Premium Quality C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225 1.2210 Forged Special Round Square Roller Carbon Alloy Special Steel

China Premium Quality C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225 1.2210 Forged Special Round Square Roller Carbon Alloy Special Steel, Find details about China C20 C45 42CrMo4 Special Steel, 30crnimo8 34CrNiMo6 40cr Special Steel from Premium Quality C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225 1.2210 Forged Special Round Square Roller Carbon Alloy Special Steel

Basic Info.

Model NO.

C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225

Product Name

Steel Plate/Coil

Standards

ASTM, AISI, GB, JIS, DIN, BS

Certification

ISO, RoHS, Ibr

Trademark

Boer King

Specification

0.5-300mm

Origin

Tianjin China

HS Code

7225

Model NO.

C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225

Product Name

Steel Plate/Coil

Standards

ASTM, AISI, GB, JIS, DIN, BS

Certification

ISO, RoHS, Ibr

Trademark

Boer King

Specification

0.5-300mm

Origin

Tianjin China

HS Code

7225

Product Desciption

Congratulations you find us the best supplier ↓
We do care:
--Good Quality
--On-time Delivery
--Competitive Price
--Efficient After Service

Why you choose us?
1. more than 20 years experiences in steel business
2. good quality
3. competitive price
4. meet your needs via reprocessing
5. excellent service
6. short delivery time
7. long mutual beneficial business cooperation

Product Description

1: AISI 4140 steel introduction
AISI 4140 is defined as a low alloy steel which has 1% Cr-Mo as strengthening alloy elements.Compared with AISI 4130, it has a higher carbon content with good balance of strength, toughness ,abrasion and impact resistance and heat treatment capabilities,but poor in weldability characteristics.AISI 4140 is generally supplied in quenched and tempered condition with hardness 28-32HRC

2: AISI 4140 Steel equivalent

Country	China	Japan	Germany	USA	British
Standard	GB/T 3077	JIS G4105	DIN (W-Nr.) EN 10250	AISI/ASTM ASTM A29	BS 970
Grade	42CrMo	SCM440	42crmo4/1.7225	4140	EN19/709M40

3: AISI 4140 steel chemical composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
42CrMo	0.38-0.45	0.17-0.37	0.5-0.80	≤0.035	≤0.035	0.9-1.2	0.15-0.25	-
SCM440	0.38-0.43	0.15-0.35	0.6-0.85	≤0.035	≤0.04	0.9-1.2	0.15-0.30	-
42crmo4/1.7225	0.38-0.45	≤ 0.4	0.6-0.9	≤0.025	≤0.035	0.9-1.2	0.15-0.30	-
4140	0.38-0.43	0.15-0.35	0.75-1.00	≤0.035	≤0.04	0.8-1.1	0.15-0.25	-
EN19/709M40	0.35-0.45	0.15-0.35	0.5-0.80	≤0.035	≤0.035	0.9-1.5	0.2-0.40	-

4: AISI 4140 steel mechanical properties(for guidance only)

Grade	Tensile strength σb(MPa)	Yield strength σs (MPa)	Elongation δ5 (%)	Reduction ψ (%)	Impact Value Akv (J)	Hardness
4140	≥1080	≥930	≥12	≥45	≥63	28-32HRC

5: AISI 4140 steel overviews

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
Heat treatment	Normalized ; Annealed ; Quenched ; Tempered
Surface condition	Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition	Forged; Hot rolled; Cold drawn
Test	Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms	T/T;L/C;/Money gram/ Paypal
Trade terms	FOB; CIF; C&F; etc..
Delivery time	30-45 days
Application	AISI 4140 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc. Typical applications for 4140 steel uses include:forged gears,spindles,fixtures,jigs,collars,Axles,conveyor parts,crow bars,logging parts,shafts,sprockets,studs,pinions,pump shafts, rams, and ring gears etc

6: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.

Premium Quality C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225 1.2210 Forged Special Round Square Roller Carbon Alloy Special Steel

Premium Quality C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225 1.2210 Forged Special Round Square Roller Carbon Alloy Special Steel

Company information

Tianjin Boer King Steel is a professional trading company and has been in steel industry for more than 15years, specializing in seamless steel pipe,oil casing/drill pipe, galvanized steel pipe, stainless steel pipe,ERW/SSAW/LSAW/ welded pipe.

Also we sale hot and cold rolled steel coils,steel plates,galvanized steel coils, all kinds of profiles like H-beam, Angel bar,C profile etc.

We have established long term cooperations with several famous steel manufactures all over the world, and we can offer you best quality products with competitive price which will give you an edge over your competitors.

Besides, we offer best service all the time.We will do our best to satisfy you needs for the products. Our products have been sold in many countries and areas of the world including South America, Iran, Kenya, Israel etc, and our export volume reaches 160,000tons per year.

We execute quality gurantee system ISO 9001,2008 strictly and all certicates and the third party inspection like MTC,API,ABS,ISO9001,SGS BV etc. will be provided as client's requirements.

Premium Quality C20 C45 42CrMo4 30crnimo8 34CrNiMo6 40cr 1.7225 1.2210 Forged Special Round Square Roller Carbon Alloy Special Steel