45# hot rolled steel sheet

No. 45 steel is widely used in machinery, when it is not heat treated: HB≤229; heat treatment: normalizing; impact energy: Aku≥39J; high strength, good plasticity and toughness, 45# steel plate after quenching without tempering, the hardness is greater than HRC55 (Up to HRC62) is qualified. After heat treatment and tempering, it can reach HRC42-46, which can not only ensure its good mechanical properties, but also obtain the hardness requirements of the surface.

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Steel Round Bars

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Product Details

Product introduction

The recommended heat treatment system for 45 steel specified in the GB/T699-1999 standard is normalizing at 850°C, quenching at 840°C, and tempering at 600°C. The achieved performance is yield strength ≥355MPa
The GB/T699-1999 standard stipulates that the tensile strength of 45 steel is 600MPa, the yield strength is 355MPa, the elongation rate is 16%, and the reduction of area is 40%.
Application
No. 45 steel is widely used in machinery, when it is not heat treated: HB≤229; heat treatment: normalizing; impact energy: Aku≥39J; high strength, good plasticity and toughness, 45# steel plate after quenching without tempering, the hardness is greater than HRC55 (Up to HRC62) is qualified. After heat treatment and tempering, it can reach HRC42-46, which can not only ensure its good mechanical properties, but also obtain the hardness requirements of the surface. It is used to make small section adjustments that can withstand larger loads. Quality parts and large normalized parts with less stress, as well as surface hardened parts that do not require high core strength, such as tips, guide posts, watch hands and other components.

Product parameters

Material:	forged square steel bar
Diameter:	100mm-1000mm
Length:	2000mm-12000mm Straightness: 3mm/M max; square bar.100-1000mm, blocks sizes up to 800*1000mm
Process:	EAF + LF + VD + Forged + Heat Treatment (optional)
Delivery condition:	Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
Delivery Time:	30-45 days
MOQ:	20 tons
Heat treatment:	Normalized / Annealed / Quenched / tempered
Forged ratio:	no less than 3:1
Technical Data:	According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing
Test:	Ultrasonic test according to SEP 1921-84 G3 C/c
Marking:	Grade, heat NO. length will be stamped one each bar with required color
Payment:	30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight
Application:	Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.

Technical data

Grade	Dia(mm)	C	Si	Mn	P	S	Ni	Cu	Cr
20	18-600	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25
45	20-600	0.42-0.50	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25

Mechanical properties

Yield strength σs/MPa (>=)	Tensile strength σb/MPa (>=)	Elongation δ5/% (>=)	Reduction of area ψ/% (>=)	Hardness HBS
≥355	≥600	≥16	≥40	≤197

Features of C45 steel

1, Medium carbon structural steel

2, High strength and machinability

3, Good toughness, plasticity and abrasion resistance

4, Typically used in quenched and tempered or normalized conditions

4,Typical Applications

1, Widely used in machine manufacturing

2, For shaft parts

3, Stamping die drawing parts repair and hardfacing

Factory profile

Adhering to the tenet of "integrity first, quality for survival", the company has established a complete marketing channel of "based in North China, radiating the whole country, and facing the world", and has not only established a solid strategic partnership with many domestic and foreign enterprises.We have been committed to product development, production and sales, after more than ten years of efforts, our products have been widely used in various fields.

Packing method: Packing according to customer's requirement.

The company has more than 110,000 square meters of production and processing base, fully introduced the international advanced modern automatic production and processing equipment, and took the lead in passing the ISO9001, TS16949, BV, SGS and other international well-known institutions certification.The products are mainly exported to Italy, Mexico, South Korea, Israel, Turkey, India, Pakistan, Kyrgyzstan, Oman, Kazakhstan, Vietnam, Myanmar and other countries. The company's supply is sufficient, the variety is complete, order production is fast, welcome domestic and foreign manufacturers, traders to contact us.

Company Advantages
1. We are a large-scale production enterprise integrating production, research and development, and can customize the products required by customers.
2. We have a perfect after-sales service system, which can track the problems encountered by customers in production at any time and provide corresponding technical support, so as to share our high-quality resources with customers.
3. After more than ten years of development, the company has complete product varieties and large inventory, which can be delivered in the shortest time.
4. Free samples are available.
5. With obvious price advantage, the company has complete production process, from raw materials to finished products integrated production can maximize the cost savings.