SHANDONG LE REN SPECIAL STEEL CO., LTD.
$800-1100 /Metric Ton
| 지불 유형: | L/C,T/T,D/P,D/A,Money Gram,Western Union,D/A |
| 인 코텀: | FOB,CFR,CIF,EXW,FCA,CPT,DDP,DDU,Express Delivery |
| 최소 주문량: | 5 Metric Ton |
| 수송: | Ocean,Land,Air,Express,Express |
| 포트: | Qingdao,Shanghai,Tianjin |
모형: SCM440
상표: 르 렌
표준: AiSi, ASTM, bs, 소음, GB, JIS
원산지: 중국
생산 과정: 냉간 인발
신청: 구조용 강철봉, 다이 스틸 바, 공구 강봉
합금 여부: 합금인가
특수강: 콜드 헤딩 스틸
종: 합금강 바, 탄소강 바
공차: ± 1 %
처리 서비스: 절단
| 판매 단위 | : | Metric Ton |
| 단일 패키지 크기 | : | 5cm*5cm*20cm |
| 단일 총중량 | : | 3kg |
| 포장 종류 | : | 카톤 + 나무 상자 |
scm440 alloy steel grade bar
Our company is a manufacturer of SCM440 alloy steel bar including SCM440 alloy steel round bar, SCM440 alloy steel square bar, SCM440 alloy steel flat bar, SCM440 alloy square steel bar and SCM440 alloy hexagonal steel bar.
SCM440 steel 중간 경화성의 크롬-몰리브덴 통행 강철입니다. 그것은 중간 강도 수준과 좋은 충격 특성을 가진 범용 고장 강철입니다. Similar to S45C steel grade and SCR440 steel grade, they are all medium carbon steel.
The difference between S45C steel material and SCM440 steel material: SCM440 steel has alloy element, it is kind of alloy steel bar. After heat treatment, SCM440 steel material can get between mechanical properties.
SCR440 vs SCM440: SCM440 steel grade has better hardenability than SCM440 steel material. After quenching and tempering, SCM440 can be whole pre hardened from core to side.
What is SCM440 steel used for? SCM440 steel bar is mainly used to produce high strength stud bolt, threaded rods, wind power bolt, pre-stressed anchor bolts, post stressed anchor bolt, steel tie rod, tie bar, tension rod, tension bar etc. Shaft, axle shaft, crankshaft, shaft for sleeve, linear shaft, pump shaft, rotor shaft, sensor shaft, spline shaft, drive shaft, mandrel shaft, transmission shaft, screw rod etc. CNC machines, precision CNC machines etc. Ejector pins and Ejector rods.
SCM440 steel spec / SCM440 steel specifications:
1. Chemical composition of SCM440 steel:
|
Materail |
Chemical Composition % |
||||||
|
ASTM/SAE/AISI |
C |
Si |
Mn |
S |
P |
Cr |
Mo |
|
Aisi 4140 / sae 4140 / astm 4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
0.035 max |
0.035 max |
0.80-1.10 |
0.15-0.25 |
2. SCM440 steel equivalent steel grade:
|
GB |
ASTM/SAE/AISI |
DIN |
SCM |
AS /NZS1444 |
|
42CrMo |
Aisi 4140 / sae 4140 / astm 4140 |
42CrMo4 |
SCM440 |
AS 4140 |
3. SCM440 steel sizes:
|
SCM440 steel bar shapes |
SCM440 steel bar sizes range |
SCM440 steel bar tolerance |
|
SCM440 steel round bar |
8mm to 100mm for SCM440 cold drawn steel round bar |
h9 h10 h11 -0.05mm/+0mm min |
|
30mm to 100mm for SCM440 peeled steel round bar |
h9 h10 h11 -0.02mm/+0mm min |
|
|
100mm to 300mm for 4140 turned steel round bar |
+/-2mm max |
|
|
300mm to 800 for 4140 forged steel round bar |
+/-10mm max |
|
|
SCM440 steel square bar |
(8*8)mm to (100*100)mm |
h9 h10 h11 -0.05mm/+0mm min |
|
SCM440 steel flat bar / SCM440 steel rectangular bar |
(8*20)mm to (80*100)mm |
+/-0.1mm |
|
SCM440 steel hex bar / octagon SCM440 steel |
16mm to 75mm |
h9 h10 h11 |
4. Weight of SCM440 steel:
|
Weight of SCM440 steel round bar |
0.00617*D*D*Length |
|
Weight of SCM440 square steel bar |
0.00785*D*D*Length |
|
Weight of SCM440 hex bar |
0.0068*D*D*Length |
5. SCM440 steel microstructure:
SCM440 steel bar grain size: 5 to 8
SCM440 steel nonmetal Impurity:
|
A |
B |
C |
D |
||||
|
T |
H |
T |
H |
T |
H |
T |
H |
|
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
6. Processing of SCM440 steel:
우리는 표면, 크기 및 미세 구조에서 모든 종류의 스틸 바를 처리하는 공장입니다. With complete production and processing facilities, we can supply all kind of pre heat treated SCM440 steel bar and pre machining SCM440 steel bar as following:
1) Heat treatment of SCM440 steel
Oil quenching SCM440 steel / SCM440 normalizing steel / pre hardened SCM440 steel / annealing SCM440 steel / stress relieving SCM440 steel / SCM440 qt steel / flame hardening SCM440 steel / SCM440 steel induction hardening / case hardening SCM440 steel / SCM440 oil quenched / austempering SCM440 steel / SCM440 steel water quenched / nitriding SCM440 steel / milling SCM440 steel
After heat treatment, SCM440 steel bar can get better heat treated SCM440 steel properties, for example:
SCM440 steel quenched and tempered properties:
Yield strength of SCM440 steel: 930MPa min
Tensile strength of SCM440 steel: 1080MPa min
Elongation of SCM440 steel: 12% min
Reduction area of SCM440 steel: 50% min
Rockwell hardness of SCM440 steel: 32HRC min
Brinell hardness of annealed SCM440 steel: 217HB max
Vickers hardness of SCM440 steel: We can also guarantee the Vickers hardness based on your special requirements.
2) Machining SCM440 steel:
knurling SCM440 steel / tapping SCM440 steel / grinding SCM440 steel / turning SCM440 steel / threading SCM440 steel / cutting SCM440 steel / drilling SCM440 steel / forging SCM440 steel / laser cutting SCM440 steel / reaming SCM440 steel / stick welding rod for SCM440 steel / bending SCM440 steel / brazing SCM440 steel / straightening SCM440 steel / tg&p SCM440 steel / polishing SCM440 steel / cold drawing SCM440 steel
After the machining, SCM440 steel can get precision size, various surface, better roughness, straightness etc. SCM440 steel can be used for axe, pins, knives, gun barrels, gears, bolts, washers, hammer, sword etc.
As a Chinese steel bar professional manufacturer and supplier of more than twenty years, with complete produce and processing facilities, advanced testing equipments and big stock of steel bar, we can supply SCM440 steel bar with good quality, competitive price, short delivery time and personalized customization. 우리는 노인과 신규 고객이 기술적 질문과 요구에 대해 문의 할 수 있도록 환영합니다.
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