ASTM A514 GR J Quenched and Tempered Steel Plate supplier

 

ASTM A514 GR J Quenched and Tempered Steel Plate

 

If you're looking for a steel plate with very high strength and good toughness in thin sizes, ASTM A514 GR J quenched and tempered steel plate is a good option. It's designed for jobs where you need light weight but strong material, like in pressure vessels or structural parts.

This steel does well in welding and shaping. At Gangsteel, we produce and export quality ASTM A514 GR J plates. We heat them to high temps, cool fast to harden, then temper to add toughness. Our plates follow international rules and are tested for your projects.

 

What is ASTM A514 GR J Steel Plate?

ASTM A514 GR J is an alloy steel plate that's quenched and tempered for extra strength. It's part of the A514 group, with metals like nickel and molybdenum to make it tough.

It's best for thin plates up to 1.25 inches. Gangsteel makes these plates easy to use in designs for high-pressure equipment or welded structures.

 

ASTM A514 GR J Specification

 

The ASTM A514 standard covers strong steel plates for welding in tough spots. Grade J is for thin plates, with high yield strength.

At Gangsteel, our plates meet ASTM A514/A514M fully. This includes heat treatment and tests. We can add impact tests if needed.

 

Supply Specifications

Gangsteel has flexible sizes for ASTM A514 GR J plates to fit your work. We have standard and custom options.

Specification	Range
Thickness	6mm to 300mm
Width	1500mm to 4050mm
Length	3000mm to 15000mm
Surface	Quenched and tempered
Processing	Cutting, beveling, milling available

We can change for your needs.

 

Chemical Composition

The elements in ASTM A514 GR J give it high strength. We check during melting (ladle) and on finished plate (product). Small changes are allowed.

Here's the table:

Element	Ladle Analysis (%)	Product Analysis (%)
Carbon (C)	0.12-0.21	0.10-0.23
Manganese (Mn)	0.45-0.70	0.41-0.74
Phosphorus (P)	0.035 max	0.043 max
Sulfur (S)	0.035 max	0.043 max
Silicon (Si)	0.20-0.35	0.15-0.40
Nickel (Ni)	1.20-1.50	1.15-1.55
Molybdenum (Mo)	0.45-0.60	0.42-0.63
Boron (B)	0.001-0.005	0.0005-0.0055

This mix makes it strong and weldable.

 

Mechanical Properties

ASTM A514 GR J has strong features for hard work. It includes yield strength, tensile strength, elongation, hardness, and impact in cold (Charpy).

Our plates are good for pressure and stress.

Thickness (inches)	Yield Strength (min, ksi/MPa)	Tensile Strength (ksi/MPa)	Elongation (min, % in 2")	Hardness (Brinell, HBW)	Charpy V-Notch Impact (min, ft-lb at -20°F)
Up to 1.25	100 / 690	110-130 / 760-895	18	235-293	20 (supplemental)

For thicker, yield may be lower.

 

Applications of A514 Grade J Steel Plate

Gangsteel's ASTM A514 GR J plate is used in places needing high strength in thin material. It's for pressure vessels and tanks that hold high pressure.

It's also in structural parts for machines and buildings. We've supplied GR J for global projects in energy and engineering.

 

Equivalent Grades for ASTM A514 Grade J

ASTM A514 Grade J matches other steels in strength and use. Only direct equals are listed, with similar mix and properties.

The table has main countries:

Country/Region	Standard	Equivalent Grade	Key Matching Properties
USA	ASTM A514	Grade J	Baseline: Q&T alloy, 100 ksi yield up to 1.25", good weld, for pressure.
Europe (General)	EN 10149-2	S700MC	Thermo-rolled high-strength, 700 MPa yield, tensile 750-950 MPa, elongation 12%.
Germany	SEW 092	QStE690TM	High-yield welded, 690 MPa yield, good formability.
France	NFA 36-231	E690D	High-strength structural, 690 MPa yield, impact -20°C.
Italy	UNI EN 10149-2	S700MC	Matches EN, fine-grain, tensile 750-950 MPa.
UK	BS EN 10149-2	S700MC	Per EN, 700 MPa yield, for cold forming.
Japan	JIS G3113	SAPH590	Structural auto steel, but for high strength 590 MPa yield.
China	GB/T 16270	Q690D	Low-alloy Q&T, 690 MPa yield, -20°C impact.
Australia/New Zealand	AS/NZS 3678	Grade 700	Structural Q&T, 700 MPa yield, tensile 790-930 MPa.
Russia	GOST 19281	14G2AFD	Low-alloy cold, 590-690 MPa yield, impact -60°C.
India	IS 2062	E690	High-strength Q&T, 690 MPa yield, elongation 14%.
Sweden	SS EN 10149-2	S700MC	Matches EN, high yield with formability.
Canada	CSA G40.21	700QT	Quenched/tempered, 700 MPa yield, tough for structures.

Check for your job.

 

Delivery Status

Gangsteel's ASTM A514 GR J plates come quenched and tempered. They're ready for use with top strength.

We pack safe and give certs. If you need normalized, ask, but Q&T is normal.

 

Gangsteel Supply Range and Services

Gangsteel offers wide range for ASTM A514 GR J: 6mm-300mm thick, 1500-4050mm wide, 3000-15000mm long. Custom ok.

We do tests like ultrasonic and impact, plus cut or bevel. Ship worldwide quick. Team advises—contact us.

 

FAQ

What is ASTM A514 GR J steel?

It's a high-strength alloy plate, quenched and tempered for welded parts.

What are uses for A514 Grade J?

Pressure vessels, tanks, structural beams in high-stress spots.

How does Grade J differ from Grade H?

Grade J has more nickel for better toughness in thin plates.

Is A514 GR J weldable?

Yes, but preheat to avoid cracks, use low-hydrogen fillers.

What is yield strength of A514 Grade J

?100 ksi min for up to 1.25 inches.

What equivalents for A514 GR J?

Like S700MC in Europe or Q690D in China—see table.

What thickness for Grade J?

Standard up to 1.25 inches for full strength, but we do thicker.

What hardness for A514 GR J?

235-293 Brinell, resists wear.

Does it work in cold?

Yes, good impact at low temps.

How to machine A514 GR J?

Use carbide tools, slow speeds, heavy feeds.

What certs from Gangsteel?

Mill test reports with chem and mech data.

Is it rust resistant?

Some, but use coating for outside.

How to buy from Gangsteel?

Send specs for quote, we ship fast.

What is carbon equivalent for GR J?

Low, for good weldability, calculate from chem.

Can I get custom tests?

Yes, like HIC or Z-test.

 

Related ASTM A514 Steel Plates

See Gangsteel's A514 line for other options. Each for specific uses:

• ASTM A514/A514M steel plate – Base for quenched alloys in heavy work.
• astm a514 grade J – Thin high-strength for pressure.
• astm a514 grade f – Cold tough for construction.
• astm a514 grade q – Thick for bridges.
• astm a514 grade k – Balanced for supports.
• astm a514 grade m – Durable for farms and roads.
• astm a514 grade p – Lift strong up to 4 inches.
• astm a514 grade a – Basic for general.
• astm a514 grade b – Impact for mining.
• astm a514 grade c – Versatile welded.
• astm a514 grade e – Low temp for cold.
• astm a514 grade h – Heavy for vehicles.
• astm a514 grade r – For repairs.
• astm a514 grade s – High yield beams.
• astm a514 grade t – Extreme for offshore.

Let Gangsteel help find the right one.