precision steel tubing.mp4

Product Name: 4140 ASTM A519 seamless precision pipes automotive tubes , Mechanical Alloy Steel Tubing
Material:SAE1010, SAE1020, SAE4130,4140,SAE1026
Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
Delivery Condition: CW, SR, A, N
Application: For mechanical application
Stable Quality with Comeptitive Price.
+SR Heat Treatment, Strength Relief heat treatment.
Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, On line inspection
5. Heat Treatment: SR, A, N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.

Product Name	4130 / 4140 Seamless Alloy Steel Tube , Mechanical Alloy Steel Tubing
Material	1010, 1020, 1026, 1045, 4130, 4140
Delivery Condition	HR, CW, SR, A, N
Standard	ASTM A519
Application	Mechanical usage
Certificate	TS16949, ISO 9001
HS code	7304319000
Delivery Time	45 days
Pakcing	Bundles or Woodern Boxes

Grade	C	Mn	P ≤	S ≤	Si	Cr	Mo
1010	0.08--0.13	0.30--0.60	0.40	0.05	--	--	--
1020	0.18--0.23	0.30--0.60	0.40	0.05	--	--	--
1026	0.22--0.28	0.60--0.90	0.40	0.05	--	--	--
1045	0.43--0.50	0.60--0.90	0.40	0.05	--	--	--
4130	0.28--0.33	0.40--0.60	0.04	0.04	0.15--0.35	0.80--1.10	0.15--0.25
4140	0.38--0.43	0.75--1.00	0.04	0.04	0.15--0.35	0.80--1.10	0.15--0.25

Grade	Condition	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)	HRB
1020	HR	345	221	25	55
	CW	483	414	5	75
	SR	448	345	10	72
	A	331	193	30	50
	N	379	234	22	60
4130	HR	621	483	20	89
	SR	724	586	10	95
	A	517	379	30	81
	N	621	414	20	89

Cold drawn and Cold rolled bearing tubes tolerance control level
Outer Diameter	Diameter Tolerance	Outer Diameter	Diameter Tolerance
(mm)	(mm)	(mm)	(mm)
≤12.70	±0.08	>50.80～63.5	±0.25
12.7～25.40	±0.10	>63.50～76.20	±0.30
>25.4～38.10	±0.15	>76.20～101.60	±0.40
>38.1～50.80	±0.20	>101.60～203.20	±0.50
Remark:Tolrance on outer diameter and Inner diameter,wall thickness can be specified by customer requested,

Delivery Condition: +C, +LC, +SR, +A, +N

Production Size Range:

OD: 10-210mm
WT: 2-30mm
Length: 2-5.8m

Alloy Steel Tube Characteristic:
High strength
High-precision
Good Surface Quality
Stable quality
Smooth Roughness

Production Processs:

Seamless Cold Drawn or Seamless Cold Rolled + Heat Treatment or Stress released control