High Carbon Tempered Steel Material C70 Spring Steel Strip

We emphasize advancement and introduce new products and solutions into the market each year for 60si2mna steel wire JIS G3561, 55crsi tempered spring steel wire ASTM-A230-99, Cold Drawn Spring Steel Wire factory. Our company insists on the purpose of 'takes service priority for standard, quality guarantee for the brand, do business in good faith, to provide professional, rapid, accurate and timely service for you'. Our company adheres to the concept of 'customer first, enterprising and honest management' and adheres to the principle of 'customer and service' to provide high-quality service for customers. Our company's new product research and development capabilities and product delivery capabilities are in the leading position, our testing, testing equipment and means are advanced and complete. Our production capacity and after-sales service capabilities continue to enhance, our company is gradually becoming a modern enterprise with standardized management.

Characteristics and scope of application:

Is widely used in Si Mn spring steel, strength, elasticity and hardenability, slightly higher than 55Si2Mn. Suitable for railway vehicles, automobile and tractor industry production bear a larger load or a flat spring wire diameter in the spiral spring, below 30mm is suitable for the production of temperature at 250 DEG C nonrefractory spring corrosion medium and under alternating load and in large type under high stress the importance of working roll spring.

Chemical composition:

C:0.56 to 0.64

Si:1.60 to 2

Mn:0.60 to 0.90

S: = 0.030

P: = 0.030

Cr: = 0.35

Ni: = 0.35

Cu: = 0.25

Mechanical properties:

The ultimate tensile strength of B (MPa): 1568 (160)

Yield strength s (MPa): 1372 (140)

10 elongation (%): 5

Section shrinkage (%): 20 PSI

The hardness is less than or equal to 321HB;: hot rolling, cold drawing + heat treatment, less than 321HB

Specification and metallographic structure of heat treatment:

Specification for heat treatment: quenching at 870 + 20 C, oil cooling; tempering at 440 C + 50 C (special needs, + 30).

We always consider the needs of customers as our quest, and try our best to provide wholeheartedly high-quality High Carbon Tempered Steel Material C70 Spring Steel Strip and first-rate services to customers at home and abroad to create a brighter future. We create brands and contribute to economic development, environmental protection and social progress. After years of development, the company's product categories continue to increase, the production scale and sales scope continue to expand, thus our company has maintained a good and steady development momentum.