H8 tolerance Ra 0.04 Top Quality SRB tube with best price
USD $1,000 - $1,500 /Metric Ton
Min.Order:10 Metric Tons
Yantai Xinpeng Steel Pipe Co., Ltd.
H8 tolerance Ra 0.04 Top Quality SRB tube with best price
Technical parameter:
1.Raw material:10#,20#,35#,45#,Q345,16Mn,25Mn,27SiMn,42CrMo,Aisi1020,Aisi1045,st35,St45,St52etc
2.ID:30-250mm
3.ID tolerance:H8,H9
4.Surface roughness:Ra 0.02— 0.4μm
5. Final supply condition:cold drawn and stress-relieved(BK+S)
6. Machining allowance:0.5-1.5mm
7.Wall thickness:10%×ID
Dimensions tolerance
OD(mm) | ID (mm) | Tolerance | ||||
OD (mm) | ID (mm) | Wall thickness deviation (mm) | Ovality (mm) | Curvature(mm/m) | ||
40-74 | 30-65 | ±.01 | -0.3,-0.5 | ≤0.5 | ≤0.1 | 0.3 |
74-98 | 65-85 | ±.01 | -0.4,-0.6 | ≤0.5 | ≤0.15 | 0.3 |
100-116 | 85-100 | ±.02 | -0.4,-0.6 | ≤0.6 | ≤0.15 | 0.3 |
124-134 | 110-115 | ±.02 | -0.6,-0.8 | ≤0.6 | ≤0.20 | 0.3 |
140-158 | 120-135 | ±.02 | -0.7,-0.9 | ≤0.8 | ≤0.20 | 0.3 |
165-176 | 140-150 | ±.02 | -0.7,-0.9 | ≤0.8 | ≤0.20 | 0.3 |
188-203 | 160-180 | ±.02 | -0.7,-0.9 Honed | ≤0.8 | ≤0.20 | 0.3 |
Tolerance on ID
No. | Inside diameter(mm) | ID machining allowance(mm) |
1 | 50-80 | 0.5-0.8 |
2 | 81-125 | 0.7-1.1 |
3 | 125-200 | 0.9-1.2 |
4 | 200-250 | 1-1.5 |
Other dimension can be customized |
Commercial length
No. | ID Min.(mm) | Length(mm) |
1 | 50 | 700—2000 |
2 | 63 | 700—3000 |
3 | 80 | 700—4000 |
4 | >90 | 700—6000 |
Other dimension can be customized |
Delivey conditions:
we can supply all kinds of seamless steel pipes such as hot rolled seamless steel pipe,cold drawn seamless steel pipe,honed tubes,cold drawn welded tubes(DOM tubes).
Management System Certification:
Production Process:
Dimension inspecting