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{"title":"ASTM A29\/A29m Hot Rolled Alloy Steel Round Bars SAE4340 10-350mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/bb\/a1\/eb9afbd48509c13f9c6fa7b71d79-200x200-1\/astm_a29_2fa29m_hot_rolled_alloy_steel_round_bars_sae4340_10_350mm.jpg","attrs":{"Brand Name":"DELTA","Model Number":"SAE4340","Certification":"ISO","Place of Origin":"China"}}
{"title":"25Cr2MoVA Alloy Steel Round Bar Diameter 10 - 300mm Custom Cutting in Length","imgUrl":"https:\/\/img.chinax.com\/nimg\/b7\/8f\/c374af89362ac900e00ce51f86b6-200x200-1\/25cr2mova_alloy_steel_round_bar_diameter_10_300mm_custom_cutting_in_length.jpg","attrs":{"Brand Name":"DELTA","Model Number":"DIN 1.8159 (25CrMoV6-4) \/ 25Cr2MoVA","Certification":"ISO","Place of Origin":"China"}}
{"title":"EN DIN Standard 41CrAlMo7 Alloy Steel Round Bar Diameter 10 - 350mm SCM645 Alloy","imgUrl":"https:\/\/img.chinax.com\/nimg\/86\/8a\/f384d75ceea894a15b4f1ea6423b-200x200-1\/en_din_standard_41cralmo7_alloy_steel_round_bar_diameter_10_350mm_scm645_alloy.jpg","attrs":{"Brand Name":"DELTA","Model Number":"41CrAliMo7","Certification":"ISO","Place of Origin":"China"}}
{"title":"25Cr2MoVA \/ DIN1.8159 Alloy Steel Round Bar Hot Rolled Diameter 20 - 350mm in 6m","imgUrl":"https:\/\/img.chinax.com\/nimg\/55\/19\/5e678c170e39068beeabe330b547-200x200-1\/25cr2mova_2f_din1_8159_alloy_steel_round_bar_hot_rolled_diameter_20_350mm_in_6m_length.jpg","attrs":{"Brand Name":"DELTA","Model Number":"DIN 1.8159 (25CrMoV6-4) \/ 25Cr2MoVA","Certification":"ISO","Place of Origin":"China"}}
{"title":"EN 1.8507 (34CrAlMo5-10) Nitriding Steel Round Bar Diameter 10 - 300mm Custom","imgUrl":"https:\/\/img.chinax.com\/nimg\/25\/c9\/4f41b121bc96fda3bc795edf2de2-200x200-1\/en_1_8507_2834cralmo5_10_29_nitriding_steel_round_bar_diameter_10_300mm_custom_cutting.jpg","attrs":{"Brand Name":"DELTA","Model Number":"34CrAlMo5-10 \/ 1.8507","Certification":"ISO","Place of Origin":"China"}}
BAOSTEEL, XINGCHENG, DSS, CHONGQING, XNSS, HLXT, etc.
Standards Compliance
GB, ASTM, JIS, EN, DIN
Processing Services
Cutting, polishing, packing, heat treatment
Material Overview
34CrNiMo6 / 1.6582 Steel is a heat-treatable, low alloy engineering steel designed for a wide range of demanding applications. This material can be heat treated to achieve tensile strengths of 1000-1200 N/mm² while maintaining excellent ductility and shock resistance. It offers superior hardenability, allowing for medium tensile strengths in large sections, along with excellent wear resistance and impact properties at low temperatures. The steel is readily machinable and can be supplied in annealed condition for enhanced machinability or in hardened and tempered condition with hardness of 28-34HRC.
Technical Specifications
Standards and Equivalents
Standard
Grade
ASTM Equivalent
BS EN 10083-3:2006
34CrNiMo6 / 1.6582
ASTM A29:2004 - 4337
BS EN 10250-3:2000
34CrNiMo6 / 1.6582
ASTM A29:2004 - 4337
Chemical Composition
Standard
C
Mn
Si
P
S
Cr
Mo
Ni
BS EN 10083-3:2006
0.30-0.38
0.5-0.8
0.40 max
0.025 max
0.035 max
1.3-1.7
0.15-0.30
1.3-1.7
BS EN 10250-3:2000
0.30-0.38
0.5-0.8
0.40 max
0.035 max
0.035 max
1.3-1.7
0.15-0.30
1.3-1.7
ASTM A29:2004 - 4337
0.30-0.40
0.6-0.8
0.20-0.35
0.035 max
0.040 max
0.70-0.90
0.20-0.30
1.65-2.00
Mechanical Properties
Thickness (mm)
Yield Strength (N/mm²)
Tensile Strength (N/mm²)
Elongation A (%)
Reduction of Area Z (%)
Toughness CVN (J)
< 16
min. 1000
1200 - 1400
min. 9
min. 40
min. 35
>16 - 40
min. 900
1100 - 1300
min. 10
min. 45
min. 45
>40 - 100
min. 800
1000 - 1200
min. 11
min. 50
min. 45
>100 - 160
min. 700
900 - 1100
min. 12
min. 55
min. 45
>160 - 250
min. 600
800 - 950
min. 13
min. 55
min. 45
Processing Characteristics
Heat Treatment (Quenched and Tempered)
Slowly heat to 850°C hardening temperature
Soak at temperature and quench in oil
Temper immediately after reaching room temperature
Heat uniformly to appropriate tempering temperature (typically 600°C)
Withdraw from furnace and air cool
Forging
Hot forming temperature range: 1100-900°C
Machinability
Best machined in annealed or normalized and tempered condition. Compatible with all conventional machining methods.
Welding
Suitable for fusion or resistance welding. Requires preheat and post-heat procedures following established welding methods.
Applications
EN DIN 34CrNiMo6 steel is ideal for tools requiring high strength and good plasticity. Commonly used for large, critical components including heavy machinery axles, turbine shafts, high-load transmission parts, fasteners, crankshafts, gears, and heavily loaded motor construction components.
Company Capabilities
We specialize in various round steel materials from major steel mills including Tiangang, Shandong Luli Steel, Rongcheng Steel, Handan, Laigang, and Jiyuan Steel. As designated agents in Tianjin, we maintain monthly sales of 40,000-60,000 tons across multiple steel grades.
Inventory & Processing
4+ warehouses for stock management
30+ product grades consistently in stock
800+ sizes available for quick delivery
Dedicated processing warehouse for cutting, polishing, and heat treatment
Global Distribution
Our sales network spans worldwide, serving machinery, standard parts, automotive, gears, forging, hardware tools, and various industrial sectors.
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
