Forged Round Bar GCr15 SAE4330 65Mn 60Si2Mn Black steel Rod Bar China Manufacturer

Home > Products > Carbon / Alloy Steel Profile > Carbon / Alloy Steel Round Bar > Forged Round Bar GCr15 SAE4330 65Mn 60Si2Mn Black steel Rod Bar

Forged Round Bar GCr15 SAE4330 65Mn 60Si2Mn Black steel Rod Bar

Product Description

Forged Round Bar GCr15 SAE4330 65Mn 60Si2Mn Black steel Rod Bar

Product Description

Specifications of forged round bar

Standard: AISI, JIS, DIN, GB

Grade: 4140, SCM440, 1.7225, 42CrMo

Diameter: Round steel bar 60-800mm

Flat steel bar 25-400mm*200-800mm

Length: 2-12m or as required

Technique: Hot Rolled, Forged

Surface: Black surface/ Grinded/ Machined

GB	DIN	AISI	JIS
42CrMo	1.7225	4140	SCM440

Forging		Heat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc.
Annealing		Heat to 830°C-850°C.Cool in furnace.
Normalising		Heat to 870°C-900°C.Cool in still air.
Stress Relieving		Annealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air.
Hardening		Heat to 830°C-880°C. Quench in oil or polymer.
Tempering		Heat to 450°C-700°C cool in still air. NB. Tempering within the range 200°C-420°C will result in temper brittleness and should be avoided.

Chemical Composition

Chemical composition of forged round bar

C	Si	Mn	Cr	Mo	P	S
0.38-0.43	0.40max	0.60-0.90	0.90-1.20	0.15-0.30	≤0.035	≤0.035

Production Flow

Produce Process of forged round bar

Electric arc furnace melting→refining furnace→vacuum treatment furnace→

→cast ingot→steel ingot anneal→ heating → high-speed forging, refining

forging→annel,retarded cooling,air cooling→quenching and tempering

treatment→finishing operation→test→finished products

Finished Products

Stocks of forged round bar

Payment Terms	T/T, L/C, Trade Assurance order
Price Terms	FOB, CRF, CIF, EXW
Delivery Time	15 days after get the deposit
Packing	in bundles, standard sea worthy packing
MOQ	1 Ton
Leading Port	Tianjin or Qingdao or Shanghai or Guangzhou

Our Services

we can supply the steel rod, steel plate, steel coils as well as beams for your selection.

Welcome to contact us should any products feel interested!

Tel: +86 22 60287528

Fax: +86 22 86888386

Attn: Lisa

forged round bar forged round steel bar forged round rod forged round bar price forged steel bar/rod

Contact us if you need more details on Forged Round Bar. We are ready to answer your questions on packaging, logistics, certification or any other aspects about GCr15 Forged Round Bar、Forged Black Round Bar. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Carbon / Alloy Steel Profile > Carbon / Alloy Steel Round Bar

Premium Related Products