SA299 Gr.B Steel Plate

Executive Standard: SA299 Gr. B steel plates comply with the ASME standard, specifically ASTM A299/A299M.

2026-08-26
ASTM SA299 Gr.A and SA299 Gr.B steel plates

SA299 is a carbon-manganese-silicon steel plate designed for pressure vessels—often referred to as "gas drum steel" under US standards.

2026-08-19
SA299 Gr. A Steel Plate for Boilers and Pressu

ntroduction to SA299 Gr.A Steel Plate:
SA299 Gr.A is a steel plate grade designated for boilers and pressure vessels under American standards.

2026-08-11
What is the difference between A285 Gr. C and

A285 Gr.C and SA285 Gr.C steel plates represent the same grade, though they are governed by different standards.

2026-08-04
What material is SA283 Gr.B?

SA283 Gr.B is a low-to-medium strength carbon structural steel plate conforming to the American Society of Mechanical Engineers (ASME) standard.

2026-07-31

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HII Boiler Steel Plate Chemical Composition, HII Steel Mechnical Properties

DIN HII steel is ideally suited for elevated temperature service, is commonly found in the oil & gas, petrochemical and chemical industry. This European standard grade steel has replaced the BS1501 and DIN17155 specification.

HII Boiler Steel Plate Size:

Thickness: 8mm~700mm

Width: 1500mm~4020mm

Length: 6000mm~27000mm

HII Boiler Steel Plate

HII Steel Chemical Composition:

Grade

C. %

Mn. %

S. max

Ti. max

Si.

P. max

AL.

Cr.

Mo.

Ni.

HII

≤0.20

0.80-1.40

0.015

≤0.012

≤0.30

≤0.020

0.03

≤0.40

0.025

≤ 0.020

≤0.30

≤0.08

≤0.30

≤0.02

HII Steel Mechnical Properties:

Grade	Type	Thickness mm	Yield strength Mpa(min)	Tensile Strength MPa	Elongation % (min)	Impact Energy (KVJ) (min)
Grade	Type	Thickness mm	Yield strength Mpa(min)	Tensile Strength MPa	Elongation % (min)	-20°	0°	+20
HII	Normalized	≤16 16>to≤40 40>to≤60 60>to≤100 100>to≤150 150>to≤250	265	410-530	22	27	34	40
			255	410-530	22	27	34	40
			245	410-530	22	27	34	40
			215	410-530	22	27	34	40
			200	400-530	22	27	34	40
			185	390-530	22	27	34	40

Supply capacity: 2000MT/Month

Payment term: 30%TT Deposit , 70%TT OR LC

Package: Standard seaworthy package

HII Boiler Steel Plate Finished: Cutting, Painting, Ball blast, Pretreatment, Q+N.

HII Boiler Steel Plate Main Application:

Used for petrol, chemical, power station, boiler industry, etc. Making reactor, heat exchanger, separator, spherical tank, oil or gas tank, pressure vessel for nuclear reaction, high pressure water pipe, spiral case, and so on.

HII Boiler Steel Plate Tests:

HIC, SSC, SPWHT, Macrostructure, detection of defects, Hardness and DWTT test for pipelines steel plates are also available.

Delivery States:

Heat treatment facilities for hot-rolled, controlled rolling, normalizing, annealing, tempering, quenching, normalizing plus tempering, quenching and tempering, and other delivery states are available as customers’ requirement.

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