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8506. Cost Effective Stable Heat Treated 4340 Alloy Steel Forged Round Bars 
[Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8507. Professional High Rigidity Solid Industrial Forged Rod Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8508. Superior Wear Resistant Hot Forged Precision Alloy Steel Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8509. Reliable Heavy Duty Industrial High Strength Alloy Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8510. Industrial Durable Solid Precision Machined Alloy Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8511. Premium High Strength Hot Forged 4340 Alloy Steel Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8512. Reliable Tempered High Performance Solid Alloy Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8513. Wholesale Premium High Rigidity Hot Forged Steel Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8514. High Grade Quenched High Strength Industrial Alloy Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8515. Wear Resistant High Performance Hot Forged Alloy Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8516. Heavy Duty Construction High Toughness Solid Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8517. Factory Direct High Precision Industrial 4340 Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8518. Bright Polished Premium High Strength Alloy Steel Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8519. Stable Toughness Industrial Solid Structural Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
8520. Advanced Heat Treated High Hardness 4340 Alloy Forged Round Bars [Apr 28, 2026]
[Apr 28, 2026] Product Introduction Forged alloye steel round bars AISI/SAE 4340 Similar grade: SNCM439 / 817M40 Size: φ130-800mm Chemical Composition: 4340 as per ASTM A29: C Mn Si Cr Mo P S Ni Cu min 0.38 0.60 0.15 0.70 0.20 - - ...
Company: Jiangsu Zhuhong Forging Co., Ltd.
