Stainless Steel 13 8 MO Round Bar, Stainless Steel 13 8 MO Hex Bar in stock

GNEE is a leading manufacturer specializing in 13-8 MO stainless steel bars. With years of industry experience, we offer a full range of round, square, hexagonal, flat, and threaded bars in various heat treatment conditions. We are committed to providing high-quality products that meet international standards and are suitable for a wide range of industries.

13-8Mo stainless steel bars (equivalent to UNS S13800 / DIN 1.4548, conforming to AMS 5629, ASTM, and ASME standards) are a martensitic precipitation-hardening stainless steel with excellent overall performance and high purity. Our 13-8 MO stainless steel round bars, treated with precipitation hardening and aging, possess high hardness, high strength, and good toughness, making them suitable for high-pressure valves, aerospace structural components, and critical components in the nuclear industry.

AMS 5659 15-5PH bright round bar

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Specification

Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI

Grade :13-8 MO (UNS No. S13800) Round Bars 1.4548

Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

Surface : Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline

Chemical Composition of SS 13-8 Mo stainless steel round bar

Grade	C	P	Si	Ni	Al	Fe	Mn	S	Cr	Mo	N
SS 13-8 Mo	0.05 max	0.010 max	0.10 max	7.5-8.5	0.90-1.35	Bal	0.10 max	0.008 max	12.25-13.25	2.0-2.5	0.01 max

PH 13 8 MO stainless steel round bar Physical Properties

Metric	English
7.8 g/cc	0.282 lb/in³

PH 13 8 MO stainless steel round bar Electrical Properties

Electrical Resistivity

0.0001 ohm-cm

at 25°C, 0.0001 at 100°C, 0.0001 at 200°C, 0.00011 at 315°C, 0.00011 at 425°C, 0.00011 at 540°C, 0.00011 at 595°C, in Condtion A

Mechanical Properties of PH 13 8 MO stainless steel round bar

Material	Condition	Ultimate Tensile Strength (ksi)	0.2 % Yield Strength (ksi)	Elongation % in 2D	% Reduction of Area	Rockwell C Hardness
Alloy 13-8 Bar AMS 5629	Cond A	–	–	–	–	363 HB Max
Alloy 13-8 Bar AMS 5629	H950	220	205	10	45	45
Alloy 13-8 Bar AMS 5629	H1000	205	190	10	50	43
Alloy 13-8 Bar AMS 5629	H1025	185	175	11	50	41
Alloy 13-8 Bar AMS 5629	H1050	175	165	12	50	40

We offer: stock sizes of sheet and slab, stock lengths of round bars, custom-length sheet and slab, custom-length round bars, cold forming of sheet and slab and round bars, and any other necessary processing services. For any questions, please click the link below to contact us!

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SS 13-8 Mo stainless steel round bar Manufacturer

All sheets undergo pickling and passivation treatments to form a uniform protective film, are 100% visually inspected to ensure freedom from scratches, pits, and other surface defects, and are verified through mechanical property testing to guarantee processing reliability.

Highest quality GNEE packaging and shipping

We utilize a multi-layer protection and customized securing high-end packaging solution:
The inner layer tightly wraps each bar with waterproof and rust-proof paper.
The middle layer uses PVC/PE shrink film or anti-rust film to enhance moisture resistance and scratch protection.
The outer layer uses solid wood pallets selected according to the diameter and length of the bars.
Each pallet is clearly labeled (material, specifications, batch number, and destination) and includes instructions for applying rust inhibitor or a desiccant pack.

Delivery Time: If the customer has no special requirements on the delivery date, the normal delivery time is 7-15 working days.