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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"}}
High-strength nickel-molybdenum alloy steel bars and forged shafts manufactured to DIN 34CrNiMo6 and W-Nr 1.6582 standards. Available in round bars, square bars, flat bars, and custom forged components.
Material Specifications
Chemical Composition
Element
Content (%)
Carbon
0.30-0.38
Silicon
Max 0.40
Manganese
0.50-0.80
Chromium
1.30-1.70
Molybdenum
0.15-0.30
Nickel
1.30-1.70
Mechanical Properties (Quenched & Tempered)
Property
Value
Tensile Strength
≥980 MPa (100 kgf/mm²)
Yield Strength
≥785 MPa (80 kgf/mm²)
Elongation
≥9%
Reduction of Area
≥40%
Impact Energy (Akv)
≥47 J
Available Forms and Sizes
Forged Steel Components
Round Bars: Ø80-1,000mm × 3,000-10,000mm
Square Bars: 150×150-500×500mm × 3,000-8,000mm
Flat Bars, Shafts, Blocks (Customizable)
Rolled Steel Bars
Round Bars: Ø10-300mm × 3,000-10,000mm
Custom lengths available
Dimensional Tolerances
Black surface: -0/+8mm
Machined surface: -0/+3mm
Straightness deviation: 2mm/meter maximum
Heat Treatment Processes
Hardening & Tempering
Heat uniformly to 850°C
Quench in oil
Temper at 550°C for minimum 2 hours
Cool in furnace
Annealing
Heat to 800-850°C
Slow cool to 550°C
Complete annealing in air
Normalizing
Heat to 850°C
Cool to room temperature in air
Quality Certification
Chemical composition per DIN 7527-6, EN 10250-3
Mechanical properties testing
Non-metallic inclusions analysis
Grain size: ≥5 (preferred 8) per DIN 50601
Ultrasonic testing 360° per EN 10228-3
Industrial Applications
High-load transmission shafts
Engine camshafts and connecting rods
Gears and pinions
Bearings and piston rings
Crankshafts and ring gears
Mining equipment components
Forging Guidelines
Careful preheating required
Forging temperature: 1150-1200°C
Maintain temperature above 850°C during forging
Why Choose Our 34CrNiMo6 Steel?
Quality materials sourced from certified steel mills
Competitive pricing without compromising quality
Fast and reliable delivery services
ISO 9001 certified quality management system
Comprehensive value-added services available
Additional Services
Metal cutting and sizing
Machining (blanking, milling, grinding)
Heat treatment services
Sawing for small or large quantities
Sawing-to-size capabilities
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification:
Verified Supplier
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...