High-rise building steel

High-rise building steel

Steel for high-rise buildings

Structural steel for skyscrapers

High-strength steel for tall buildings

Steel frame construction materials

Descripción del producto:

Nuestra high-rise building steel products are specially designed to meet the demanding requirements of modern skyscraper construction. We offer a full range of structural steel for high-rise buildings, featuring high-strength, fire-resistanty corrosion-resistant properties. Whether you need customized steel beams and columns or cost-effective steel solutions for tall structures, our premium materials ensure safety, durability, and outstanding performance for your project. Partner with us for reliable steel for high-rise building construction and bring your architectural vision to life.

Características principales:

Best steel materials for high-rise building construction

High-rise building structural steel supplier

High-strength low-alloy steel for skyscrapers

Welded steel structures for high-rise buildings

Fire-resistant steel for tall building construction

Cost-effective steel solutions for skyscrapers

Premium quality steel for modern high-rise projects

Steel beams and columns for high-rise construction

Corrosion-resistant steel for high-rise structures

Customized steel fabrication for high-rise buildings

Steel grade and dimension

Composición química

Table 1 Chemical composition requirements

Grado	Quality Grade	Chemical Composition / %
		Cb	Si	Mnb	Pc	Sd	Vb	Nbb	Tib	Alsa	Cr	Cu	Ni	Mo
		≤			≤					≥	≤
Q235GJ	B、C	0.20	0.35	0.60  ~1.50	0.025	0.015	–	–	–	0.015	0.30	0.30	0.30	0.08
	D、E	0.18			0.020	0.010
Q345GJ	B、C	0.20	0.55	≤ 1.60	0.025	0.015	0.15	0.070	0.035				0.30	0.20
	D、E	0.18			0.020	0.010
Q390GJ	B、C	0.20		≤ 1.70	0.025	0.015	0.20		0.030				0.70	0.50
	D、E	0.18			0.020	0.010
Q420GJ	B、C	0.20			0.025	0.015					0.80		1.00	0.50
	D、E	0.18			0.020	0.010
Q460GJ	B、C	0.20			0.025	0.015		0.110			1.20	0.50	1.20	0.50
	D、E	0.18			0.020	0.010
LY100e	–	0.01	0.1	0.4	0.020	0.015	–	–	–	–	0.3	0.3	0.3	–
LY160e		0.03		0.5
LY225e		0.05		0.6
It is permissible to substitute the total aluminum content (Alt) for the acid-soluble aluminum content (Als) requirement, provided that the total aluminum content shall not be less than 0.02%. When V, Nb, or Ti is added individually in an amount not less than 0.015%, the minimum aluminum content requirement does not apply.When V, Nb, and Ti are added in combination, the total content (V+Nb+Ti) shall not exceed 0.15% for grades Q235GJ and Q345GJ, and shall not exceed 0.22% for grades Q390GJ, Q420GJ, and Q460GJ.For steel plates with through-thickness properties, the phosphorus (P) content shall not exceed 0.020%.For steel plates with through-thickness properties: For Z15 grade, the sulfur (S) content shall be ≤ 0.010%; For Z25 grade, the sulfur (S) content shall be ≤ 0.007%; For Z35 grade, the sulfur (S) content shall be ≤ 0.005%.

 

Table 2 CEV and Pcm

Grado	Delivery Condition a	Carbon Equivalent Value (CEV) / %			Weld Cracking Susceptibility Index (Pcm) / %
		≤ 50	> 50~100	> 100~150	≤ 50	> 50~100	> 100~150
		≤			≤
Q235GJ	WAR、WCR、N	0.34	0.36	0.38	0.24	0.26	0.27
Q345GJ	WAR、WCR、N	0.42	0.44	0.46	0.26	0.29	0.30
	TMCP	0.38	0.40	–	0.24	0.26	–
Q390GJ	WCR、N、NT	0.45	0.47	0.49	0.28	0.30	0.31
	TMCP、TMCP+T	0.40	0.43	–	0.26	0.27	~
Q420GJ	WCR、N、NT	0.48	0.50	0.52	0.30	0.33	0.34
	QT	0.44	0.47	0.49	0.28	0.30	0.31
	TMCP、TMCP+T	0.40	Mutual Negotiation	–	0.26	Mutual Negotiation	–
Q460GJ	WCR、N、NT	0.52	0.54	0.56	0.32	0.34	0.35
	QT	0.45	0.48	0.50	0.28	0.30	0.31
	TMCP、TMCP+T	0.42	Mutual Negotiation	–	0.27	Mutual Negotiation	–
a WAR；WCR；N；NT；TMCP；TMCP+T；QT。

Propiedades mecánicas

Grado

Quality Grade

Tensile Test

Longitudinal Impact Test

Bending Test a

Lower Yield Strength ReL / MPa

Tensile Strength Rm / MPa

Yield-to-Tensile Ratio (ReL/Rm)

Elongation after Fracture A / % ≥

Temperature / ℃

Impact Energy Absorption KV2/J ≥

THK（mm）

6~16

16~50

50~100

100~150

≤ 100

100~150

6~150

≤ 16

> 16

Q235GJ

B

≥ 235

235~345

225~335

215~325

400~510

380~510

≤ 0.80

23

20

47

D=2a

D=3a

C

0

D

-20

E

-40

Q345GJ

B

≥ 345

345~455

335~445

325~435

490~610

470~610

≤ 0.80

22

20

C

0

D

-20

E

-40

Q390GJ

B

≥ 390

390~510

380~500

370~490

510~660

490~640

≤ 0.83

20

20

47

C

0

D

-20

E

-40

Q420GJ

B

≥ 420

420~550

410~540

400~530

530~680

510~660

≤ 0.83

20

20

C

0

D

-20

E

-40

Q460GJ

B

≥ 460

460~600

450~590

440~580

570~720

550~720

≤ 0.83

18

20

C

0

D

-20

E

-40

LY100

–

100±20

–

200~300

–

0.60

50

0

27

–

–

LY160

–

160±20

–

220~320

–

0.76

45

–

–

LY225

–

225±20

–

300~400

–

0.78

40

–

–

where “a” is the specimen thickness

Tamaños de stock disponibles (ejemplos):

14 mm × 3000 mm × 12500 mm

17 mm × 2400 mm × 7000 mm

24 mm × 2200 mm × 6300 mm
(Tamaños personalizados disponibles bajo pedido).

Applications of High-Rise Building Steel

High-rise building steel is essential for the construction of modern skyscrapers and tall structures. It is widely used in:

1. Structural Framework: Steel beams, columns, and frames provide the primary support for tall buildings, ensuring strength and stability.
2. Fire and Corrosion Resistance: Steel is treated to withstand fire and corrosion, making it ideal for environments with high moisture or coastal exposure.
3. Seismic Resistance: Steel’s flexibility and strength make it a key material in earthquake-resistant designs, absorbing energy and reducing vibrations.
4. Facade and Cladding: Steel is used for building facades and decorative cladding, enhancing the aesthetic appeal and durability of high-rise buildings.
5. Flooring and Stairs: Steel floors, staircases, and platforms ensure strong, durable, and safe internal structures.
6. Building Expansion and Renovation: Steel is commonly used in building extensions, providing support for added weight or additional floors.
7. City Skyline Design: Steel shapes the modern skyline, allowing for innovative and unique architectural designs.

With its unmatched strength, fire resistance, and flexibility, high-rise building steel ensures the safety, durability, and aesthetic appeal of modern skyscrapers.

P: ¿Cuáles son los principales productos/servicios de su empresa?

R: Somos fabricantes profesionales de productos de acero al carbono, acero aleado y perfiles. Tenemos la experiencia del negocio de acero por más de 10 años y nuestros productos se exportan a Oriente Medio, Suramérica, Asia sudoriental, África, Asia del sur y del este etc.

P: ¿Puedo visitar su fábrica?

R: Por supuesto, invitamos a clientes de todo el mundo a visitar nuestra fábrica.

P: ¿Cuáles son sus condiciones de pago?

R: 30% T/T depósito y 70% saldo antes del envío.

P: ¿Cuál es su plazo de entrega?

R: Para las existencias, podríamos transportar las mercancías al puerto de carga dentro de los 7 días después de recibir el depósito; Para la producción, por lo general toma alrededor de 15-30 días después de recibir el depósito.

P: ¿Proporcionan muestras? ¿Son gratuitas o de pago?

R: Las muestras están disponibles de forma gratuita, pero el flete de mensajería será cubierto por la cuenta del cliente.

P: ¿Aceptan la inspección de terceros?

R: Sí, aceptamos inspecciones de terceros.

P: ¿Por qué debería comprarles a ustedes y no a otros proveedores?

R: Integrando los recursos superiores de la industria siderúrgica de China, proporcionamos a los clientes productos de acero de alta calidad a precios preferenciales, y podemos garantizar que las mercancías se entregan a los clientes a tiempo.

P: ¿Cómo garantizan la calidad?

A: Siempre una muestra de pre-producción antes de la producción en masa;Siempre 100% inspeccionado antes del envío