	482	620	18

ZYTC Alloy – Your Trusted Chinese Supplier

Tianjin ZYTC Alloy Technology Co., Ltd. has over 30 years of experience in speciality metals. We supply AMS 6350 AISI 4130 sheet, strip, plate, bar, tube, and forgings to global aerospace, automotive, and industrial customers.

Our capabilities:

Full compliance with AMS 6350, AMS 6345, AMS 6370, MIL‑S‑6758, ASTM A322/A331
Vacuum‑degassed material meeting AMS 2301 cleanliness standards
Complete mill test reports with chemical, mechanical, and physical properties
Value‑added services: cutting, precision machining, heat treatment
ISO‑certified quality systems; exports to over 50 countries

AMS 6350 AISI 4130 is a versatile, proven aircraft‑quality steel offering an excellent balance of strength, weldability, and formability. From aerospace structures to oilfield equipment, it remains a material of choice for demanding applications.

For certified 4130 sheet, strip, or plate, ZYTC Alloy provides reliable supply, technical expertise, and full traceability.

📧 Email: daisy@zytcsteel.com
📲 WhatsApp: +86 17335753350