Our company adhers to the principle of integrity, we will establish a long-term good and stable cooperative relationship with customers with high-quality UNS S3220 stainless steel sheet, 316 Stainless Steel Plate, Pure Titanium Plate, reasonable price and perfect after-sales service. Our company has reliable production testing equipment and advanced management to ensure that the product quality is stable and meets the standards. Our company will adhere to the goal of continuous improvement, meeting customer expectations, ensuring quality first, and opening up the global market. Honesty and trustworthiness are the foundation of our survival. Diligence and initiative are the first conditions for our development and growth, and innovation and cooperation are our long-term development strategies. Welcome customers to negotiate business.
4140: The steel is made of alloy steel, which complies with the standard ASTM A29 / A29M-04
This product has high strength and high hardenability. Good toughness, small deformation during quenching, creep strength and long-term strength at high temperature. Used for forgings requiring higher strength and larger quenched and tempered sections than 35CrMo steel. Such as large gears for locomotive traction, supercharger driving this wheel, rear axle, connecting rods and spring clips under heavy load, can also be used for oil deep well drill pipe joints and fishing tools below 2000m

4140 steel shaft standard
The standard is listed below
USA ASTM4140
JapanSCM440
Germany 42CRMO4 1.7725 steel bar
Machined 4140 steel shaft

Forged steel bar

42CrMo steel belongs to ultra high strength steel, with high strength and toughness, hardenability is also good.
Technical parameters
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Specifications |
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Chemical component |
C :0.38~0.45% Si:0.17~0.37% Mn:0.50~0.80% S :≤0.035% P :≤0.035% Cr:0.90~1.20% Ni:≤0.30% Cu:≤0.30% Mo:0.15~0.25%[ |
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Mechanical property |
Tensile strengthσb/MPa):≥1080
Yield strength(σs/MPa):≥930 Elongation (δ5/%):≥12 |
Usage
®4140 material can be used to produce shaft and steel roller, cnc machine
®Delivery time 25-35workdays
®belongs to chromoly alloy steel
Stock 4140 steel bar

Why choose us?
Big: Many cases, sufficient experience, teamwork.
Specialized: Focus on the production and sales of "steel", with a finer division of labor.
Reality: Simplify the complexity, explain the profound things in a simple way, and solve the problem.
Strategy: understand the customer, come up with a strategy, make choices, and decide the way out.
Fast: The market responds quickly and tasks are completed quickly.

Our Service

Persisting in 'High top quality, Prompt Delivery, Aggressive Price', now we have established long-term cooperation with customers from the two overseas and domestically and get new and aged clients' large comments for Forging 4340/4140 Steel Piston Rod/Lift Rod/Shaft Made in China. We sincerely hope to have the opportunity to meet with you and see how we can help you further your own business. We adhere to the corporate spirit of 'seeking truth, progress, innovation, and efficiency', conform to the market economy, and strive for excellence, thereby enhancing the competitiveness of the company.

